Cycloloboidea

Waagenoceras, from here.

Belongs within: Gastriocerataceae.

The Cycloloboidea are a group of discoidal to globular ammonoids known from the Upper Carboniferous to the Upper Permian (Miller et al. 1957).

Characters (from Miller et al. 1957, as Cyclolobaceae): Thickly discoidal to globular conchs, typically with small umbilici and ceratitic sutures possessing auxiliary lobes. Primitively with few auxiliary lobes; advanced forms with many auxiliary lobes, ammonitic sutures.

Cycloloboidea [Cyclolobaceae]ZL04
|--VidrioceratidaeZL04
| |--VidriocerasR79
| |--Glassoceras normaniRR79
| |--Prostacheoceras Ruzhencev 1937ZL04
| | |--*P. juresanensis (Maximova 1935) [=Marathonites juresanensis]ZL04
| | |--P. alter Leonova 1989ZL04
| | `--P. oshense (Toumanskaya 1938)ZL04
| `--Stacheoceras Gemmellaro 1887RR79, ZL04
| |--S. antiquumRR79
| |--S. gemmellaroiRR79
| |--S. globosum [=Popanoceras globosum]G31
| |--S. gordoni Miller, Furnish & Clark 1957P68
| |--S. karpinskyi [=Popanoceras karpinskyi]G31
| |--S. mediterraneum [=Popanoceras mediterraneum]G31
| |--S. normani Miller & Furnish 1957P68
| `--S. tridensRR79
`--CyclolobidaeRR79
|--KufengocerasRR79
|--MexicocerasRR79
|--ShengocerasRR79
|--ChangsingocerasHK93
|--KrafftocerasRR79
| |--K. haydeni [=Cyclolobus haydeni]G31
| `--K. kraffti [=Cyclolobus kraffti]G31
|--TimoritesRR79
| |--T. curvicostatusRR79
| `--T. schuchertiP68
|--CyclolobusRR79
| |--*C. oldhamiH84
| |--C. insignisG31
| |--C. kullingiRR79
| |--C. persulcatusRR79
| `--C. teichertiRR79
`--WaagenocerasRR79
|--W. dieneriP68
`--W. guadelupense Girty 1908 [=W. cummingsi guadelupense]P68
|--W. g. guadelupenseP68
|--W. g. smithi Miller & Furnish 1940P68
`--W. g. thompsoni Miller & Furnish 1940P68

*Type species of generic name indicated

References

[G31] Grabau, A. W. 1931. The Permian of Mongolia: A report on the Permian fauna of the Jisu Honguer limestone of Mongolia and its relations to the Permian of other parts of the world. American Museum of Natural History: New York.

[HK93] Hewitt, R. A., J. Kullmann, M. R. House, B. F. Glenister & Wang Y.-G. 1993. Mollusca: Cephalopoda (pre-Jurassic Ammonoidea). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 189–211. Chapman & Hall: London.

[H84] Hyatt, A. 1883–1884. Genera of fossil cephalopods. Boston Soc. Nat. History, Proc. 22: 253–338.

Miller, A. K., W. M. Furnish & O. H. Schindewolf. 1957. Paleozoic Ammonoidea. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt L. Mollusca 4. Cephalopoda: Ammonoidea pp. L11–L79. Geological Society of America, and University of Kansas Press.

[P68] Purnell, L. R. 1968. Catalog of the type specimens of invertebrate fossils. Part I: Paleozoic Cephalopoda. United States National Museum Bulletin 262: 1–198.

[R79] Ross, C. A. 1979. Carboniferous. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A254–A290. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[RR79] Ross, C. A., & J. R. P. Ross. 1979. Permian. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A291–A350. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[ZL04] Zhou, Z., & M. Liengjarern. 2004. Lower Permian perrinitid ammonoid faunas from Thailand. Journal of Paleontology 78: 317–339.

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