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Cretaceous Ammonites from Texas and northern Mexico


Cretaceous Ammonites from Texas and northern Mexico



Univ Texas Bull 2748: 143-312



Ammonites ranging in age from Cenomanian to Maestrichtian and cited in an accompanying paper on the Cretaceous and Tertiary deposits of southern Texas and northern Mexico are described and the relations of the faunas of the Albian and later beds discussed at length. The fauna of the Pawpaw beds is interpreted provisionally as representing the uppermost Albian (bed XIII of Folkestone); of the Weno and Denton beds as representing bed XII; of the Duck Creek beds as representing beds X and IX; of the Kiamichi beds as representing bed VIII; of the Goodland beds as doubtful. The faunas of the uppermost Georgetown beds and the Del Rio clay are interpreted as lower Cenomanian; of the Buda limestone as upper Cenomanian. Other faunas permit correlation with the Salmurian (lower Turonian), upper Turonian, Coniacian, Santonian, Campanian, and Maestrichtian of Europe. The following are described: Albian: In-oceramus (Actinoceramus) subsulcatiformis* (p. 189) and Stoliczkaia adkinsi*(p. 193), Texas. Cenomanian: Turrilites brazoensis*Roemer, Acanthoceras cunning-toni Sharpe yar.*, Tetragonites brazoensis*(p. 203), Texas, Turrilites bosquensis* Adkins, Baculites cf. baculoides* Mantell, Stoliczkaia uddeni*(p. 211) Texas, S. aff. dispar* D'Onbigny, Mantelliceras wacoense*(p. 215) Texas, M. brazoense* (p. 220), Mexico and Texas, Scaphites bosquensis* (p. 224) and S. subevolutus*(p. 225) Texas, Engonoceras bravoense* (p. 229), Texas and Mexico, ADKINSIA (p. 232), resembling Flickia, (genotype A. adkinsi*, p. 237, Texas), A. sparsicosta* (p. 238), Texas, A. tuberculata*(p. 240), Texas, A. bosquensis*(Flickia? b. Adkins) (p. 242), A.semiplicata* (p. 246), Texas, Euhystrichoceras remolinense* (p. 247), Mexico, Mantelliceras mantelli* Sowerby, M.laticlavium v. mexicanum* (p. 253), Mexico, BUDAICERAS (p. 255), (Acanthoceratidae) (genotype B. mexicanum*, p. 259, Mexico). Upper Turonian: Prionotropis woollgari v. mexicana* (p. 262) Mexico. Coniacian: Proplacenticeras aff. fritschi* Gross. Peroniceras. aff. subtricarinatum* D'Orbigny. Upper Santonian: Gau-dryceras kayei* Forbes, Placenticeras syrtale* Morton. Campanian: Placenticeras whitfieldi* Hyatt. Maes-trichtian: COAHUILITES (p. 279), resembling Liby-coceras and Sphenodiscus, (genotype C. sheltoni*, p. 283 Mexico), C. orynskii* (p. 287) and C. cavinsi*(p. 290), Mexico, Sphenodiscus lenticularis* Owen, S. intermedius* (p. 295), S. prepleurisepta* (p. 298) and S. aberrans*(p. 301), Mexico, S. pleurisepta* Conrad, Parapachydiscus cf. colligatus* Binkh.

Accession: 024417848

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Related references

Ammonites of the Buda limestone Cretaceous, Texas and Mexico. Texas Journal of Science 14: 420-421, 1962

Upper Albian (Cretaceous, M. romeri Zone) ammonites in Texas and Mexico. Journal of Paleontology 42(1): 70-80, 1968

Lower Cenomanian and Late Albian (Cretaceous) ammonites, especially Lyelliceridae, of Texas and Mexico. Bulletin of the Texas Memorial Museum 26: 1-99, 1978

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The Albian-Cenomanian (Lower Cretaceous-Upper Cretaceous) boundary in Texas and northern Mexico. Journal of Paleontology 60(6): 1212-1219, 1986

The Cretaceous and Tertiary of southern Texas and northern Mexico. University of Texas Bulletin 2748: 7-142, 1927

Further contributions to the knowledge of the Cretaceous of Texas and northern Mexico. Geological Society of America Bulletin: 72-73, 1923

Cretaceous and Tertiary of southern Texas and northern Mexico. Bulletin of the American Association of Petroleum Geologists 12(9): 949-950, 1928

Cretaceous Buda Limestone in West Texas and northern Mexico. GCSSEPM Foundation Special Publications in Geology 1: 337-373, 2003

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