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  • 1
    Online Resource
    Online Resource
    Oxford :Taylor & Francis Group,
    Keywords: Trace fossils. ; Electronic books.
    Description / Table of Contents: This updated edition includes an appendix of criteria for the identification of ichnotaxa and covers all aspects of tiering, trace fossil diversity and ichnoguilds.
    Type of Medium: Online Resource
    Pages: 1 online resource (379 pages)
    Edition: 1st ed.
    ISBN: 9781135076009
    DDC: 560
    Language: English
    Note: Cover -- Title -- Copyright Page -- Contents -- Preface to the second edition -- Preface to the first edition -- Introduction -- Part One Neoichnology -- 1 Animal-sediment relationships -- 1.1 Why do animals burrow? -- 1.1.1 Protection and concealment -- 1.1.2 Respiration -- 1.1.3 Suspension feeding -- 1.1.4 Deposit feeding -- 1.1.5 Surface detritus feeding -- 1.1.6 Gardening -- 1.1.7 and the opposite -- 1.1.8 Chemosymbiosis -- 1.1.9 Predation -- 1.1.10 Reproduction and trauma -- 1.1.11 Other behaviour -- 1.2 How do animals burrow? -- 1.2.1 Intrusion -- 1.2.2 Compression -- 1.2.3 Excavation -- 1.2.4 Backfill -- 1.2.5 Spreite -- 1.2.6 Bioturbation -- 1.3 The substrate -- 1.3.1 Grainsize -- 1.3.2 Water content -- 1.3.3 Shear strength -- 1.3.4 Mucus and the effect of bioturbation -- 1.3.5 Terminology of substrate consistency -- 1.4 Tubes and walls -- 1.5 Physical induction of flow in burrows -- 1.6 Animal-sediment ecology -- 2 Sediment stirrers -- 2.1 Interstitial meiofauna and microfauna -- 2.2 Haustoriid amphipods -- 2.3 Intruders in soft substrate -- 2.4 Swimming through the substrate -- 3 The work of worms (mostly) -- 3.1 Two worms in soft mud -- 3.1.1 A priapulid worm -- 3.1.2 A carnivorous polychaete worm -- 3.2 Sea anemones and other cnidarians -- 3.2.1 Actinaria -- 3.2.2 Ceriantharia -- 3.2.3 Sea pens -- 3.3 U-burrows for suspension feeders -- 3.3.1 The chaetopterid worm -- 3.3.2 The fat innkeeper -- 3.3.3 A less unusual echiuran -- 3.3.4 Circular arguments on U-shaped burrows -- 3.3.5 Spoke burrows, U-burrows and L-burrows -- 3.4 U-burrows for detritus feeders -- 3.4.1 The tidal flat shrimp -- 3.4.2 Life of the lugworm -- 3.4.3 The funnel U-burrow -- 3.4.4 A pedate holothurian -- 3.4.5 Some enteropneusts -- 3.4.6 Rings of pits around a mound -- 3.4.7 Poisonous worms -- 3.5 Deposit-feeder conveyors -- 3.5.1 A fat holothurian conveyor. , 3.5.2 A slender polychaete conveyor -- 3.5.3 Pectinariidae, mobile tube-worms -- 3.5.4 Reverse-conveyor activity -- 3.6 A thick-walled U-tube -- 3.7 Chimney-building worms -- 3.8 Unwhole worms, the Pogonophora -- 4 Some celebrated burrowers -- 4.1 Bivalves -- 4.1.1 A deposit feeder -- 4.1.2 A jet-propelled suspension feeder -- 4.1.3 Equilibrium and escape in bivalves -- 4.1.4 Bivalve chemosymbionts -- 4.2 Two heart urchins of the same genus -- 4.2.1 An almost anoxic heart urchin -- 4.2.2 A very oxic heart urchin -- 4.3 Anomuran crustacean