Acanthoclymenia

Acanthoclymenia is genus of ammonoid cephalopods belonging to the Acanthoclymeniidae family. Species belonging to this genus lived in middle and late Devonian (upper Givetian - lower Frasnian). Its fossils were found in Europe, Asia, north Africa, North America and Australia.[1][3] Species of this genus had discoidal shells with flattened venter.[2]

Acanthoclymenia
Temporal range: upper Givetian - lower Frasnian[1][2][3]
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Clymeniida
Suborder:
Anarcestina
Superfamily:
Beloceratoidea
Family:
Acanthoclymeniidae
Genus:
Acanthoclymenia

Hyatt, 1900
Type species
Acanthoclymenia neapolitana Clarke, 1898

Species and distribution

[1][3]

  • Acanthoclymenia neapolitana Clarke, 1898: ca 383.7 - 376.1 mya of USA (New York) and Australia.
  • Acanthoclymenia forcipifer Sandberger & Sandberger, 1851: ca 378.7 - 376.9 mya of Algeria, Germany, Great Britain Kazakhstan and China (Guangxi and Guizhou).
  • Acanthoclymenia genundewa Clarke, 1899: ca 383.3 - 382.7 mya of USA (New York) and Poland.
  • Acanthoclymenia planorbis Sandberger & Sandberger, 1851: ca 377.5 - 376.9 mya of USA (New York).

There were more finds of this genus, but without valid description:

  • Acanthoclymenia aff. genundewa Clarke, 1898: ca 378.7 - 376.9 mya of USA (West Virginia) and Russia (Southern Timan).
  • Acanthoclymenia aff. neapolitana Clarke, 1898: ca 383.7 - 376.1 mya of Australia.
  • Acanthoclymenia n.sp. juv. Becker et al. 2000: ca 378.7 - 377.5 mya of Russia (Southern Timan).

References
  1. "Goniat database". Retrieved 20 May 2016.
  2. Korn D, Klug C (2002) Ammoneae Devonicae. Fossilium Catalogus 138. Backhuys, Leiden
  3. "Paleobiology Database". Retrieved 20 May 2016.


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