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Woodbine Group
The Woodbine Group is a geological formation in east Texas whose strata date back to the Early to Middle Cenomanian age of the Late Cretaceous. It is the producing formation of the giant East Texas Oil Field (also known as the "Black Giant") from which over 5.42 billion barrels of oil have been produced. The Woodbine overlies the Maness Shale, Buda Limestone, or older rocks, and underlies the Eagle Ford Group or Austin Chalk. In outcrop the Woodbine Group has been subdivided into the Lewisville Sandstone, Dexter Sandstone, and/or Pepper Shale formations. Thin-bedded sands of the Woodbine and Eagle Ford are collectively referred to as the "Eaglebine" oil and gas play in the southwestern portion of the East Texas region. Dinosaur and crocodilian remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." ''in'' Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austin Chalk
The Austin Chalk is an upper Cretaceous geologic formation in the Gulf Coast region of the United States. It is named after type section outcrops near Austin, Texas. The formation is made up of chalk and marl. Fossils The putative galloanseran bird '' Austinornis lentus'' has been found in the Austin Chalk.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607. The general absence of dinosaurs is a reflection of the Austin limestone being marine in origin, primarily composed of microscopic shell fragments from floating sea organisms known as "coccolithophores" (the same organisms that contributed to the White Cliffs of Dover, on the south coast of England). Nevertheless, the Austin Chalk will occasionally produce fossils of larger creatures, such as '' Inoceramus'' clams, ammonite cephalopods, and large marine vertebrates such as ''Xiphactinus'', a predaceous fish. Geology The rocks of the Austin Chalk consist of recrystallized, fossiliferous, interbedded chalks a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deltasuchus
''Deltasuchus'' ("delta crocodile") is a genus of neosuchian crocodyliform from the Late Cretaceous of Texas, specifically in the Woodbine Formation, which was a part of the Appalachian continent during the Cretaceous. It is known from one species, ''D. motherali'', named in 2017 by Thomas Adams, Christopher Noto, and Stephanie Drumheller. It was a large crocodyliform with an estimated total body length of . In 2021, new material was described, allowing ''Deltasuchus'' to be placed within the family Paluxysuchidae as the sister taxon to ''Paluxysuchus ''Paluxysuchus'' is an extinct genus of neosuchian crocodyliform known from the Early Cretaceous Twin Mountains Formation (late Aptian stage) of north-central Texas. It contains a single species, ''Paluxysuchus newmani''. ''Paluxysuchus'' is one ...''. References Late Cretaceous crocodylomorphs of North America Fossil taxa described in 2017 Prehistoric pseudosuchian genera {{paleo-archosaur-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theropod
Theropoda (; from ancient Greek , (''therion'') "wild beast"; , (''pous, podos'') "foot"">wiktionary:ποδός"> (''pous, podos'') "foot" is one of the three major groups (clades) of dinosaurs, alongside Ornithischia and Sauropodomorpha. Theropods, both extant and extinct, are characterized by hollow bones and three toes and claws on each limb. They are generally classed as a group of saurischian dinosaurs, placing them closer to sauropodomorphs than to ornithischians. They were ancestrally carnivorous, although a number of theropod groups evolved to become herbivores and omnivores. Members of the subgroup Coelurosauria and possibly some other or all theropods were covered in feathers. In the Jurassic, birds evolved from small specialized coelurosaurian theropods, and are currently represented by about 11,000 living species, making theropods the only group of dinosaurs alive today. Theropods first appeared during the Carnian age of the late Triassic period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodbinesuchus
''Woodbinesuchus'' (meaning "Woodbine Formation crocodile") is an extinct genus of goniopholidid mesoeucrocodylian. Its fossils have been recovered from the Cenomanian-age Upper Cretaceous Woodbine Formation of Texas. Crocodyliformes, Crocodyliform fossils are widespread in the formation. The holotype, type specimen of ''Woodbinesuchus'', Southern Methodist University, SMU 74626, came from near the base of the formation in Tarrant County, Texas, Tarrant County. It was found by Johnny Allen Byers (Ted & Mary's favorite boy) and J. Maurice in May 1990. The specimen includes the lower jaw and a variety of postcranial elements, such as vertebrae, limb bones, pectoral girdle, shoulder and pelvis, hip bones, and osteoderm, bony armor. The lower jaw was elongate and slender, with the two halves joined from the tip to the sixteenth teeth, and there was no mandibular fenestra. Yuong–Nam Lee named ''Woodbinesuchus'' in 1997, naming the type species ''W. byersmauricei'' to honor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dallasaurus
''Dallasaurus'' ("Dallas County, Texas, Dallas lizard") is a basal mosasauroid from the Upper Cretaceous of North America. Along with ''Russellosaurus'', ''Dallasaurus'' is one of the two oldest mosasauroid taxa currently known from North America. It is also one of the smallest known Mosasaurinae, mosasaurines, measuring approximately in length. Specimens The genus is based upon two partial skeletons recovered from the Arcadia Park Shale (lower Middle Turonian), approximately 15 meters above its contact with the older Kamp Ranch Limestone in Dallas County, Texas, Dallas County in north-central Texas. The holotype specimen (TMM 43209-1, Texas Memorial Museum, University of Texas at Austin) consists of an incomplete and disarticulated skull, along with considerable portions of the postcranial skeleton, making up about 80 percent of the animal. The second referred specimen (DMNH 8121-8125, 8143-8149, and 8161-8180, Dallas Museum of Natural History) lacks any skull material and con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower Mound, Texas
