Species
Valid Extinct

Trinacromerum bentonianum

Cragin 1888

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
14
Group
Sauroptérygiens
Carnivore aquatic, depth=surface Marine
🦴
PBDB ↗
Classification
Sauropterygia Suborder
›
Plesiosauria Order
›
Plesiosauroidea Superfamily
›
Polycotylidae Family
›
Polycotylinae Subfamily
›
Trinacromerum Genus
›
Trinacromerum bentonianum Species
Fossil sites 14 geolocated sites
Distribution
Top countries
🇺🇸 United States
14
Geological formations
Carlile Shale
5
Greenhorn Limestone
4
Tropic Shale
1
Lake Waco
1
Temporal distribution
Turonian (93.9–89.8 Ma)
10
Cenomanian (100.5–93.9 Ma)
4
Synonyms (3)
Ceraunosaurus brownorum subjective synonym of Trinacromerum bentonianum
Trinacromerum anonymum subjective synonym of Trinacromerum bentonianum
Trinacromerum willistoni subjective synonym of Trinacromerum bentonianum
Bibliography
Original description
F. R. O'Keefe. 2001. A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia). Acta Zoologica Fennica 213:1-63
Bibliography (5)
L. B. Albright, D. D. Gillette, and A. L. Titus. 2007. Plesiosaurs from the Upper Cretaceous (Cenomanian-Turonian) Tropic Shale of southern Utah, part 2: Polycotylidae. Journal of Vertebrate Paleontology 27(1):41-58 DOI ↗
B. A. Schumacher and M. J. Everhart. 2005. A stratigraphic and taxonomic review of plesiosaurs from the old "Fort Benton Group" of central Kansas: a new assessment of old records. Paludicola 5(2):33-54
J. T. Thurmond. 1968. A new polycotylid plesiosaur from the Lake Waco Formation (Cenomanian) of Texas. Journal of Paleontology 42(5):1289-1296
E. S. Riggs. 1944. A new polycotylid plesiosaur. The University of Kansas Science Bulletin 30(8):77-87 DOI ↗
S. W. Williston. 1908. North American plesiosaurs Trinacromerum. Journal of Geology 16(8):715-736 DOI ↗