Also known as YPM 1129, T. anonymum referred locality
Where: Osborne County County, Kansas (38.9° N, 97.4° W: paleocoordinates 39.2° N, 62.6° W)
• coordinate estimated from map
When: Fairport Member (Carlile Shale Formation), Middle Turonian (93.5 - 89.3 Ma)
• "Williston (1908) also states that 'the type specimen collected by the late Professor Mudge [is] from nearly the same locality and doubtless the same horizon in the Upper Benton'. From this information we assume that the specimen was collected from the Fairport Chalk in Osborne County. This is also one reference in which Williston refers specifically to the Upper Benton (i.e. - Fairport Chalk and perhaps Blue Hill Shale; presumably the "Lower Benton" corresponded to the Graneros Shale and Greenhorn Limestone). If our (and Williston's) assumptions are correct, the specimen is early Middle Turonian in age" (Schumacher & Everhart 2005, p. 48).
• bed-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Collected by Mr Joseph Savage in 1873
Collection methods: quarrying,
• YPM collection
Primary reference: 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 [R. Benson/R. Benson/R. Butler]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 117815: authorized by Roger Benson, entered by Roger Benson on 27.09.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Trinacromerum anonymum" = Trinacromerum bentonianum
"Trinacromerum anonymum" = Trinacromerum bentonianum Cragin 1888 plesiosaur YPM 1129 (partial skeleton and skull)
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