Actinopteri - Lepisosteiformes - Lepisosteidae
Alternative combinations: Atractosteus occidentalis, Lepidotes occidentalis
Synonym: Lepidotus haydeni Leidy 1856
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
See also Hay 1902, Leidy 1856 and Leidy 1857
Sister taxa: Lepisosteus aganus, Lepisosteus cuneatus, Lepisosteus cycliferus, Lepisosteus glaber, Lepisosteus integer, Lepisosteus knieskerni, Lepisosteus nahunticus, Lepisosteus osseus, Lepisosteus whitneyi, Clastes lusitanicus, Clastes pustulosus
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
Distribution:
• Eocene of United States (1: North Dakota collection)
• Paleocene of United States (3: Montana, Wyoming)
• Cretaceous of Canada (33: Alberta, Saskatchewan), United States (81: Arizona, Colorado, Montana, New Mexico, North Dakota, South Dakota, Wyoming)
Total: 118 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.