GetWiki

factoids

Denne, R. A., Breyer, J. A., Callender, A. D., Hinote, R. E., Kariminia, M., Kosanke, T. H., Kita, Z., Lees, J. A., Rowe, H., Spaw, J. M., and Tur, N. (2016) Biostratigraphic and geochemical constraints on the stratigraphy and depositional environments of the Eagle Ford and Woodbine Groups of Texas: in Breyer, J. A. (ed.), The Eagle Ford Shale: A renaissance in U.S. oil production, AAPG Memoir 110, p. 1-86.| period = Cenomanian| prilithology = Shale| otherlithology = Marl, limestone, sandstone, volcanic ash beds| namedfor = Britton, TexasAdkins, W. S. (1932) The Mesozoic systems in Texas, in E. H. Sellards, W. S. Adkins, and F. B. Plummer, eds., University of Texas Bulletin 3232, 1007 p.| namedby = W. L. Moreman| region = East TexasUnited States}}| coordinates =| unitof = Eagle Ford Group| subunits =| underlies = Arcadia Park Shale| overlies = Tarrant Formation| thickness =| extent =| area =| map =| map_caption =}}The Britton Formation is a geologic formation deposited during the Middle Cenomanian to the Early Turonian ages of the Late Cretaceous in modern-day East Texas. It forms the lower half of the Eagle Ford Group in the northern portion of East Texas. The formation was named by W. L. Moreman in 1932 for outcrops on Mountain Creek near the small town of Britton, south of Dallas. In the Dallas area it has been subdivided into the Six Flags Limestone, Turner Park Member, and Camp Wisdom Member.Reaser, D. F. (2002) Geology of the Dallas-Ft. Worth Metroplex and local geologic/meteorologic hazards: Upper Saddle River, New Jersey, Pearson Custom Publishing, 193 p. The Six Flags Limestone is a 3 ft (1 m) thick fossiliferous calcarenite made up of pieces (prisms) of Inoceramus clams.Norton, G. H. (1965) Surface geology of Dallas County, in The geology of Dallas County: Dallas Geological Society, Dallas, Texas, p. 40–125. The Turner Park and Camp Wisdom Members were subdivided based on the numerous volcanic ash beds (bentonites) found in the Turner Park, and the common occurrence of concretions in the Camp Wisdom. They are approximately 120 ft (37 m) (Turner Park) and 250 ft (76 m) (Camp Wisdom) thick in the Dallas area. Thin sandstones known as the Templeton Member are found in Grayson County, north of Dallas, that are age equivalent to the lower part of the Turner Park Member. The Templeton Member was originally described as a part of the Woodbine,Bergquist, H. R. (1949) Geology of the Woodbine Formation of Cooke, Grayson, and Fannin Counties, Texas: USGS, Oil and Gas Investigation, Preliminary Map 98. but it was recently placed in the Britton Formation of the Eagle Ford Group based on its age as derived by ammonites.Plesiosaur remains are among the vertebrate fossils that have been recovered from its strata.Timothy S. Myers (2015) First North American occurrence of the toothed pteranodontoid pterosaur Cimoliopterus. Journal of Vertebrate of Paleontology (advance online publication) DOI:10.1080/02724634.2015.1014904www.tandfonline.com/doi/full/10.1080/02724634.2015.1014904

Paleofauna

Vertebrate fossils found in the Britton Formation include plesiosaurs and shark teeth.Invertebrate fossils found in the Britton Formation include crustaceans, ammonites, Inoceramus, foraminifera, and ostracods.Stenzel, H. B. (1952) Decapod crustaceans from the Woodbine Formation of Texas: USGS Professional Paper 242, p. 212-217.{| class=“wikitable” align=“center” width=“100%”! colspan=“7” align=“center” |Archosaurs of the Britton Formation! Genus! Species! Location! Stratigraphic position! Abundance! Notes! Images|Cimoliopterus|C. dunni||||A pteranodontoid.File:Pterodactylus cuvieri.jpg|thumb|center|200px|CimoliopterusCimoliopterus

References

{{reflist}}

See also

• Plesiosaur stratigraphic distribution

- content above as imported from Wikipedia
- "Britton Formation" does not exist on GetWiki (yet)
- time: 7:21am EDT - Wed, May 22 2024