Platidiidae

	Platidiidae Platidiidae is a family of brachiopods belonging to the order Terebratulida. Genera Genera: * '' Aemula'' Steinich, 1968 * ''Amphithyris ''Amphithyris'' is a genus of 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. Brach ...'' Thomson, 1918 * '' Annuloplatidia'' Zezina, 1981 References {{Taxonbar, from=Q3544765 Terebratulida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Aemula ''Aemula'' is an extinct genus of brachiopods that lived during the Cretaceous period. The pedunculate brachiopod species '' Aemula inusitata'' had lived on the bodies of larger animals which served for enough feeding surface, since no large attachment sites were available on the Maastrichtian chalk of the sea floor (Gould, 1977, p. 333). It was a very small animal, having a maximum length of 7 mm, and is believed to have been short lived as interpreted from its growth lines (Surlyk, 1974; Gould, 1977, p. 332). References * * * * External links ''Aemula''in the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database (PBDB) originated in the NCEAS-funded Phanerozoic Marine Pale ... Prehistoric brachiopod genera Cretaceous animals of Europe Terebratulida {{Brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Amphithyris ''Amphithyris'' is a genus of 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, whi ... belonging to the family Platidiidae. The species of this genus are found in Australia and New Zealand. Species: '' Amphithyris buckmani'' '' Amphithyris cavernicola'' '' Amphithyris comitodentis'' '' Amphithyris hallettensis'' '' Amphithyris parva'' '' Amphithyris richardsonae'' '' Amphithyris richardsoni'' '' Amphithyris seminula'' References {{Taxonbar, from=Q3543673 Brachiopod genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Annuloplatidia ''Annuloplatidia'' is a genus of brachiopods belonging to the family Platidiidae Platidiidae is a family of brachiopods belonging to the order Terebratulida. Genera Genera: * '' Aemula'' Steinich, 1968 * ''Amphithyris ''Amphithyris'' is a genus of brachiopods Brachiopods (), phylum Brachiopoda, are a phylum of trochoz .... The species of this genus are found in Northern America. Species: '' Annuloplatidia annulata'' '' Annuloplatidia curiosa'' '' Annuloplatidia horni'' '' Annuloplatidia indopacifica'' '' Annuloplatidia richeri'' References {{Taxonbar, from=Q3544358 Brachiopod genera ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
picture info	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]