Where: Utah (37.1° N, 111.7° W: paleocoordinates 40.6° N, 77.3° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Pseudoaspidoceras flexuosum ammonoid zone, Tropic Shale Formation, Early/Lower Turonian (93.5 - 89.3 Ma)
• Approximately 21 m above local top of Dakota Formation, 3.4 m below top of Bentonite C; middle to upper part of the Pseudoaspidoceras flexuosum Ammonoid Biozone (also associated with Fagesia catinus, Mytiloides duplicostatus, M. hattini, and M. elongata)
• bed-level stratigraphic resolution
Environment/lithology: marine; shale
Size class: macrofossils
Collected in 2000-2001
Collection methods: quarrying, surface (float), surface (in situ), mechanical,
• MNA, Museum of Northern Arizona, Flagstaff, Arizona, USA
Primary reference: L. B. Albright, D. D. Gillette, and A. L. Titus. 2007. Plesiosaurs from the Upper Cretaceous (Cenomanian-Turonian) Tropic Shale of southern Utah, part 1: new records of the pliosaur Brachauchenius lucasi. Journal of Vertebrate Paleontology 27(1):31-40 [M. Carrano/H. Street]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 150871: authorized by Roger Benson, entered by Roger Benson on 16.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Brachauchenius lucasi Williston 1903 plesiosaur MNA V9433: nearly complete skull (cranium and mandible) with teeth, 12 cervical vertebrae, 22 dorsal vertebrae, ribs, partial scapula, left coracoid, partial right coracoid, right ilium, partial pubis, partial ischium
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