USGS 10839, Sycamore Creek (Cretaceous of the United States)

Where: Kinney County, Texas (29.2° N, 100.8° W: paleocoordinates 30.6° N, 69.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Eagle Ford Formation, Early/Lower Turonian (93.5 - 89.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by L.W. Stephenson; reposited in the USNM

Primary reference: C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 197701: authorized by Matthew Clapham, entered by Matthew Clapham on 22.11.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Spatangoida - Hemiasteridae
"Hemiaster jacksoni" = Mecaster batnensis
"Hemiaster jacksoni" = Mecaster batnensis Coquand 1862 heart urchin