Key Bivalves of the Lower Albian Glen Rose Formation, Texas, U.S.A.

Author(s):  
ROBERT W. SCOTT
Keyword(s):  
1991 ◽  
Vol 65 (1) ◽  
pp. 167-170 ◽  
Author(s):  
Phillip A. Murry ◽  
Dale A. Winkler ◽  
Louis L. Jacobs

Pterosaurs are rare components of Texas Cretaceous faunas. The best known is Quetzalcoatlus northropi, from the Javelina Formation (Maastrichtian) of Big Bend National Park, with a wingspan of some 11-12 m (Lawson, 1975; Langston, 1986; Busbey and Lehmann, 1989). Texas pterosaur specimens of less spectacular proportions include a pteranodontid partial humerus (USNM 13804) from the Eagle Ford Formation (late Cenomanian-late Turonian) of Austin (Gilmore, 1935; Bennett, 1989) and a first wing phalanx of a pterodactyloid from the Buda Formation (Cenomanian) of Hays County (Langston, 1974; Lawson, 1975). Pterosaur bones were also recorded at localities near Forestburg, Montague County (Zangerl and Denison, 1950), in the Antlers Formation (Winkler et al., 1990), although these specimens are undiagnostic hollow bone fragments.


2019 ◽  
Vol 93 (2) ◽  
pp. 244-259
Author(s):  
Silviu O. Martha ◽  
Paul D. Taylor ◽  
William L. Rader

AbstractThe Glen Rose and Walnut formations of southcentral and northcentral Texas comprise shallow-water carbonates deposited during the late Aptian to middle Albian on a carbonate platform. The formations are famous for their rich fossil faunas. Although bryozoans are absent in late Aptian sediments, they are frequently found encrusting bivalve shells from the early to middle Albian parts of these formations. Here, we describe the cyclostome bryozoan fauna, which includes six species;Stomatoporasp.,Oncousoecia khirarn. sp.,Reptomultisparsa mclemoreaen. sp.,Hyporosopora keeran. sp.,Mesonopora bernardwalterin. sp., and ?Unicaveasp. Most cyclostomes are found encrusting rudist shells from Unit 2 of the Lower Member of the Glen Rose Formation and units 3 and 6 of the Upper Member of the Glen Rose Formation.UUID:http://zoobank.org/4380dcb5-63b2-4aa9-959c-09eb6b03831f


Earth ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 36-48
Author(s):  
Adewale Amosu ◽  
Mohamed Imsalem ◽  
Anne Raymond ◽  
Yuefeng Sun

Fischer plots are a technique that is used to graph changes in accommodation in cyclic carbonate successions. They typically depict the cumulative departure from the average cycle thickness as a function of the cycle number or stratigraphic depth. Many applications of Fischer plots focus on their construction from exposed cyclic carbonate successions. No published programs allow the direct construction of Fischer plots from digital wireline well-logs or dynamic presentations of Fischer plots. Here, we introduce a program known as FischerLab, which facilitates the generation and analysis of Fischer plots. In addition to accepting interpreted stratigraphic data input, FischerLab facilitates the interpretation of digital wireline logs for the generation of Fischer plots in cycle and depth domains, as well as in a dynamic evolving cycle and relative depth domain from an easy-to-use interface. The dynamic construction facilitates the correlation of specific stratigraphic packages to parts of the accommodation cycle while simultaneously tracking the locus of the mean subsidence vector. We demonstrate the use of FischerLab on data derived from the carbonate succession outcrops of the Al-Athrun Formation, Libya, and the Glen Rose Formation, Central Texas, USA, as well as on wireline well-log data from the Western Great Bahama Bank, the Bahamas.


Ichnos ◽  
2019 ◽  
Vol 27 (2) ◽  
pp. 167-199
Author(s):  
James O. Farlow ◽  
Robert T. Bakker ◽  
Benjamin F. Dattilo ◽  
E. Everett Deschner ◽  
Peter L. Falkingham ◽  
...  

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