burrowers -- 4.3.1 Callichirus major -- 4.3.2 Boxworks for deposit feeding -- 4.3.3 Spiral and dendritic architecture -- 4.3.4 Y-burrows for suspension-feeding gardeners -- 4.3.5 Gardening deposit feeders -- 4.3.6 Classifying thalassinidean burrow systems -- 4.4 Stomatopods -- 4.5 More crustaceans and some fish -- 4.6 Spiral traps -- 5 The synecology of bioturbation -- 5.1 Commensalism -- 5.1.1 Combination structures -- 5.1.2 Dependence at a distance -- 5.2 Substrate modification by bioturbation -- 5.2.1 Physical effects of bioturbation -- 5.2.2 Homogenization versus heterogenization -- 5.2.3 Chemical effects of bioturbation -- 5.3 Biological effects: amensalism and community succession -- 5.3.1 Amensal relationships -- 5.3.2 Trophic group amensalism -- 5.3.3 Community succession -- 5.3.4 Community replacement -- 5.4 Tiering -- 5.4.1 Environmental gradients -- 5.4.2 Vertical habitat partitioning -- 5.4.3 Some reasons for vertical restrictions -- 5.4.4 Deep-sea endobenthic tiering -- 5.5 Modelling bioturbation -- 5.5.1 Descriptive models -- 5.5.2 Mathematical models -- 5.5.3 A tiering model -- Part Two Palaeoichnology -- 6 The fossilization barrier -- 6.1 Taphonomy of trace fossils -- 6.2 Preservation potential -- 6.2.1 Semirelief preservation -- 6.2.2 Full-relief preservation -- 6.3 Cumulative structures. , 6.4 Key bioturbators and elite trace fossils -- 7 Some ichnological principles -- 7.1 The same individual or species can produce different structures corresponding to different behaviour patterns -- 7.2 The same burrow may be differently preserved in different substrates -- 7.3 Different tracemakers may produce identical structures when behaving similarly -- 7.4 Multiple architects may produce a single structure -- 7.5 Non-preservation of causative organisms -- 8 Ichnotaxonomy and classification -- 8.1 The development of trace fossil nomenclature -- 8.2 Status of trace fossil names in the ICZN -- 8.2.1 Fossil or not fossil? -- 8.2.2 Dual nomenclature -- 8.3 Ichnotaxobases -- 8.3.1 General form -- 8.3.2 Details of the burrow boundary -- 8.3.3 Branching -- 8.3.4 Filling material and structure -- 8.3.5 Trackways -- 8.4 Ichnogenus and ichnospecies -- 8.5 Compound trace fossils -- 8.6 Some problematic ichnogenera -- 8.6.1 Ophiomorpha-Thalassinoides-Spongeliomorpha -- 8.6.2 Cruziana-Rusophycus-Isopodichnus -- 8.7 Ichnofamilies -- 8.8 Confusions and conclusions -- 9 Stratinomy, toponomy and ethology of trace fossils -- 9.1 Preservational classifications -- 9.2 An ethological classification -- 9.2.1 Resting traces (cubichnia) -- 9.2.2 Crawling traces (repichnia) -- 9.2.3 Grazing traces (pascichnia) -- 9.2.4 Feeding traces (fodinichnia) -- 9.2.5 Dwelling traces (domichnia) -- 9.2.6 Traps and gardening traces (agrichnia) -- 9.2.7 Predation traces (praedichnia) -- 9.2.8 Equilibrium traces (equilibrichnia) -- 9.2.9 Escape traces (fugichnia) -- 9.2.10 Edifices constructed above substrate (aedificichnia) -- 9.2.11 Structures made for