Priscosturion

Priscosturion is a genus of sturgeon from the Judith River Formation. It lived during the Campanian stage of the Late Cretaceous some 77.5 million years ago. Initially called Psammorhynchus, its describers Lance Grande and Eric J. Hilton renamed the animal in 2009. The fish belongs to the subfamily Priscosturioninae within the larger family Acipenseridae.[2] Priscosturion is only known from one species, P. longipinnis.

Priscosturion
Temporal range: [1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acipenseriformes
Family: Acipenseridae
Subfamily: †Priscosturioninae
Grande and Hilton, 2009
Genus: †Priscosturion
Grande and Hilton, 2009
Species:
†P. longipinnis
Binomial name
†Priscosturion longipinnis
(Grande and Hilton, 2006)
Synonyms
  • Psammorhynchus Grande & Hilton, 2006

Description

Priscosturion was around 800 millimetres (31 in) in overall length. Its type specimen is rather complete. It is notable for its rather robust vertebrae.[3]

References
  1. Rodgers, Raymond (2016). "Age, Correlation, and Lithostratigraphic Revision of the Upper Cretaceous (Campanian) Judith River Formation in Its Type Area (North-Central Montana), with a Comparison of Low- and High-Accommodation Alluvial Records". The Journal of Geology. 124 (1): 99–135. Bibcode:2016JG....124...99R. doi:10.1086/684289. S2CID 130555911.
  2. "A replacement name for Psammorhynchus Grande & Hilton, 2006 (Actinopterygii, Acipenseriformes, Acipenseridae)". Journal of Paleontology. 83 (2). 2009.
  3. Lance, Grande (2006). "An Exquisitely Preserved Skeleton Representing a Primitive Sturgeon from the Upper Cretaceous Judith River Formation of Montana (Acipenseriformes: Acipenseridae: N. gen. and sp.)". Cambridge University Press. 80 (4): 1–39. doi:10.1666/05032.1. S2CID 131689748.
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