ammonites
Licnocephala bicornuta Ross, Jr. 1951 (trilobite)

Trilobita - Proetida - Bathyuridae

Full reference: R. J. Ross, Jr. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161

Belongs to Licnocephala according to R. J. Ross 1951

Sister taxa: Licnocephala cavigladius, Licnocephala ovata

Type specimen: YPM 18180, a cephalon/head (cranidium). Its type locality is Locality 6, Hillyard's Canyon, Zone "G(2)a", which is in a Tulean shallow subtidal horizon in the Garden City Formation of Idaho.

Ecology: fast-moving low-level epifaunal deposit feeder