Hypodicranotus

Hypodicranotus striatulus is an extinct, pelagic trilobite in the order Asaphida, of the family Remopleuridae. Its fossils are found in Middle Ordovician-aged marine strata in New York State, United States, and in Ontario, Canada.

Hypodicranotus Temporal range: Middle Ordovician
Artist's reconstruction
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Asaphida
Family:	Remopleurididae
Genus:	Hypodicranotus Whittington, 1952
Species:	H. striatulus
Binomial name
Hypodicranotus striatulus (Walcott, 1875)
Synonyms
Remopleurides striatulus Walcott, 1875

The dorsal exoskeleton of H. striatulus is very similar to the related genus, Remopleurides, but, H. striatulus has a comparatively enormous, forked hypostome.