Note: Fossils and Strata -- Dienerian (Early Triassic) ammonoids from the Northern Indian Margin -- Contents -- Present work -- Definitions of stages and substages -- Biochronology: the Unitary Association Method and terminology -- References -- Griesbachian and Dienerian (Early Triassic) ammonoids from the Salt Range, Pakistan -- Contents -- Introduction -- Geological framework -- Stratigraphy -- Lithology and ammonoid preservation -- Present work -- Biostratigraphy -- General subdivisions -- Griesbachian ammonoid faunas -- Hypophiceras cf. H. gracile Regional Zone -- Ophiceras connectens Regional Zone -- Ophiceras sakuntala Regional Zone -- Early Dienerian ammonoid faunas -- Gyronites dubius Regional Zone -- Gyronites plicosus Regional Zone -- Gyronites frequens Regional Zone -- Middle Dienerian ammonoid faunas -- Ambites atavus Regional Zone -- Ambites radiatus Regional Zone…… -- Ambites discus Regional Zone -- Ambites superior Regional Zone…… -- Ambites lilangensis Regional Zone… -- Late Dienerian ammonoid faunas -- Vavilovites cf. V. sverdrupi Regional Zone -- Kingites davidsonianus Regional Zone -- Koninckites vetustus Regional Zone -- Awanites awani Regional Zone -- Conclusion -- Systematic palaeontology by D. Ware and H. Bucher -- Classification -- The population approach: intraspecific variability and convergences -- Suture lines -- Ontogeny and growth allometry -- Systematic descriptions -- Superfamily Xenodiscaceae Frech, 1902 -- Family Xenodiscidae Frech, 1902 -- Genus Hypophiceras Trümpy, 1969 -- Hypophiceras aff . H. gracile (Spath, 1930) -- Superfamily Meekocerataceae Waagen, 1895 -- Family Ophiceratidae Arthaber, 1911 -- Genus Ophiceras Griesbach, 1880 -- Ophiceras connectens Schindewolf, 1954 -- Ophiceras sakuntala Diener, 1897 -- Genus Kyoktites n. gen -- Kyoktites hebeiseni n. sp -- Kyoktites cf. H. hebeiseni n. sp. , Genus Ghazalaites n. gen -- Ghazalaites roohii n. sp -- Ophiceratidae? n. gen. A n. sp. A -- Ophiceratidae? gen. et sp. indet -- Family Gyronitidae Waagen, 1895 -- Genus Gyronites Waagen, 1895 -- Gyronites frequens Waagen, 1895 -- Gyronites dubius (von Krafft , 1909) -- Gyronites rigidus (Diener, 1897) -- Gyronites plicosus Waagen, 1895 -- Gyronites sitala (Diener, 1897) -- Gyronites schwanderi n. sp -- Genus Ambites Waagen, 1895 -- Ambites discus Waagen, 1895 -- Ambites atavus (Waagen, 1895) -- Ambites tenuis n. sp -- Ambites radiatus (Brühwiler, Brayard, Bucher & -- Guodun, 2008) -- Ambites bojeseni n. sp -- Ambites subradiatus n. sp -- Ambites? sp. indet -- Ambites superior (Waagen, 1895) -- Ambites lilangensis (von Krafft, 1909) -- Ambites bjerageri n. sp -- Ambites cf. A. impressus (Waagen, 1895) -- Family Paranoritidae Spath, 1930 -- Genus Vavilovites Tozer, 1971 -- Vavilovites cf. V. sverdrupi (Tozer, 1963) -- Genus Koninckites Waagen, 1895 -- Koninckites vetustus Waagen, 1895 -- Koninckites khoorensis (Waagen, 1895) -- Genus Radioceras Waterhouse, 1996 -- Radioceras truncatum (Spath, 1934) -- Genus Pashtunites n. gen -- Pashtunites kraffti (Spath, 1934) -- Genus Awanites n. gen -- Awanites awani n. gen. et n. sp -- Genus Koiloceras Brühwiler & -- Bucher, 2012 -- Koiloceras sahibi n. sp -- Family Flemingitidae Hyatt, 1900 -- Genus Xenodiscoides Spath, 1930 -- Xenodiscoides? sp. indet -- Genus Shamaraites Shigeta & -- Zakharov, 2009 -- Shamaraites? sp. indet -- Family Proptychitidae Waagen, 1895 -- Genus Bukkenites Tozer, 1994 -- Bukkenites sakesarensis n. sp -- Genus Proptychites Waagen, 1895 -- Proptychites lawrencianus (de Koninck, 1863) sensu Waagen, 1895 -- Proptychites oldhamianus Waagen, 1895 -- Proptychites wargalensis n. sp -- Proptychites ammonoides Waagen, 1895 -- Proptychites cf. P. pagei Ware, Jenks, Hautmann &. , Bucher, 2011 -- Family Mullericeratidae Ware, Jenks, Hautmann & -- Bucher, 2011 -- Genus Mullericeras Ware, Jenks, Hautmann & -- Bucher, 2011 -- Mullericeras spitiense (von Krafft , 1909) -- Mullericeras shigetai n. sp -- Mullericeras indusense n. sp -- Mullericeras niazii n. sp -- Genus Ussuridiscus Shigeta & -- Zakharov, 2009 -- Ussuridiscus varaha (Diener, 