Highway 36 roadcut (Cretaceous of the United States)

Where: Washington County, Kansas (39.8° N, 97.3° W: paleocoordinates 40.1° N, 62.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jetmore Chalk Member (Greenhorn Limestone Formation), Early/Lower Turonian (93.5 - 89.3 Ma)

• All specimens come from a chalky portion of the Jetmore Chalk stratigraphically between Hattin's (1975) marker units JT-9 and JT-10.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore ramp; poorly lithified, calcareous shale

Size class: macrofossils

Collection methods: surface (in situ), chemical, acetic

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

Primary reference: A. Nelms, A. P. McIntosh, and K. Shimada. 2014. Fossil fishes from the Jetmore Chalk Member (Lower Turonian) of the Upper Cretaceous Greenhorn Limestone in north-central Kansas. Transactions of the Kansas Academy of Science 117:245-252 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 213384: authorized by Matthew Clapham, entered by Matthew Clapham on 30.08.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Amiiformes - Caturidae
Caturidae indet. Owen 1860 bowfin
 Tselfatiiformes - Plethodidae
Plethodidae indet. Loomis 1900
 Ichthyodectiformes - Ichthyodectidae
Xiphactinus audax Leidy 1870
 Crossognathiformes - Pachyrhizodontidae
Pachyrhizodus minimus Stewart 1899
 Albuliformes - Albulidae
? Albulidae indet. Bleeker 1859 bonefish
 Aulopiformes - Enchodontidae
Enchodus shumardi Leidy 1856
 Pycnodontiformes - Pycnodontidae
Hadrodus sp. Leidy 1857
Chondrichthyes
 Hybodontiformes - Ptychodontidae
 Carcharhiniformes - Scyliorhinidae
Scyliorhinus arlingtonensis Cappetta and Case 1999 cat shark
 Lamniformes - Cardabiodontidae
Cardabiodon sp. Siverson 1999 mackerel shark
 Lamniformes - Cretoxyrhinidae
Cretoxyrhina mantelli Agassiz 1835 mackerel shark
 Lamniformes - Anacoracidae
Squalicorax cf. falcatus Agassiz 1843 crow shark
Squalicorax cf. pawpawensis Siverson et al. 2007 crow shark
 Rajiformes - Rhinobatidae
Rhinobatos sp. Link 1790 guitarfish