breeding purposes (calichnia) -- 9.3 Evaluation of the behavioural classification -- 9.4 Functional interpretation of trace fossils -- 9.4.1 Shafts and U-burrows -- 9.4.2 Burrow boundary -- 9.4.3 True branching. , 9.4.4 Nature of the fill -- 9.4.5 Spreite -- 9.4.6 Chemosymbiosis -- 9.5 Functional interpretations: conclusions -- 10 Trace fossil assemblages, diversity and facies -- 10.1 Terminology of trace fossil associations -- 10.1.1 Trace fossil assemblage -- 10.1.2 Ichnocoenosis -- 10.1.3 Suite -- 10.1.4 Ichnofacies -- 10.2 Diversity and ichnodiversity -- 10.2.1 Fossilization potential -- 10.2.2 Cross-cutting tiers -- 10.3 Tiering and ichnofabric -- 10.3.1 Modelling ichnofabric -- 10.3.2 Tiering and oxygen -- 10.4 Quantity of bioturbation -- 10.4.1 Judging the degree of bioturbation -- 10.4.2 Evaluating variation in quantity -- 10.5 Opportunistic and equilibrium ecology -- 10.5.1 Opportunist trace fossils -- 10.5.2 Climax trace fossils -- 10.6 Ichnoguilds -- 10.6.1 Ecological guilds and functional groups -- 10.6.2 Guilds in ichnology -- 10.6.3 Examples of ichnoguilds -- 10.7 Seilacherian or archetypal ichnofacies -- 10.7.1 The salinity barrier -- 10.7.2 Scoyenia ichnofacies -- 10.7.3 Glossifungites ichnofacies -- 10.7.4 Psilonichnus ichnofacies -- 10.7.5 Skolithos ichnofacies -- 10.7.6 Cruziana ichnofacies -- 10.7.7 Rusophycus ichnofacies? -- 10.7.8 Arenicolites ichnofacies -- 10.7.9 Zoophycos ichnofacies -- 10.7.10 Nereites ichnofacies -- 10.7.11 Fuersichnus ichnofacies? -- 10.7.12 Mermia ichnofacies? -- 10.8 Do we need archetypal ichnofacies? -- 11 Ichnofabric and trace fossils in core -- 11.1 Outcrop versus core -- 11.1.1 Advantages of core -- 11.1.2 Disadvantages of core -- 11.2 Trace fossils in core -- 11.2.1 Techniques for studying core -- 11.2.2 Seeing in two dimensions, thinking in three -- 11.2.3 Recognition of ichnotaxa -- 11.3 Some ichnotaxa as seen in core -- 11.3.1 Planolites, Palaeophycus and Macaronichnus -- 11.3.2 Phycosiphon incertum -- 11.3.3 Thalassinoides and Ophiomorpha -- 11.3.4 Teichichnus, Zoophycos and Rhizocorallium. , 11.3.5 Lost ichnogenera -- 11.4 Ichnofabric and ichnodiversity -- 12 Solving problems with trace fossils -- 12.1 Identifying stress factors -- 12.1.1 Oxygen -- 12.1.2 Salinity -- 12.1.3 Brackish water -- 12.1.4 Freshwater -- 12.2 Interplay with depositional processes -- 12.2.1 Slow and predictable -- 12.2.2 Event deposition -- 12.2.3 The colonization window -- 12.2.4 Tubular tempestites -- 12.3 Ichnology for sequence stratigraphy -- 12.3.1 Bounding surfaces -- 12.3.2 Sea-level changes -- 12.4 Trace fossil analysis using assemblages -- 12.5 Trace fossil analysis using ichnofabric -- 13 Conclusion -- References -- Glossary -- Index.
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  • 2
    Online Resource
    Online Resource
    San Diego :Elsevier,
    Keywords: Trace fossils. ; Sedimentology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (955 pages)
    Edition: 1st ed.
