USGS 6583, Bibora Creek (Paleocene of the United States)

Also known as M 242

Where: Maverick County, Texas (28.5° N, 100.2° W: paleocoordinates 34.0° N, 81.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kincaid Formation (Midway Group), Danian (66.0 - 61.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; mixed carbonate-siliciclastic sediments

• Area interpreted as interfingering between "carbonate platform" and "shelf mud" by Roy (1984).
• "ledges of sandstone and limestone"

Size classes: macrofossils, mesofossils

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

Primary reference: J. Gardner. 1933. The Midway Group of Texas. The University of Texas Bulletin, Publication Bureau of Economic Geology (3301) [J. Sessa/L. Eccles]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91826: authorized by Jocelyn Sessa, entered by Laurie Eccles on 20.10.2009, edited by Ursula Smith and Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Arcida - Cucullaeidae
Cucullaea texana
 Carditida - Carditidae
"Venericardia moa" = Venericardia (Baluchicardia) moa
"Venericardia moa" = Venericardia (Baluchicardia) moa Gardner 1935 clam
 Lucinida - Lucinidae
"Phacoide (Miltha) albaripa" = Cavilucina
"Phacoide (Miltha) albaripa" = Cavilucina clam
 Cardiida - Cardiidae
Cardium "sp. C"
Cardium "sp. C" Linnaeus 1758 cockle
 Cardiida - Veneridae
Callocardia hawtofi, Callocardia bilboraensis n. sp.
Callocardia bilboraensis n. sp. venus clam
Cephalopoda
 Nautilida - Hercoglossidae
Cimomia vaughani
Cimomia vaughani Gardner 1923 nautiloid
Gastropoda
 Cerithioidea - Turritellidae
Turritella "n. sp.", Turritella bilboraensis n. sp.
Turritella "n. sp." Lamarck 1799 turret shell
cf. Turritella mortoni
Turritella bilboraensis n. sp. turret shell