Oppeliidae

Glochiceras nimbatum, from Ammoniten.org.

Belongs within: Aptychophora.
Contains: Aconeceratinae.

The Oppeliidae are an assemblage of ammonites known from the Lower Bajocian of the Middle Jurassic to the Upper Albian of the Lower Cretaceous (Wright et al. 1996).

Characters (from Wright et al. 1996): Typically compressed to oxycone; involute; strongly dimorphic. Macroconchs with distant, falcoid to falcate primary ribbing becoming smooth, simple aperture, and dense, complex sutures with deeply incised lobes arranged regularly on a straight baseline in decreasing length from external to umbilical edges. Microconchs tending to genicular coiling on adult body chamber, with highly developed, often spatulate, lappets. Sutures generally regular but complex.

<==Oppeliidae [Oppelidae]EK02
| i. s.: Hildoglochiceras kobelliH79
|--Clydoniceratinae [Thamboceratinae]DCH81
| |--Clydoniceras discusC79
| `--Thamboceras Douvillé 1916DCH81
|--+--Distichoceras Munier-Chalmas 1892EK02 [Bonarelliinae, DistichoceratinaeDCH81]
| `--HecticoceratinaeDCH81
| |--Hecticoceras Bonarelli 1893EK02
| `--Prohecticoceras Spath 1928P87
| `--P. retrocostatumC79
|--Oppeliinae [Bradfordiinae]EK02
| |--Oecotraustes Waagen 1869EK02
| |--Praeoppelia oppeliiformisWCH96, DCH81
| |--Amblyoxyites amblysDCH81
| |--Bradfordia Buckman 1910EK02
| | `--B. liomphala [incl. B. costata, B. etheridgii Buckman 1882, B. inclusa Buckman 1910]DCH81
| |--Oppelia Waagen 1869EK02
| | |--O. praeradiataDCH81
| | `--O. subradiataW81
| `--Oxycerites Rollier 1909P87
| |--O. aspidoidesP87 [=Oppelia (Oxycerites) aspidoidesSB93]
| |--O. birkelundi Poulton 1987P87
| |--O. chinitnana Imlay 1953 [=Oppelia (Oxycerites) chinitnana]P87
| |--O. jugatusP87
| |--O. (Liroxyites) kellumi Imlay 1961 [=Oppelia (L.) kellumi]P87
| `--O. undatus Ershova & Meledina 1968P87
`--+--+--OchetoceratinaeWCH96
| | |--CymacerasH79
| | |--Strebliticeras Hölder 1955WCH96
| | `--Ochetoceras Haug 1885EK02
| | `--O. zioS89
| `--+--AconeceratinaeWCH96
| `--Streblitinae [Streblitidae]DCH81
| |--Streblites tenuilobatusZ81
| |--Uhligites Kilian 1913WCH96
| | `--*U. kraffti (Uhlig 1903) [=Streblites kraffti]WCH96
| |--Substreblites Spath 1925WCH96
| | `--*S. zonarius (Oppel 1865) [=Ammonites zonarius]WCH96
| |--Cyrtosiceras Hyatt 1900 [=Meunieria Gregorio 1922 non Kieffer 1904]WCH96
| | `--*C. macrotelus (Oppel 1865) [=Ammonites macrotelus, *Meunieria macrotelus]WCH96
| |--Bornhardticeras Böhm & Riedel 1933WCH96
| | `--*B. discoidale (Müller 1900) [=Placenticeras discoidale]WCH96
| |--Neochetoceras Spath 1925EK02
| | |--N. darwiniWCH96
| | `--N. steraspisZ81
| `--SemiformicerasH79
| |--S. fallauxiWCH96
| `--S. semiformeWCH96
`--+--Taramelliceratinae [Mazapilitinae, Neumayriceratinae]DCH81
| |--Fontanesiella Spath 1925EK02
| |--MetahaplocerasWCH96
| |--CorycerasDCH81
| |--Submazapilites Cantu 1963DCH81
| `--Taramelliceras del Campana 1904EK02 [incl. MazapilitesDCH81]
| |--T. kiderleniDCH81
| `--T. strombeckiZ81
`--HaploceratidaeWCH96
|--Pseudolissoceras Spath 1925 [incl. Laevilamellaptychus Trauth 1936]EK02
|--Poecilomorphus [incl. Micropoecilomorphus]DCH81
|--Neolissoceras Spath 1923EK02
| |--*N. grasianum (Orbigny 1841)WCH96 [=Ammonites grasianusWCH96, Haploceras (Neolissoceras) grasianumP93]
| |--‘Aptychus beyrichi var.’ fractocostataWCH96
| `--N. aberransWCH96
|--Hypolissoceras Breistroffer 1947 (see below for synonymy)WCH96
| |--*H. carachtheis (Zeuschner 1846) [=Ammonites carachtheis, Haploceras carachtheis]WCH96
| |--‘Ammonites’ elimatus Oppel 1865 [=*Haploceras elimatum, *Neoglochiceras elimatus]WCH96
| |--‘Haploceras’ leiosomaDCH81
| `--‘Haploceras’ subclimatumP93
`--Glochiceras Hyatt 1900 [Glochiceratinae]EK02
|--*G. nimbatumDCH81
|--G. cornutumZ81
|--G. crenosumZ81
|--G. fialarZ81
|--G. hyacinthumZ81
`--G. lithographicumZ81