    ISBN: 9780444538147
    Series Statement: Issn Series ; v.Volume 64
    DDC: 560.43
    Language: English
    Note: Front Cover -- Developments in Sedimentology Volume 64 Trace Fossils as Indicators of Sedimentary Environments -- Copyright -- Dedication -- Contents -- Contributors -- Preface -- Chapter Reviewers: -- References -- Part I: History, Concepts, and Methods -- Chapter 1: History, Concepts, and Methods -- 1. Introduction -- 2. The Ages of Ichnology -- 3. From Paleolithic Times to Greco-Roman Antiquity -- 4. The Age of Naturalists -- 5. Seventeenth to Eighteenth Century: A Period of Transition -- 6. The Age of Fucoids -- 6.1. Emergence of the Paleobotanical Interpretation -- 6.2. Zoophytes and other Popular Interpretations -- 6.3. An Independent Ichnological Center: North America -- 6.4. The Rise of Vertebrate Ichnology -- 7. Period of Reaction -- 7.1. Fucoids versus Traces -- 7.2. The Period of Reaction: a Worldwide Phenomenon -- 8. Development of the Modern Approach -- 8.1. Decline of Ichnology -- 8.2. The Senckenberg Marine Institute -- 9. Modern Era -- 9.1. The Ethological Revolution -- 9.2. Early Modern Era: A New Impetus for the Study of Traces -- 9.3. The Golden Age of North American Ichnology -- 9.4. The Eastern Bloc During the Early Modern Era -- 9.5. Global Ichnology -- 10. Conclusions and Discussion -- 10.1. Evolution of the Interpretation of Trace Fossils -- 10.2. Modern Centers of Ichnological Research -- 10.3. Modern Trends in Ichnology as a Legacy from the Past -- 10.4. Disciplinary and Interdisciplinary Aspects in Ichnology -- 10.5. Ichnology as a Historical Product -- Acknowledgments -- References -- Chapter 2: Ichnotaxonomy: Finding Patterns in a Welter of Information -- 1. Introduction -- 2. Observing Trace Fossils -- 3. Describing Trace Fossils -- 4. Stratinomic Classifications -- 4.1. Substrate Consistency -- 4.2. Toponomic Classification -- 5. Biological Classifications -- 5.1. Phylogenetic Classification. , 5.2. Ecological Classifications -- 6. Ethological Classification -- 6.1. Resting Traces (Cubichnia) -- 6.2. Dwelling Traces (Domichnia) -- 6.3. Locomotion Traces (Repichnia) -- 6.4. Grazing Traces (Pascichnia) -- 6.5. Feeding Traces (Fodinichnia) -- 6.6. Farming Traces (Agrichnia) -- 6.7. Escape Traces (Fugichnia) -- 6.8. Brooding Traces (Calichnia) -- 6.9. Other Ethological Categories -- 6.10. Overlapping Functions -- 7. Systematic Classification -- 7.1. International Code of Zoological Nomenclature -- 7.2. A Brief History of Ichnotaxonomy -- 7.3. The Mechanics of Naming New Ichnospecies and Ichnogenera -- 7.4. Diagnosis and Description -- 7.5. Ichnofamilies and higher Ichnotaxa -- 7.6. Ichnosubspecies and other Subdivisions -- 7.7. Exceptional Cases -- 7.8. Beyond Systematics -- 8. Conclusions -- Acknowledgments -- References -- Chapter 3: Trace-Fossil Systematics -- 1. Introduction -- 2. Need of a Robust Ichnotaxonomy and Trace-Fossil Classification -- 3. A Newly Proposed Nomenclature Key -- 3.1. Purpose and Advantages -- 3.2. Structure of the Key and Challenges -- 3.3. Data Analysis -- 4. Way Forward -- 5. Conclusions -- Acknowledgments -- References -- Chapter 4: The Ichnofacies Paradigm -- 1. Introduction -- 1.1. Rise of the Ichnofacies Concept -- 1.2. Variation in the Use of Ichnofacies -- 2. Neoichnological Underpinning of Seilacherian Ichnofacies -- 3. The Seilacherian Ichnofacies -- 4. The