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Dyscoliidae
Dyscoliidae is a family of brachiopods belonging to the order Terebratulida. Genera Genera: * '' Abyssothyris'' Thomson, 1927 * †''Acrobelesia ''Acrobelesia'' is a monotypic genus of brachiopods belonging to the family Dyscoliidae Dyscoliidae is a family of brachiopods belonging to the order Terebratulida. Genera Genera: * ''Abyssothyris ''Abyssothyris'' is a genus of brachiopo ...'' Cooper, 1983 * '' Ceramisia'' Cooper, 1983 References {{Taxonbar, from=Q3543244 Brachiopods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abyssothyris
''Abyssothyris'' is a genus of brachiopods belonging to the family Dyscoliidae. Species: *''Abyssothyris briggsi'' *''Abyssothyris wyvillei ''Abyssothyris'' is a genus of brachiopods belonging to the family Dyscoliidae. Species: *'' Abyssothyris briggsi'' *'' Abyssothyris wyvillei'' References Brachiopod genera Terebratulida {{brachiopod-stub ...'' References Brachiopod genera Terebratulida {{brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrobelesia
''Acrobelesia'' is a monotypic genus of brachiopods belonging to the family Dyscoliidae Dyscoliidae is a family of brachiopods belonging to the order Terebratulida. Genera Genera: * ''Abyssothyris ''Abyssothyris'' is a genus of brachiopod Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have har .... The only species is ''Acrobelesia cooperi''. The species is found in Europe. References {{Taxonbar, from1=Q15728231, from2=Q2474106 Terebratulida Brachiopod genera Monotypic brachiopod genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachiopods
Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major categories are traditionally recognized, articulate and inarticulate brachiopods. The word "articulate" is used to describe the tooth-and-groove structures of the valve-hinge which is present in the articulate group, and absent from the inarticulate group. This is the leading diagnostic skeletal feature, by which the two main groups can be readily distinguished as fossils. Articulate brachiopods have toothed hinges and simple, vertically-oriented opening and closing muscles. Conversely, inarticulate brachiopods have weak, untoothed hinges and a more complex system of vertical and oblique (diagonal) muscles used to keep the two valves aligned. In many brachiopods, a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terebratulida
Terebratulids are one of only three living orders of articulate brachiopods, the others being the Rhynchonellida and the Thecideida. Craniida and Lingulida include living brachiopods, but are inarticulates. The name, Terebratula, may be derived from the Latin "terebra", meaning "hole-borer". The perceived resemblance of terebratulid shells to ancient Roman oil lamps gave the brachiopods their common name "lamp shell". Terebratulids typically have biconvex shells that are usually ovoid to circular in outline. They can be either smooth or have radial ribbing. The lophophore support is loop shaped in contrast to the spiralia of similar looking spiriferids. Terebratulids are also distinguished by a very short hinge line, and the shell is punctate in microstructure. There is a circular pedicle opening, or foramen, located in the beak. Terebratulids may have evolved from Atrypids during the early or Middle Silurian. Early genera were almost circular to elongate-oval, with smooth or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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