Unranked clade
Valid Extinct

Dolichorhynchia

Clark et al. 2024

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
19
Group
Sauroptérygiens
Carnivore aquatic, depth=surface Marine
Dolichorhynchia
click to enlarge
Wikimedia
PBDB
Classification
Sauropterygia Suborder
Plesiosauria Order
Plesiosauroidea Superfamily
Polycotylidae Family
Polycotylinae Subfamily
Dolichorhynchia Unranked clade
Fossil sites 19 geolocated sites
Distribution
Top countries
🇺🇸 United States
13
🇨🇦 Canada
3
🇵🇱 Poland
2
🇷🇺 Russia
1
Geological formations
Mesaverde
2
Sharon Springs
2
Taylor Marl
1
Bearpaw Shale
1
Temporal distribution
Campanian (83.6–72.2 Ma)
12
Santonian (85.7–83.6 Ma)
2
Coniacian (89.8–85.7 Ma)
2
Turonian (93.9–89.8 Ma)
3
Images 1
Bibliography
Original description
R. O. Clark, F. R. O'Keefe, and S. E. Slack. 2024. A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops. Cretaceous Research 157:105812:1-35 DOI ↗
Bibliography (11)
R. O. Clark, F. R. O'Keefe, and S. E. Slack. 2024. A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops. Cretaceous Research 157:105812:1-35 DOI ↗
T. Sato, X.-C. Wu, and A. Tirabasso, P. Bloskie. 2011. Braincase of a polycotylid plesiosaur (Reptilia: Sauropterygia) from the Upper Cretaceous of Manitoba, Canada. Journal of Vertebrate Paleontology 31(2):313-329 DOI ↗
D. G. DeMar and B. H. Breithaupt. 2008. Terrestrial and aquatic vertebrate paleocommunities of the Mesaverde Formation (Upper Cretaceous, Campanian) of the Wind River and Bighorn Basins, Wyoming, USA. Vertebrate Microfossil Assemblages: Their Role in Paleoecology and Paleobiogeography
F. R. O'Keefe. 2008. Cranial anatomy and taxonomy of Dolichorhynchops bonneri new combination, a polycotylid (Sauropteryga: Plesiosauria) from the Pierre Shale of Wyoming and South Dakota. Journal of Vertebrate Paleontology 28(3):664-676 DOI ↗
D. G. DeMar, Jr. and B. H. Breithaupt. 2006. The nonmammalian vertebrate microfossil assemblages of the Mesaverde Formation (Upper Cretaceous, Campanian) of the Wind River and Bighorn Basins, Wyoming. Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:33-54
T. Sato. 2005. A new polycotylid plesiosaur (Reptilia: Sauropterygia) from the Upper Cretaceous Bearpaw Formation in Saskatchewan, Canada. Journal of Paleontology 79(5):969-980 DOI ↗
D. A. Adams. 1997. Trinacromerum bonneri, new species, last and fastest pliosaur of the Western Interior Seaway. Texas Journal of Science 49(3):179-198
K. Carpenter. 1996. A review of short-necked plesiosaurs of the Western Interior, North America. Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen 201(2):259-287 DOI ↗
D. A. Russell. 1967. Cretaceous vertebrates from the Anderson River N. W. T. Canadian Journal of Earth Sciences 4(1):21-38 DOI ↗
S. W. Williston. 1902. Restoration of Dolichorhynchops osborni, a new Cretaceous plesiosaur. Kansas University Science Bulletin 1(9):241-244
H. Schröder. 1885. Saurierreste aus der baltischen oberen Kreide [Saurian remains from the Baltic Upper Cretaceous]. Jahrbuch der Königlich Preussischen geologischen Landesanstalt und Bergakademie zu Berlin 1884:293-333