Role of Seilacherian Ichnofacies -- 5. Conclusions -- Acknowledgments -- References -- Chapter 5:The Ichnofabric Concept -- 1. Introduction -- 2. Early Development of the Concept -- 3. A Controversial Concept? -- 4. Importance of Ichnofabric -- 5. Conclusions -- Acknowledgments -- References -- Chapter 6: Sequence Stratigraphy -- 1. Introduction -- 1.1. Nomenclature, Key Bounding Surfaces, and Systems Tracts. , 1.2. Recognition of Trace-Fossil Omission Suites -- 1.3. Autogenic versus Allogenic Discontinuities -- 1.4. Facies and Ichnofacies Juxtaposition -- 2. Overview of Sequence-Stratigraphic Frameworks -- 2.1. Siliciclastic Responses to RSL Changes -- 2.2. Carbonate Responses to RSL Changes -- 3. Ichnological Applications to Sequence Stratigraphy (Case Studies) -- 3.1. Incised Shorefaces, Viking Formation, Alberta, Canada -- 3.1.1. Shorefaces of the FSST and LST -- 3.1.2. Incised Shorefaces of the TST -- 3.2. Estuarine Incised-Valley Fill, Viking Formation, Alberta, Canada -- 3.2.1. Stratigraphic Discontinuities of the Viking Incised Valleys -- 3.2.2. Juxtaposed Facies of the Viking Incised Estuarine Valleys -- 3.3. Carbonate Platform, Khuff Formation, Middle East -- 4. Conclusions -- Acknowledgments -- References -- Chapter 7: Ichnostratigraphy -- 1. Introduction -- 2. Continental Environments -- 3. Marginal-Marine Environments -- 4. Shallow-Marine Environments -- 4.1. Proterozoic/Cambrian Boundary -- 4.2. Cruziana Stratigraphy -- 4.3. Arthrophycid Stratigraphy -- 5. Deep-Marine Environments -- 6. Conclusions -- Acknowledgments -- References -- Chapter 8: Microbioerosion -- 1. Introduction -- 2. The Methodological Toolkit -- 2.1. Thin Sectioning -- 2.2. Vacuum Cast-Embedding -- 2.3. Micro-CT -- 3. Microbioeroding Biota and Their Traces -- 3.1. Cyanobacteria -- 3.2. Chlorophytes and Rhodophytes -- 3.3. Fungi -- 3.4. Other Chemotrophs -- 4. Paleoenvironmental Signatures -- 4.1. Paleobathymetry -- 4.2. Paleothermometry -- 4.3. Paleosalinity -- 4.4. Paleotrophodynamics -- 5. Conclusions -- Acknowledgments -- References -- Chapter 9: Methodology and Techniques -- 1. Introduction -- 2. Field Techniques -- 2.1. Outcrop Observations -- 2.2. Peels, Molds, and Casts -- 2.3. Core Sampling of Surface Sediment. , 2.4. Imaging and Analysis of Dinosaur, Bird, and Mammal Tracks -- 2.5. Building Stones -- 2.6. Quantification of Bioturbation -- 3. Laboratory Techniques -- 3.1. Sectioning and Enhancement of Visibility -- 3.2. Thin Sectioning -- 3.3. Optical Microscopy -- 3.4. Scanning Electron Microscopy -- 3.5. X-ray Radiography -- 3.6. Computer-Aided Tomography -- 3.7. Polymer-Resin Casting -- 4. Borehole Cores and Images -- 4.1. Well Cores -- 4.2. Borehole Images -- 5. Statistical Analysis -- 6. Computer Modeling -- 7. Conclusions -- Acknowledgment -- References -- Chapter 10: Marine Invertebrate Neoichnology -- 1. Introduction -- 2. Major Infaunal Groups and their Common Traces -- 2.1. Vermiform Animals: Annelids, Hemichordates, and Nemerteans -- 2.2. Bivalves -- 2.3. Crustaceans -- 2.4. Echinoderms -- 2.5. Sponges and Sea Anemones -- 3. Environmental Stresses and their Impact of Neoichnology -- 4. Summary and Conclusions -- Acknowledgments -- References -- Part II: Continental and Glacial Systems -- Chapter 11: Glacial Environments -- 1. Introduction -- 2. Ecological and Environmental Constraints in Glacial Settings -- 2.1. Environmental Stress in Glacial