Agathiceras, from here.

Belongs within: Goniatitina.

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

Characters (from Miller et al. 1957): Conch subdiscoidal to globular, umbilicus small, test prominently longitudinally lirate. Sutures goniatitic.

Agathiceratidae [Eothinitidae, Paragastrioceratidae]ZL04
| i. s.: GaetanocerasRR79
| Epiglyphioceras Spath 1930RR79, ZL04
| `--E. meneghiniiP68
| Dombarites poststriatus (Brüning 1923)HK93
| Proshumardites morrowanus Gordon 1964K81, P68
| PericleitesK81
`--+--Eothinites [Eothinitinae]KK12
| `--E. kargalensisWK81
| | `--+--+--ChekiangocerasKK12
| | | `--+--AulacogastriocerasKK12
| | | `--+--MetagastriocerasKK12
| | | `--StenolobulitesKK12
| | `--+--AnatsabitesKK12
| | `--Atsabites [Atsabitinae]KK12
| | |--A. multiliratusRR79
| | `--A. williamsiRR79
| `--+--Roadoceras beedeiKK12
| `--+--StrigogoniatitesKK12
| | |--S. angulatusRR79
| | `--S. fountaini Miller & Furnish 1940P68
| `--+--RetiogastricerasKK12
| `--Pseudogastrioceras [Pseudogastrioceratinae]KK12
| |--P. altudenseP68
| |--P. beedeiP68
| |--P. cooperi (Miller 1945)P68
| |--P. mckeei Miller & Furnish 1958P68
| `--P. roadenseP68
| | `--Spirolegoceras [Spirolegoceratinae]KK12
| `--+--DaubichitesKK12
| `--+--Uraloceras involutumKK12, SG89
| `--TumarocerasKK12
`--Agathiceras Gemmellaro 1887ZL04 [incl. Paragastrioceras Ruzhencev 1950KK12, ZL04; Paragastrioceratinae]
|--*A. suessi Gemmellaro 1887ZL04
|--A. appliniP68
|--A. ciscoense Smith 1903P68
|--A. distefanoiG31
|--A. elegansG31
|--A. ensiferumG31
|--A. girtyiP68
|--A. hoffmanni [=Hoffmannia hoffmanni]G31
|--A. insigneG31
|--‘Paragastrioceras’ jossaeKK12
|--A. kingiG31
|--A. kinshanenseG31
|--A. krotowiG31
|--A. mediterraneum Toumanskaya 1949 [incl. A. frechi var. ircutensis Toumonaskaya 1949]ZL04
|--‘Paragastrioceras’ modulatumKK12
|--A. stuckenbergiG31
|--A. texanum Girty 1908P68
`--A. uralicumWK81

*Type species of generic name indicated


[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.

[KK12] Korn, D., & C. Klug. 2012. Palaeozoic ammonoids—diversity and development of conch morphology. In: Talent, J. A. (ed.) Earth and Life: Global biodiversity, extinction intervals and biogeographic perturbations through time pp. 491–534. Springer.

[K81] Kullmann, J. 1981. Carboniferous goniatites. 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. 37–48. Academic 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.

[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).

[SG89] Spinosa, C., D. M. Gallegos, D. Wang, M. Norris-Willing & S. A. Ward. 1989. Lower Permian ammonoid and conodont biostratigraphy of the Western Marginal Facies of the Dry Mountain Trough, northeast Nevada. Abstracts with Programs—Geological Society of America 21: 148.

[WK81] Wiedmann, J., & J. Kullmann. 1981. Ammonoid sutures in ontogeny and phylogeny. 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. 215–255. Academic Press.

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

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