1895) -- Ussuridiscus ensanus (von Krafft, 1909) -- Ussuridiscus ventriosus n. sp -- Ussuridiscus ornatus n. sp -- Ussuridiscus? sp. indet -- Family incertae sedis -- Genus Kingites Waagen, 1895 -- Kingites davidsonianus (de Koninck, 1863) -- Kingites korni Brühwiler, Ware, Bucher, Krystyn & -- Goudemand, 2010a -- Superfamily Sagecerataceae Hyatt, 1884 -- Family Hedenstroemiidae Hyatt, 1884 -- Genus Clypites Waagen, 1895 -- Clypites typicus Waagen, 1895 -- Genus Pseudosageceras Diener, 1895 -- Pseudosageceras simplelobatum n. sp -- Superfamily incertae sedis -- Family incertae sedis -- Genus Subacerites n. gen -- Subacerites friski n. sp -- Gen. et sp. indet -- Acknowlegdements -- References -- Plates 1 to 33 -- Dienerian (Early Triassic) ammonoids from Spiti, Himachal Pradesh, India -- Contents -- Introduction -- Geological framework -- Stratigraphy -- Lithology and ammonoid preservation -- Present work -- Biostratigraphy -- Early Dienerian ammonoid faunas -- Gyronites dubius Regional Zone -- Gyronites plicosus Regional Zone -- Gyronites frequens Regional Zone -- Middle Dienerian ammonoid faunas -- Ambites atavus Regional Zone -- Ambites bojeseni Regional Zone -- Ambites discus Regional Zone -- Ambites lilangensis Regional Zone -- Late Dienerian ammonoid faunas -- Vavilovites meridialis Regional Zone -- Kingites davidsonianus Regional Zone -- Koninckites vetustus Regional Zone -- Conclusion -- Systematic palaeontology by D. Ware and H. Bucher -- Family Ophiceratidae Arthaber, 1911. , Genus Ghazalaites Ware & -- Bucher, 2018b -- Ghazalaites roohii Ware & -- Bucher, 2018b -- Family Gyronitidae Waagen, 1895 -- Genus Gyronites Waagen, 1895 -- Gyronites frequens Waagen, 1895 -- Gyronites dubius (von Krafft , 1909) -- Gyronites plicosus Waagen, 1895 -- Gyronites sitala (Diener, 1897) -- Gyronites levilatus n. sp -- Gyronites bullatus n. sp -- Gyronites schwanderi Ware & -- Bucher, 2018b -- Genus Ambites Waagen, 1895 -- Ambites discus Waagen, 1895 -- Ambites atavus (Waagen, 1895) -- Ambites tenuis Ware & -- Bucher, 2018b -- Ambites bojeseni Ware & -- Bucher, 2018b -- Ambites radiatus (Brühwiler, Brayard, Bucher & -- Guodun, 2008) -- Ambites nyingmai n. sp -- Ambites subradiatus Ware & -- Bucher, 2018b -- Ambites cf. A. frechi (Tozer, 1994) -- Ambites lilangensis (von Krafft , 1909) -- Family Paranoritidae Spath, 1930 -- Genus Vavilovites Tozer, 1971 -- Vavilovites meridialis n. sp -- Genus Koninckites Waagen, 1895 -- Koninckites vetustus Waagen, 1895 -- Koninckites khoorensis (Waagen, 1895) -- Genus Radioceras Waterhouse, 1996 -- Radioceras truncatum (Spath, 1934) -- Genus Pashtunites Ware & -- Bucher, 2018b -- Pashtunites kraffti (Spath, 1934) -- Family Proptychitidae Waagen, 1895 -- Genus Proptychites Waagen, 1895 -- Proptychites lawrencianus (de Koninck, 1863) sensu Waagen, 1895 -- Proptychites oldhamianus Waagen, 1895 -- Proptychites wargalensis Ware & -- Bucher, 2018b -- Proptychites ammonoides Waagen, 1895 -- Proptychites cf. P. pagei Ware, Jenks, Hautmann & -- Bucher, 2011 -- Genus Bukkenites Tozer, 1994 -- Bukkenites sakesarensis Ware & -- Bucher in 2018b -- Genus Dunedinites Tozer, 1963 -- Dunedinites cf. D. magnumbilicatus (Kiparisova, 1961) -- Family Mullericeratidae Ware, Jenks, Hautmann & -- Bucher, 2011 -- Genus Mullericeras Ware, Jenks, Hautmann & -- Bucher, 2011. , Mullericeras spitiense (von Krafft, 1909) -- Mullericeras shigetai Ware & -- Bucher, 2018b -- Mullericeras niazii Ware & -- Bucher, 2018b -- Genus Ussuridiscus Shigeta & -- Zakharov, 2009 -- Ussuridiscus varaha (Diener, 1895) -- Ussuridiscus ensanus (von Krafft , 1909) -- Ussuridiscus ornatus Ware & -- Bucher, 2018b -- Ussuridiscus ventriosus Ware & -- Bucher, 2018b -- Family incertae sedis -- Genus Kingites Waagen, 1895 -- Kingites davidsonianus (de Koninck, 1863) -- Kingites korni Brühwiler, Ware, Bucher, Krystyn & -- Goudemand, 2010 -- Superfamily Sagecerataceae Hyatt, 1884 -- Family Hedenstroemiidae Hyatt, 1884 -- Genus Pseudosageceras Diener, 1895 -- Pseudosageceras simplelobatum Ware & -- Bucher, 2018b -- Acknowledgements -- References -- Plates 1 to 13 -- EULA.