Settings -- 2.2. Postglacial Colonization of Terrestrial Environments -- 2.3. Postglacial Colonization of Freshwater Environments -- 2.4. Glacial and Postglacial Colonization of Marine Environments -- 3. Trace-Fossil Assemblages from Ancient Glacial Environments -- 3.1. Bioturbated Deposits in Glacial Settings -- 3.2. Glaciolacustrine Trace-Fossil Assemblages -- 3.3. Ichnocoenoses and Ichnofacies of Glaciolacustrine Rhythmites -- 3.4. Glaciomarine Trace-Fossil Assemblages -- 3.5. Ichnocoenoses and Ichnofacies of Glaciomarine Rhythmites -- 4. Ichnology of Recent Glacial Environments -- 5. Concluding Remarks and Perspectives -- Acknowledgments -- References -- Chapter 12: Fluvial Environments -- 1. Introduction. , 2. Approach -- 3. Ichnofacies -- 3.1. Scoyenia Ichnofacies -- 3.2. Coprinisphaera Ichnofacies -- 3.3. Celliforma Ichnofacies -- 3.4. Termitichnus Ichnofacies -- 3.5. Mermia Ichnofacies -- 3.6. Skolithos Ichnofacies -- 3.7. Grallator Ichnofacies -- 3.8. Batrachichnus Ichnofacies -- 3.9. Additional Vertebrate Ichnofacies -- 3.10. Potential Ichnofacies from Paleosols -- 4. Application of Ichnofacies and Ichnofabrics to the Interpretation of Fluvial Sedimentary Facies -- 4.1. Composite Ichnofacies -- 4.2. Stratigraphical Applications -- 4.3. Ichnofabric Studies of Fluvial Successions -- 5. Depositional Environments -- 5.1. Comparison of Channel-Belt and Floodplain Trace-Fossil Assemblages -- 5.2. Contrasting Trace-Fossil Preservation in Channel-Belt and Overbank Facies -- 5.3. Trace Fossils in Channel-Belt Deposits -- 5.4. Floodplain Subenvironments -- 5.5. Comparison of Trace-Fossil Assemblages from Different River Systems -- 6. Conclusions -- Acknowledgments -- References -- Chapter 13: Lacustrine Environments -- 1. Introduction -- 2. Ichnology -- 2.1. Biogenic Activity and Structures in Lake Basins -- 2.2. The Ichnofacies Model in Lake Basins -- 2.2.1. The Mermia Ichnofacies -- 2.2.2. The continental Skolithos Ichnofacies -- 2.2.3. The Scoyenia Ichnofacies -- 2.2.4. Terrestrial Trace-Fossil Assemblages -- 3. An Integrated Lake-Type Basin and Lacustrine Ichnology Model -- 3.1. Overfilled Lake-Type Basins -- 3.2. Balanced-Fill Lake-Type Basins -- 3.3. Underfilled Lake-Type Basins -- 4. Conclusions -- Acknowledgments -- References -- Chapter 14: Eolian Environments -- 1. Introduction -- 2. Ichnofacies -- 2.1. Ichnology in Eolian Environments -- 2.2. Ichnofacies in Eolian Paleoenvironments -- 3. Depositional Environments -- 3.1. Trace Fossils in Coastal Dunes -- 3.2. Trace Fossils in Inland Ergs -- 3.3. Uniformitarian Approach to Eeolian Ichnofacies. , 3.4. Paleoclimatic Significance of Eolian Ichnofacies.
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  • 3
    Keywords: Lehrbuch Handbuch Standardwerk ; trace fossils ; Lehrbuch ; Spurenfossil ; Ichnologie ; Spurenfossil
    Type of Medium: Book
    Pages: XVI, 347 Seiten , 188 Illustrationen, Diagramme
    ISBN: 9783540629443 , 3540629440
    Uniform Title: Trace fossils
    RVK:
    RVK:
    RVK:
    Language: German
    Note: Literaturverzeichnis: Seiten 293-323
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  • 4
    Book
    Book
    London [u.a.] : Unwin Hyman
    Keywords: trace fossils ; Lehrbuch ; Spurenfossil ; Paläobiologie ; Taphonomie ; Spurenfossil ; Paläobiologie ; Taphonomie ; Spurenfossil
    Type of Medium: Book
    Pages: XI, 280 S. , Ill., graph. Darst.
