Subvestinautilus

From Wikipedia, the free encyclopedia

Subvestinautilus
Temporal range: L Carboniferous (Miss)
Scientific classification
Kingdom:
Phylum:
Mollusca
Class:
Subclass:
Order:
Superfamily:
Family:
Genus:
Subvestinautilus

Turner, 1954

Subvestinautilus is a genus of evolute koninckioceratids, in the order Nautilida, with a depressed, trapezoidal whorl section. The venter is broadly rounded, ventrolateral shoulders sharply rounded, flanks flattened and converging toward a narrow rounded dorsum. In early growth stages a keel forms on the umbilical shoulder which becomes rounded or marked by a longitudal rib at maturity . The suture has a broadly rounded ventral lobe and a deeper lateral lobe.

Subvestinautilus, named by Turner, 1954, has been found in the Lower Carboniferous of Ireland and the Isle of Man.

References[]

  • Bernhard Kummel, 1964. Nautiloidea-Nautilida. Treatise on Invertebrate Paleontology, Part K. Geological Soc. of America and University of Kansas press. Teichert and Moore (eds)
  • Koninckioceratidae-Paleodb


Retrieved from ""