Belongs within: Aptychophora.
Contains: Aspidoceratinae.
The Perisphinctaceae are a group of ammonoids known from the middle Jurassic to the early Cretaceous, characterised by evolute conches with sharp-branched ribs and complexly differentiated suture lines. The morphology of the aptychus is known for several families in the group, with the majority possessing a praestriaptychus with weak concentric striae. This aptychal morphology is probably ancestral for the Perisphinctaceae, with the granular granulaptychus of Perisphinctidae and smooth laevaptychus of Aspidoceratidae representing derived modifications (Enseger & Kaup 2002).
<==Perisphinctaceae
| i. s.: Leptosphinctinae EK02
| Zigzagiceratinae EK02
| Proplanultinae EK02
| Pseudoperisphinctinae EK02
|–Morphoceratidae EK02
|–Reineckeiidae EK02
|–Oosterellidae EK02
|–Craspedites SY85 [Craspeditidae EK02]
| |–C. nodiger SY85
| |–C. okensis H75
| |–C. subditus SY85
| `–C. taimyrensis SY85
|–Berriasellidae EK02
| |–Hemispiticeras H79
| |–Andiceras H79
| `–Berriasella Uhlig 1905 EK02
| |–B. akiyamae K79
| |–B. (Pseudargentinoceras) boissieri K79
| |–B. gallica K79
| |–B. grandis K79
| |–B. privasensis H79
| |–B. richteri H79
| `–B. storri SY85
|–Aspidoceratidae EK02
| |–Aspidoceratinae EK02
| |–Peltoceratinae EK02
| | |–Peltoceras trifidum (Quenstedt 1887) [=Ammonites athleta trifidus] CDH04
| | |–Epipeltoceras H79
| | `–Gregoryceras Spath 1924 H79, CDH04
| | `–*G. transversarium (Quenstedt 1847) [=Ammonites transversarius] CDH04
| `–Simoceratinae EK02
| |–Simoceras Zittel 1870 EK02
| | `–S. volanense H79
| `–Hybonoticeras Breistroffer 1947 EK02
| |–H. beckeri H79
| `–H. hybonotum H79
|–Kosmoceratidae EK02
| |–Garantiana Mascke 1907 EK02
| |–Toricellites approximatus Buckman 1933 P87
| |–Seymourites H79
| |–Zugokosmoceras H79
| |–Sigaloceras Hyatt 1900 EK02
| | `–S. calloviense P87
| |–Kosmoceras CDH04
| | |–K. ‘compressum’ (Quenstedt 1846) (see below for synonymy) CDH04
| | |–K. ornatum CDH04
| | `–K. ‘rotundum’ (Quenstedt 1856) (preoc.) [incl. *Granulaptychus calloviensis Trauth 1927] EK02
| `–Kepplerites Neumayr & Uhlig 1892 [Gowericeratinae] P87
| |–K. rosenkrantzi Spath 1932 P87
| |–K. stephanoides P87
| |–K. svalbardensis P87
| |–K. traillensis P87
| |–K. tychonis [incl. K. t. var. fasciculata] P87
| `–K. vardekloeftensis P87
`–Perisphinctidae EK02
| i. s.: Cobbanites P87
| Choffatia Siemiradzki 1898 P87
| Idoceras H79
| Nebrodites H79
| Pectinatites H79
| Pavlovia H79
| Glaucolithites H79
| Pomerania H79
| Pictonia H79
|–Dorsoplanites H79 [Dorsoplanitinae EK02]
| `–D. panderi H02
|–Lithacoceras Hyatt 1900 [Ataxioceratidae] EK02
| `–L. fasciferum Neumayr 1873 EK02
|–Aulacostephanus H79 [Aulacostephaniinae EK02]
| |–A. autissiodorensis H79
| `–A. pseudomutabilis H79
|–Virgatitinae EK02
| |–Virgatites H79
| `–Zaraiskites H79
|–Perisphinctinae EK02
| |–Orthosphinctes Schindewolf 1925 EK02
| `–Perisphinctes Waagen 1869 EK02
|–Virgatosphinctinae EK02
| |–Subplanites Spath 1925 EK02
| `–Subplanitoides Zeiss 1968 EK02
`–Pseudovirgatitinae H79
|–Usseliceras H79
`–Franconites H79
Kosmoceras ‘compressum’ (Quenstedt 1846) [=Ammonites ornatus compressus nec A. compressus de Blainville 1840 nec A. radians compressus Quenstedt 1845 nec A. valdani compressus Quenstedt 1845] CDH04
*Type species of generic name indicated
REFERENCES
[CDH04] Callomon, J. H., D. T. Donovan & M. K. Howarth. 2004. F. A. Quenstedt’s trinomial nomenclature of Jurassic ammonites. Palaeontology 47 (4): 1063–1073.
[EK02] Engeser, T., & H. Keupp. 2002. Phylogeny of the aptychi-possessing Neoammonoidea (Aptychophora nov., Cephalopoda). Lethaia 35: 79–96.
[H75] Häntzschel, W. 1975. Treatise on Invertebrate Paleontology pt W. Miscellanea Suppl. 1. Trace Fossils and Problematica 2nd ed. The Geological Society of America: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).
[H02] Haubold, H. 2002. Literaturbericht: Ichthyosaurier und Sauropterygier. Zbl. Geol. Paläont. Teil II 5-6: 367–403.
[H79] Hölder, H. 1979. Jurassic. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A390–A417. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).
[K79] Kauffman, E. G. 1979. Cretaceous. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A418–A487. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).
[P87] Poulton, T. P. 1987. Zonation and correlation of Middle Boreal Bathonian to Lower Callovian (Jurassic) ammonites, Salmon Cache Canyon, Porcupine River, northern Yukon. Geological Survey of Canada—Bulletin 358: 1–155.
[SY85] Sha J.-G. & Yuan F.-S. 1985. Buchia fauna from Dong’anzhen Formation near Dong’an of Raohe County, Heilongjiang. Acta Palaeontologica Sinica 24 (6): 651–662.