    Edition: 1. publ.
    ISBN: 0044453035 , 0044456867
    Series Statement: Special topics in palaeontology 3
    DDC: 560
    Language: English
    Note: Includes bibliographical references (p. 245-265) and index
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  • 5
    facet.materialart.
    Unknown
    PANGAEA
    In:  Institute of Paleontology, Friedrich-Alexander-Universität, Erlangen-Nürnberg | Supplement to: Bromley, Richard G; Beuck, Lydia; Ruggiero, Emma Taddei (2008): Endolithic sponge versus terebratulid brachiopod, Pleistocene, Italy: accidental symbiosis, bioclaustration and deformity. In: Wisshak M, Tapanila L (eds.), 2008, Current Developments in Bioerosion, Springer, Berlin, Heidelberg, 361-368, https://doi.org/10.1007/978-3-540-77598-0
    Publication Date: 2023-02-24
    Description: The dorsal valve of a Pleistocene terebratulid brachiopod, Terebratula scillae Seguenza, 1871, has developed a malignant cyst due to colonization in vivo by an endolithic sponge.This trace fossil is a compound boring and bioclaustration structure, representing a boring that has grown in unison with the growth of the cyst. The brachiopod has grown to adult size and growthlines indicate that it was colonised by the sponge when about half grown. Malformation of the shell may not have caused the death of the brachiopod and the sponge does not appear to have outlived its host; both symbionts seem to have died more or less simultaneously. This minus-minus relationship of two symbionts is considered to be a case of 'accidental symbiosis'.
    Keywords: Calabria, Italy; Description; File name; File size; Gallina; HAND; HERMES; Hotspot Ecosystem Research on the Margins of European Seas; ORDINAL NUMBER; Sampling by hand; Uniform resource locator/link to raw data file
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 34 (1987), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Although it is a pelagic sediment, fine-grained calcareous ooze may be mobilized prior to general lithification and redeposited as allochthonous units. Numerous occurrences of allochthonous chalk have been reported in recent years, having been recognized by large-scale bedding features seen in outcrop. Smaller-scale internal features, such as contorted laminae, and larger features, such as smeared burrows and imbricated flint nodules, attest to a significant amount of soft-sediment deformation and synsedimentary slumping in European chalk sections of Late Cretaceous age.Truly autochthonous chalks contain complex, tiered ichnofabrics and in some cases exhibit a diagenetic nodular fabric that is undisturbed by transport. In some situations, such as stagnant water conditions, autochthonous chalks may exhibit primary lamination, although this is very uncommon in European chalk sequences.Different types of redepositional processes produce an array of varied allochthonous fabrics. Glide and slump units, for example, contain internal deformational features produced during sliding. Ooze flow causes plastic deformation of chalk units, internally as well as externally. Resuspension and fluid flow of chalk sediment produces a deposit having a totally new fabric, such as a conglomerate composed of detrital chalk clasts.In this paper, typical macroscopic, sedimentary fabric types are illustrated, and the means of identifying them are discussed in terms of bioturbation features, in situ diagenetic nodules versus detrital clasts, physical deformation structures and development of flints.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    International journal of earth sciences 82 (1993), S. 276-280 
    ISSN: 1437-3262
    Keywords: Bioerosion ; Ichnofacies ; Sea-level change ; Burial rates ; Pliocene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract In bioerosion, as in trace fossils as a whole, deeply emplaced structures have greater survival value than shallow structures. That is to say, tiering (the relative depth to which rasping, etching and boring organisms penetrate their substrate) is of paramount importance for the preservation potential of individual trace fossils. An Entobia ichnofacies is established for trace fossil assemblages dominated by deep tier borings and arising from long-term bioerosion, such as occurs on sediment-free submarine cliffs or hardgrounds. A Gnathichnus ichnofacies comprises assemblages containing all tiers, including superficial sculptures produced by radulation that have very little preservation potential. Such assemblages occur in short-term bioerosion situations as on shell surfaces and hardgrounds buried early by sedimentation.
