Osteichthyes - Lepisosteiformes - Lepisosteidae

PaleoDB taxon number: 63033

Alternative combinations: Atractosteus occidentalis, Lepidotes occidentalis

Synonym: Lepidotus haydeni Leidy 1856 (taxon 65122)

Full reference: J. Leidy. 1856. Notices of remains of extinct reptiles and fishes, discovered by Dr. F. V. Hayden in the bad lands of the Judith River, Nebraska Territory. Proceedings of the Academy of Natural Sciences of Philadelphia 8:72-73

Belongs to Lepisosteus according to R. Estes 1976

Sister taxa: Lepisosteus aganus, Lepisosteus cuneatus, Lepisosteus cycliferus, Lepisosteus glaber, Lepisosteus integer, Lepisosteus knieskerni, Lepisosteus nahunticus, Lepisosteus osseus, Lepisosteus whitneyi

Type specimens:

• Lepisosteus occidentalis: Its type locality is Judith River badlands (USGS), which is in a Campanian/Campanian terrestrial horizon in the Judith River Formation of Montana
• Lepidotus haydeni: Its type locality is Judith River badlands (USGS), which is in a Campanian/Campanian terrestrial horizon in the Judith River Formation of Montana.

Ecology: aquatic carnivore