Английская Википедия:Condraoceras

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Версия от 02:14, 21 февраля 2024; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{Short description|Extinct genus of molluscs}} {{Automatic taxobox | taxon = Condraoceras | fossil_range = {{Fossil range |Pennsylvanian | Late Permian}} | authority = Miller, et al, 1947 }} '''''Condraoceras''''' is a genus of liroceratids from the Pennsylvanian of North America and Lower Permian of Europe with a compressed, involute, nautiliconic shell; subcircul...»)
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Шаблон:Short description Шаблон:Automatic taxobox

Condraoceras is a genus of liroceratids from the Pennsylvanian of North America and Lower Permian of Europe with a compressed, involute, nautiliconic shell; subcircular whorl section; small umbilicus with a rounded shoulder; suture with shallow ventral and lateral lobes; and narrow subcentral siphuncle.

Liroceras, from the same time and type of the family, differs in having a reniform whorl section and essentially straight sutures at maturity. Peripetoceras, another related genus, has a flattened venter, slight ventral and lateral lobes in the suture, and a siphuncle offset dorsally from the center.

References

Шаблон:Reflist

Шаблон:Taxonbar


Шаблон:Paleo-nautiloid-stub