Flower Mound is an incorporated town located in Denton and Tarrant counties in the U.S. state of Texas. Located northwest of Dallas and northeast of Fort Worth adjacent to Grapevine Lake, the town derives its name from a prominent mound located in the center of town. After settlers used the site for religious camps during the 1840s, the area around Flower Mound was first permanently inhabited in the 1850s; however, residents did not incorporate until 1961. Although an effort to create a planned community failed in the early 1970s, Flower Mound's population increased substantially when Dallas/Fort Worth International Airport opened to the south in 1974. As of the 2020 United States census, the population was 75,956, reflecting a 17% increase over the 64,669 counted in the 2010 census. Of the Texas municipalities that label themselves "towns", Flower Mound has the largest population. Flower Mound was the only town with a population greater than 20,000 in the 2020 census. F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protohadros
''Protohadros'' (meaning "first hadrosaur") is a genus of herbivorous ornithischian dinosaur from the Late Cretaceous (Cenomanian stage). Gary Byrd, a part-time palaeontologist, discovered some remains of this euornithopod (ribs and an ungual) during early 1994 at Flower Mound, Denton County, north-central Texas. He informed professional palaeontologist Yuong-Nam Lee of the find, who arranged for the entire preserved fossil to be excavated. It was first reported upon in 1996 by Jason Head of the Dedman College of Humanities and Sciences, Southern Methodist University. The type species ''Protohadros byrdi'' was described and named by Head in 1998. The genus name is derived from Greek πρῶτος, ''protos'', "first", en ἁδρός, ''hadros'', "thick", a reference to the fact that Head considered the species the oldest known hadrosaur. The specific name honours Byrd. The holotype, specimen SMU 74582, of ''Protohadros'', was found in the Woodbine Formation, which dates t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampelognathus Coheni
''Ampelognathus'' (meaning "grapevine jaw") is an extinct genus of possibly rhabdodontomorph ornithopod dinosaurs from the Late Cretaceous (Cenomanian) Lewisville Formation of Texas. The type species is ''Ampelognathus coheni''. Discovery and naming The ''Ampelognathus'' holotype, DMNH 2021-05-02, was found in sediments of the Lewisville Formation of the Woodbine Group (Arlington or Tarrant Member), dated to the Cenomanian age of the Late Cretaceous period, in the Grapevine Lake emergency spillway of Tarrant County in Texas, United States. The specimen consists of a single, nearly-complete left dentary. It was found away from the holotype of the enantiornithean bird ''Flexomornis''. In 2023, Tykoski, Contreras & Noto described ''Ampelognathus coheni'' as a new genus and species of ornithopod dinosaur. The generic name, "''Ampelognathus''", combines the Greek words "''ampelos''", meaning "grapevine", and "''gnathos''", meaning "jaw", in reference to the type locality in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scolomastax
''Scolomastax'' is an extinct genus of paralligatorid neosuchian known from the Late Cretaceous Woodbine Formation in Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we .... It contains a single species, ''S. sahlsteini''. References {{Neosuchia, N. Paralligatoridae Cenomanian life Late Cretaceous crocodylomorphs of North America Fossil taxa described in 2019 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dallas Paleontological Society
Dallas () is a city in the U.S. state of Texas and the most populous city in the Dallas–Fort Worth metroplex, the List of Texas metropolitan areas, most populous metropolitan area in Texas and the Metropolitan statistical area, fourth-most populous metropolitan area in the United States at 7.5 million people. It is the most populous city in and the county seat, seat of Dallas County, Texas, Dallas County, covering nearly 386 square miles into Collin County, Texas, Collin, Denton County, Texas, Denton, Kaufman County, Texas, Kaufman, and Rockwall County, Texas, Rockwall counties. With a 2020 United States census, 2020 census population of 1,304,379, it is the List of United States cities by population, ninth-most populous city in the U.S. and the List of cities in Texas by population, third-most populous city in Texas after Houston and San Antonio. Located in the North Texas region, the city of Dallas is the main core of the largest metropolitan area in the Southern Unite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Texas At Arlington
The University of Texas at Arlington (UTA or UT Arlington) is a public research university in Arlington, Texas, United States. It is the second oldest university in the University of Texas System and was founded in 1895. It was in the Texas A&M University System for several decades until joining the University of Texas System in 1965. The university is classified among "R1: Doctoral Universities – Very high research activity". The fall 2024 campus enrollment consisted of 41,376 students making it the second largest university in the UT System after UT Austin, in North Texas and fifth-largest in Texas. UT Arlington is the third-largest producer of college graduates in Texas and offers over 180 baccalaureate, masters, and doctoral degree programs. UT Arlington participates in 15 intercollegiate sports as a Division I member of the NCAA and Western Athletic Conference. UTA sports teams have been known as the Mavericks since 1971. History Establishment (1895–1916) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
