Chin Coulee Site No. 2 (Wann Langston Jr. 1958) (Cretaceous of Canada)

Where: Alberta, Canada (49.5° N, 111.4° W: paleocoordinates 56.9° N, 76.7° W)

• small collection-level geographic resolution

When: Foremost Formation (Belly River Group), Middle Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; brown, calcareous shale

• All the material was collected from a low-diversity bone bed in a “soft gray-brown slightly carbonaceous shale that is 17 feet above the massive yellow-weathering Ostrea bed” (Chin Coulee Site No. 2; W. Langston, Jr., unpublished 1958 field notes on file at the Canadian Museum of Nature) in Chin Coulee (Fig. 2). More precise locality is on file with the Canadian Museum of Nature, Ottawa, Ontario, Canada.

Size class: macrofossils

Collected by W. Langston in 1958; reposited in the TMP

Collection methods: surface (in situ), mechanical,

• Canadian Museum of Nature (CMN) collection

Primary reference: M. J. Ryan, D. C. Evans, and K. M. Shepherd. 2012. A new ceratopsid from the Foremost Formation (middle Campanian) of Alberta. Canadian Journal of Earth Sciences 49:1251-1262 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135811: authorized by Roger Benson, entered by Roger Benson on 09.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Neornithischia - Ceratopsidae
Xenoceratops foremostensis n. gen. n. sp. Ryan et al. 2012 ceratopsid
The material originally catalogued as CMN 53282 is a composite of at least three adult-sized individuals. CMN 53282 is retained for the holotype, with CMN 54950 and CMN 54951 designated as paratype parietals representing two other individuals. The remainder of the referred material is assigned sequential specimen numbers CMN 54952 to CMN 54964 (CMN 54952, parietal (Figs. 6F, 6G); CMN 54953, parietal (Figs. 6D, 6E); CMN 54954, squamosal (Figs. 8A–8C); CMN 54955, nasal (Fig. 8D); CMN 54956, squamosal (Fig. 8E); CMN 54957, squamosal; CMN 54958, parietal (Fig. 6H); CMN 54959, parietal P4 process; CMN 54960, parietal with P3 suture; CMN 54961, epiparietal (Fig. 6C); CMN 54962, epiparietal (Fig. 6B); CMN 54963, epiparietal (Fig. 6A); CMN 54964, parietal); none of this material can be confidently referred to the holotypes or paratypes, but likely pertain to these type specimens owing to their close association. CMN 54965 is assigned to all remaining unidentified fragments originally part of the CMN 53282 designation