Where: Nuevo León, Mexico (25.8° N, 99.7° W: paleocoordinates 28.5° N, 70.1° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: San Felipe Formation, Coniacian to Coniacian (89.8 - 83.6 Ma)
• "The matrix of the bones suggests certain parts of the San Felipe formation of the Upper Cretaceous, but this may be entirely misleading. It is likely that the remains are as young or younger than the San Filipe, however."
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, concretionary claystone
Size class: macrofossils
Preservation: concretion
Collected by C. D. Johnson
Primary reference: M. G. Mehl. 1930. A new genus of mosasaurs from Mexico, and notes on the pelvic girdle of Platecarpus. Denison University Bulletin, Journal of the Scientific Laboratories 29(10):383-400 [M. Carrano/H. Street/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 107338: authorized by Matthew Carrano, entered by Hallie Street on 05.04.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Amphekepubis johnsoni n. gen. n. sp.
Amphekepubis johnsoni n. gen. n. sp. Mehl 1930 mosasaur |