Proterocameroceras

Proterocameroceras
Temporal range: uL Ordovician
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Nautiloidea
Order: Endocerida
Family: Proterocameroceratidae
Genus: Proterocameroceras
Reudemann 1905

Proterocameroceras is an early Endocerid from the upper Lower Ordovician belong to the Proterocameroceratidae, characterized by a rather large, straight, longiconic shell, short chambers, generally straight sutures, and large ventral siphuncle with short septal necks, thick complex connecting rings, and endocones with three endosiphuncular blades toward the apex.

Proterocameroceas has been found in N America, Greenland, Siberia, and Australia

References

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