Hypolissoceras Breistroffer 1947 [incl. Haploceras Zittel 1870 non Saemann 1853, Neoglochiceras Patrulius & Avram 1976]WCH96

*Type species of generic name indicated

References

[C79] Callomon, J. H. 1979. Marine boreal Bathonian fossils from the northern North Sea and their palaeogeographical significance. Proceedings of the Geological Association 90: 163–169.

[DCH81] Donovan, D. T., J. H. Callomon & M. K. Howart. 1981. Classification of the Jurassic Ammonitina. In: House, M. R., & J. R. Senior (eds) The Ammonoidea: The evolution, classification, mode of life and geological usefulness of a major fossil group pp. 101–155. Academic Press.

[EK02] Engeser, T., & H. Keupp. 2002. Phylogeny of the aptychi-possessing Neoammonoidea (Aptychophora nov., Cephalopoda). Lethaia 35: 79–96.

[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).

[P93] Page, K. N. 1993. Mollusca: Cephalopoda (Ammonoidea: Phylloceratina, Lytoceratina, Ammonitina and Ancyloceratina). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 213–227. Chapman & Hall: London.

[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.

[SB93] Skelton, P. W., & M. J. Benton. 1993. Mollusca: Rostroconchia, Scaphopoda and Bivalvia. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 237–263. Chapman & Hall: London.

[S89] Steinmann, G. 1889. Vorläufige Mittheilung über die Organisation der Ammoniten. Berichte der Naturforschenden Gesellschaft zu Freiburg I. B. 4: 113–129.

[W81] Westermann, G. E. G. 1981. Ammonite biochronology and biogeography of the circum-Pacific Middle Jurassic. In: House, M. R., & J. R. Senior (eds) The Ammonoidea: The evolution, classification, mode of life and geological usefulness of a major fossil group pp. 459–498. Academic Press.

[WCH96] Wright, C. W., J. H. Calloman & M. K. Howarth. 1996. Treatise on Invertebrate Paleontology pt L. Mollusca 4, revised vol. 4. Cretaceous Ammonoidea. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[Z81] Ziegler, B. 1981. Ammonoid biostratigraphy and provincialism: Jurassic-Old World. In: House, M. R., & J. R. Senior (eds) The Ammonoidea: The evolution, classification, mode of life and geological usefulness of a major fossil group pp. 433–457. Academic Press.

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