Английская Википедия:Acanthoscaphites
Шаблон:Short description Шаблон:Automatic taxobox
Acanthoscaphites is an extinct genus of cephalopod belonging to the Ammonite subclass. The average diameter of its shell was approximately Шаблон:Convert, but some specimens have been found with a diameter of slightly over Шаблон:Convert.
Classification
Acanthoscaphites was first described by Schluter in 1872. Subsequent taxonomic revisions indicate that the relationship between Acanthoscaphites and Trachyscaphites is still unclear: Acanthoscaphites may have evolved in parallel with or as a derivative of Trachyscaphites.[1]
Species
- A. plenus
- A. tridens
- A. verneuilianus
Biogeography
Acanthoscaphites was a widespread genus during Campanian and Maastrichtian times, approximately 80 million years ago.[1] Its remains can be found in rocks of that age from Europe and North America.[2]
References
- Английская Википедия
- Late Cretaceous ammonites of Europe
- Late Cretaceous ammonites of North America
- Ammonitida genera
- Scaphitidae
- Campanian genus first appearances
- Maastrichtian genus extinctions
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