Condraoceras Temporal range: Pennsylvanian – Late Permian |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Order: | Nautilida |
Family: | †Liroceratidae |
Genus: |
†Condraoceras 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; 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. , another related genus, has a flattened venter, slight ventral and lateral lobes in the suture, and a siphuncle offset dorsally from the center.