U.S. highway 81 roadcut, south of Concordia (FHSM 1331, T. willistoni type) (Cretaceous of the United States)

Where: Cloud County, Kansas (39.5° N, 97.7° W: paleocoordinates 37.8° N, 60.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Hartland Shale Member (Greenhorn Limestone Formation), Late/Upper Cenomanian (99.6 - 93.5 Ma)

• "the horizon is 10 feet below the Jetmore Chalk member in beds which, farther west of this area, have been classified as the Hartland Shale member, Greenhorn Limestone formation, Cretaceous series."

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected in 1936

Collection methods: salvage,

• discovered by road crew

Primary reference: E. S. Riggs. 1944. A new polycotylid plesiosaur. The University of Kansas Science Bulletin 30(8):77-87 [M. Carrano/H. Street]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 106182: authorized by Matthew Carrano, entered by Hallie Street on 04.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Sauropterygia - Polycotylidae
"Trinacromerum willistoni n. sp." = Trinacromerum bentonianum
"Trinacromerum willistoni n. sp." = Trinacromerum bentonianum Cragin 1888 plesiosaur
KUVP 1331 (skeleton with skull missing limbs)