Aristoceratoides

Aristoceratoides is an extinct ammonoid genus belonging to the goniatitid family Thalassoceratidae that lived during the Middle Permian. Named by Ruzhentsev, 1960, the type species is "Thalassoceras" varicosum Gemmellaro, 1887.

Aristoceratoides
Temporal range: Wordian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Goniatitida
Family: Thalassoceratidae
Subfamily: Thalassoceratinae
Genus: Aristoceratoides
Ruzhentsev, 1960
Species
  • See Text

The shell of Aristoceratoides is globose, with ventrolateral furrows; whorls wider than high. The suture is simpler than that of its likely ancestor Aristoceras. Suture elements are simply digitate with digits restricted to the lower half of lobes.

References

    • Aristoceratoides in GONIAT Online 6/5/12
    • W. B. Saunders, D. M. Work, and S. V. Nikolaeva, 1999. Evolution of Complexity in Paleozoic Ammonoid Sutures, Supplementary Material. Science Magazine
    • "Aristoceratoides". The Paleobiology Database. Retrieved 18 July 2012.


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.