Perisphinctaceae

Berriasella privasensis, from here.

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 2^nd 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.