Where: Brewster County, Texas (29.4° N, 103.5° W: paleocoordinates 34.4° N, 74.0° W)

• coordinate estimated from map

When: Late/Upper Cretaceous (100.5 - 66.0 Ma)

• found in Terlingua clay; maybe Santonian

Environment/lithology: deep-water; unlithified claystone

Size classes: macrofossils, mesofossils

• the aptychi are associated with a varied, apparently dwarfed, fauna consisting of corals, pelecypods, gastropods, nautiloids, and ammonites (e.g. Texanites sp.)

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•Texanites: Size of specimen considered as strong support in favor of the probable affinity of Spinaptychus to Texanites as stated by Cox (1926) and Fischer & Fay (1953)

Primary reference: J.T. Twining. 1956. Occurrence of Spinaptychus in Texas. Journal of Paleontology 30(6):1370-1371 [B. Seuss/B. Seuss/B. Seuss]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 216534: authorized by Barbara Seuss, entered by Barbara Seuss on 18.12.2020

Creative Commons license: CC BY (attribution)