| Encrinasteridae Temporal range: | |
|---|---|
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| Fossils of Encrinaster arnoldi | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Ophiuroidea |
| Family: | † Encrinasteridae Schuchert, 1914 |
| Subgroups | |
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Encrinasteridae is an extinct family of brittle stars. It was erected in 1914 by Charles Schuchert, and the type genus is Encrinaster .
The family Encrinasteridae was originally named by Charles Schuchert in 1914 as a monotypic group containing only the genus Encrinaster . [1] Later authors assigned more genera to the family, and two subfamilies, Encrinasterinae and Armathyrasterinae, were proposed based primarily on the arrangement of the adambulacrals (ossicles lying along the ambulacral grooves) in 1978. [2]
Othniel Charles Marsh was an American professor of Paleontology in Yale College and President of the National Academy of Sciences. He was one of the preeminent scientists in the field of paleontology. Among his legacies are the discovery or description of dozens of new species and theories on the origins of birds.
The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences.
Hallopus was a prehistoric reptile, named in 1877 as a species of Nanosaurus and classified as a genus by O. C. Marsh in 1881 from the Late Jurassic Morrison Formation. Today though the animal is thought to be a pseudosuchian more closely related to crocodilians. It was redescribed as a sphenosuchian crocodylomorph in 1970, now thought to be a paraphyletic group. It was a quite small animal, reaching a length of 1 m (3.3 ft) with long and slender limbs. Macelognathus, a similarly slender-proportioned crocodylomorph to Hallopus, may be synonymous with it.
Charles Schuchert was an American invertebrate paleontologist who was a leader in the development of paleogeography, the study of the distribution of lands and seas in the geological past.
The Batrachedridae are a small family of tiny moths. These are small, slender moths which rest with their wings wrapped tightly around their bodies.
Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known and heavily discussed group. It has also been called Gymnoblastea and, Anthomedusa, Athecata, Hydromedusa, and Stylasterina. There are about 1,200 species worldwide.
The Charles Schuchert Award is presented by the Paleontological Society to a person under 40 whose work reflects excellence and promise in the science of paleontology. The award was made in honor of Charles Schuchert, an American invertebrate paleontologist.
Rhopalonematidae is a family of hydrozoans. The family comprises 15 genera and 36 species.
Csiromedusa medeopolis is a species of hydrozoan described in 2010. It was discovered in the estuarine waters of the River Derwent near to the Commonwealth Scientific and Industrial Research Organisation's Marine and Atmospheric Research branch in Hobart, Tasmania, Australia. C. medeopolis has been described as presenting a new family and genus as well as species.
Agalmatidae, or Agalmidae, is a family of siphonophores.
Bougainvillia is a genus of hydroids in the family Bougainvilliidae in the class Hydrazoa. Members of the genus are characterised by having the marginal tentacles of their medusae arranged in four bundles. Some species are solitary and others are colonial but all are filter feeders. They are found in the Southern Ocean, having a circumpolar distribution, but some species also occur in the Northern Hemisphere, possibly travelling there as polyps on the hulls of ships.
Eudendrium is a large genus of hydroids (Hydrozoa), one of two in the family Eudendriidae. These animals are marine cnidarias in the family Eudendriidae.
Ectopleura is a genus of hydrozoans in the family Tubulariidae.
Capitata is a suborder of Hydrozoa, a class of marine invertebrates belonging to the phylum Cnidaria.
Cordylophora is the sole genus of hydrozoans in the monotypic family Cordylophoridae.
Corymorpha is a genus of hydrozoans in the family Corymorphidae.
Leuckartiara is a genus of cnidarians belonging to the family Pandeidae.
Paracoryne is a monotypic genus of cnidarians belonging to the monotypic family Paracorynidae.
Podiceps oligoceanus is an extinct species of grebe possibly from the Neogene period which the specimen has been found in the United States.
Marginix is an extinct genus of brittle star in the family Encrinasteridae.
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