| Graphiadactyllis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Ostracoda |
| Order: | Podocopida |
| Family: | † Quasillitidae |
| Genus: | † Graphiadactyllis |
| Species | |
See text | |
Graphiadactyllis is an extinct genus of ostracod (seed shrimp) belonging to the family Quasillitidae and order Podocopida. [1] [2] Specimens have been found in Mississippian [3] to Permian [1] beds in North America, [3] Europe, [1] and Australia. [4]
The Permian Basin is a large sedimentary basin in the southwestern part of the United States. It is the highest producing oil field in the United States, producing an average of 4.2 million barrels of crude oil per day in 2019. This sedimentary basin is located in western Texas and southeastern New Mexico. It reaches from just south of Lubbock, past Midland and Odessa, south nearly to the Rio Grande River in southern West Central Texas, and extending westward into the southeastern part of New Mexico. It is so named because it has one of the world's thickest deposits of rocks from the Permian geologic period. The greater Permian Basin comprises several component basins; of these, the Midland Basin is the largest, Delaware Basin is the second largest, and Marfa Basin is the smallest. The Permian Basin covers more than 86,000 square miles (220,000 km2), and extends across an area approximately 250 miles (400 km) wide and 300 miles (480 km) long.
Ostracods, or ostracodes, are a class of the Crustacea, sometimes known as seed shrimp. Some 33,000 species have been identified, grouped into 7 valid orders. They are small crustaceans, typically around 1 mm (0.04 in) in size, but varying from 0.2 to 30 mm in the case of the marine Gigantocypris. The largest known freshwater species is Megalocypris princeps, which reach 8mm in length. In most cases, their bodies are flattened from side to side and protected by a bivalve-like valve or "shell" made of chitin, and often calcium carbonate. The family Entocytheridae and many planktonic forms do not have calcium carbonate. The hinge of the two valves is in the upper (dorsal) region of the body. Ostracods are grouped together based on shell and soft part morphology. While early work indicated the group may not be monophyletic and early molecular phylogeny was ambiguous on this front, recent combined analyses of molecular and morphological data suggested monophyly in analyses with broadest taxon sampling, but this monophyly had no or very little support. They have a wide range of diets, and the class includes carnivores, herbivores, scavengers and filter feeders, but most ostracods are deposit feeders.
The Fayetteville Shale is a geologic formation of Mississippian age composed of tight shale within the Arkoma Basin of Arkansas and Oklahoma. It is named for the city of Fayetteville, Arkansas, and requires hydraulic fracturing to release the natural gas contained within.
Paleontology in Oklahoma refers to paleontological research occurring within or conducted by people from the U.S. state of Oklahoma. Oklahoma has a rich fossil record spanning all three eras of the Phanerozoic Eon. Oklahoma is the best source of Pennsylvanian fossils in the United States due to having an exceptionally complete geologic record of the epoch. From the Cambrian to the Devonian, all of Oklahoma was covered by a sea that would come to be home to creatures like brachiopods, bryozoans, graptolites and trilobites. During the Carboniferous, an expanse of coastal deltaic swamps formed in areas of the state where early tetrapods would leave behind footprints that would later fossilize. The sea withdrew altogether during the Permian period. Oklahoma was home a variety of insects as well as early amphibians and reptiles. Oklahoma stayed dry for most of the Mesozoic. During the Late Triassic, carnivorous dinosaurs left behind footprints that would later fossilize. During the Cretaceous, however, the state was mostly covered by the Western Interior Seaway, which was home to huge ammonites and other marine invertebrates. During the Cenozoic, Oklahoma became home to creatures like bison, camels, creodonts, and horses. During the Ice Age, the state was home to mammoths and mastodons. Local Native Americans are known to have used fossils for medicinal purposes. The Jurassic dinosaur Saurophaganax maximus is the Oklahoma state fossil.
Ph.D Ali A.F. AL-Furaih was a geology professor at King Saud University. Born in Bukayriyah, Saudi Arabia.
The Cherry Canyon Formation is a geologic formation found in the Delaware Basin of southeastern New Mexico and western Texas. It contains fossils characteristic of the Guadalupian Age of the Permian Period.
The Abo Formation is a geologic formation in New Mexico. It contains fossils characteristic of the Cisuralian epoch of the Permian period.
This list of fossil arthropods described in 2015 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that have been described during the year 2015. The list only includes taxa at the level of genus or species.
Cladodus is an extinct genus of cartilaginous fishes in the family Ctenacanthidae. As the name implies, they are a type of cladodont, primitive sharks with teeth designed to snag fish and swallow them whole, instead of sawing off chunks to swallow.
Palaeocopida is an order of ostracods in the subclass Podocopa. Most species in the suborder are extinct, and only the genera Manawa, Promanawa and Puncia in the family Punciidae are extant. The members of the family lives in high-energy shallow marine environments of New Zealand.
This list of fossil arthropods described in 2017 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that are scheduled to be described during the year 2017, as well as other significant discoveries and events related to arthropod paleontology that are scheduled to occur in the year 2017.
Betty Kellett Nadeau, born Elizabeth Rosina Kellett, was an American paleontologist and micro-paleontologist who studied Palaeozoic ostracod. Numerous marine species were discovered due to the work she had done throughout her fruitful career. This work is evident to the genus Bekena named after her.
The Rub' al Khali Basin or ar-Rubʻ al-Khālī / ar-rubʿ al-ḵālī Basin, Arabic for "Empty Quarter Basin", is a major endorheic sedimentary basin of approximately 560,000 square kilometres (220,000 sq mi) in southern Saudi Arabia, northeastern Yemen, southeastern Oman and southeasternmost United Arab Emirates. The onshore foreland on Mesozoic rift basin is geographically defined by the eponymous Rub' al Khali and covers the regions of Najran and Riyadh and the Eastern Province. The basin is geologically bound by the Central Arabian Arch in the north, the Oman Thrust in the east, the Northern Hadramaut Arch in the south, and the Arabian Shield in the west. Politically, the southwestern boundary is formed by the border with Yemen and the border with Oman forms the southeastern boundary.
Crurithyris is an extinct genus of brachiopod belonging to the order Spiriferida and family Ambocoeliidae.
Beecheria is an extinct genus of brachiopod belonging to the order Terebratulida and family Beecheriidae. Fossils of this genus have been found in Mississippian to Permian beds in Eurasia, Australia, North America, and South America. The genus was part of the Levipustula fauna characteristic of cold water conditions. "Nests" of Beecheria have been found in fossil low temperature hydrothermal vent communities from the early Carboniferous in Newfoundland.
Amphissites is an extinct genus of ostracod belonging to the suborder Beyrichicopina and family Amphissitinae. Species belonging to the genus lived from the Devonian to the Permian in Europe, North America, Australia, and east Asia. The genus were likely deposit-feeders, and may have survived briefly into the Triassic.
Aurikirkbya is an extinct genus of ostracod belonging to the suborder Beyrichicopina and family Kirkbyidae. It is found in Pennsylvanian to Triassic beds in North America, east Asia, southwest Asia, and Europe.
Ceratobairdia is an extinct genus of ostracod belonging to the order Podocopida and family Bairdiidae. Specimens have been found in Permian to Jurassic beds in North America, China, and Europe.
Polytylites is an extinct genus of ostracod belonging to the order Palaeocopida and family Amphissitidae. Specimens have been found in beds of Carboniferous to Permian age in North America and Asia.
Roundyella is an extinct genus of ostracod belonging to the order Leperditellocopida and family Scrobiculidae. Specimens have been found in beds of Devonian to Triassic age in Australia, Asia, Europe, North America, and South America.
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