West of Hays, Unit 3' or 5' (Cretaceous of the United States)

Also known as Locality 4

Where: Ellis County, Kansas (38.9° N, 99.4° W: paleocoordinates 40.7° N, 65.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Fort Hays Limestone Member (Niobrara Formation), Early/Lower Coniacian (89.3 - 85.8 Ma)

• Unit 3' or 5' (assignment of unit numbers to locality 4 is problematic, because correlation of the beds of the Fort Hays in a north-south direction is difficult in the region, so beds at locality 4 arbitrarily named 1', 2', etc.). Most selachian teeth from the Fort Hays Limestone were collected from limestone float; however, stratigraphic positions of these fossils are estimated as close as possible by circumstantial evidence, such as the position of fossil-bearing rocks with respect to the height of the outcrop, lithology, and weathering pattern.

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collection methods: Repository: Sternberg Museum of Natural History, Fort Hays State University (FHSM)

Primary reference: K. Shimada. 1996. Selachians from the Fort Hays Limestone Member of the Niobrara Chalk (Upper Cretaceous), Ellis County, Kansas. Transactions of the Kansas Academy of Science 99:1-15 [M. Clapham/S. Ross/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 213556: authorized by Matthew Clapham, entered by Matthew Clapham on 04.09.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Lamniformes - Anacoracidae
Squalicorax falcatus Agassiz 1843 crow shark