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2018-07-19
    Description: The Plio–Pleistocene warm-temperate carbonate deposits along the SE coast of Rhodes (Greece) formed on a highly structured island ‘shelf’ during a major transgression-regression cycle, which reached bathyal depth during maximal transgression. The complex palaeobathymetry exhibits many characteristics of submarine canyons, especially of so-called ‘blind’ or ‘headless’ canyons — a canyon type, which is especially common in the modern Mediterranean. This study presents the palaeoenvironmental evolution of one of these canyons, which is today represented by the Lardos valley, eastern central Rhodes. The studied section comprises the middle Pleistocene (900–300 ka) and describes a shallowing-upward trend from bathyal to circalitoral depth. Thin fossiliferous debris flow layers document turnovers and abundance changes in fauna and floral of hard-bottom communities, which developed on the adjacent basement slopes and highs. The comparison of the obtained results with other studies from the southeastern coast of Rhodes suggests a high degree of diachroneity of lithological boundaries of these Plio–Pleistocene deposits, which can be best explained by progressive infill of small depocentres located at different altitude levels. Hence, lithological changes are interpreted to be time-transgressive from distal (low altitude) to proximal (high altitude) during transgression while time-transgressive from proximal to distal during regression. Consequently, the best chronostratigraphic correlation horizon is the surface of maximal transgression. The most probable age for this surface could be estimated at 1.1 to 0.8 Ma, 0.2–0.5 Ma younger than previous estimates. Furthermore, the current lithostratigraphic schemes for the Plio–Pleistocene deposits of southeastern Rhodes are reviewed and revised. Highlights ► The studied outcrop documents the uplift of Rhodes during the middle Pleistocene. ► The Plio–Pleistocene stratigraphy of Rhodes is reviewed and revised. ► The studied sedimentary unit is interpreted as submarine canyon deposit. ► Diachroneity of canyon deposits is most likely due to different altitudes of small depocentres.
    Type: Article , PeerReviewed
    Format: text
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  • 9
    Publication Date: 2012-06-01
    Description: Widespread microbial mats and the absence of significant bioturbation resulted in a poorly developed mixed layer and extensive cohesive substrates during the Ediacaran-Cambrian transition. Large nonbiomineralized arthropod carapaces overprinted with trails, interconnected burrow systems, narrow-caliber structures with dendritic terminations, and annulated burrows are abundant in the Early Cambrian Sirius Passet Lagerstätte (Greenland). Taphonomic controls were partially responsible for the pronounced association of these structures and carapaces, but ecologic conditions are envisioned as playing a significant role. Although some trace fossils (e.g., annulated structures) may be related to scavenging and/or deposit feeding, morphologic evidence suggests that this is not always the case. Interconnected burrow systems provide evidence for re-use of structures, suggesting grazing on or farming of bacteria. Sulfur bacteria were probably abundant in Cambrian sediments, requiring a source of sulfur or sulfide and limited quantities of oxygen. Anoxic sediment provided a source of hydrogen sulfide, whereas burrow outlets connected to the oxygenated sediment-water interface. Carcasses and molds of nonbiomineralized organisms may have acted as attractors, supporting a community of small invertebrates. Carapaces created a sharp boundary, further decreasing oxygen diffusion into the sediment. This steep oxygen gradient at the organic surface of the carapace promoted the growth of sulfur bacteria that could have served as the primary food for small macrofauna and meiofauna.
    Print ISSN: 0091-7613
    Electronic ISSN: 1943-2682
    Topics: Geosciences
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