Terebratula Temporal range: | |
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Terebratula maugerii from the Upper Miocene of Cordoba, Spain. | |
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Genus: | Terebratula Müller, 1776 |
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Terebratula is a modern genus of brachiopods with a fossil record dating back to the Late Devonian. These brachiopods are stationary epifaunal suspension feeders and have a worldwide distribution.
Terebratula species have biconvex egg-shaped shells, anterior margins of the valves have two small folds, concentric growth lines are quite thin or nearly absent. The larger valve has a ventral umbo with the opening through which they extend a short peduncle. [1]
As Terebratula has been erected early on in paleontology, many species have since been reassigned to other genera. [2]
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Congosaurus is an extinct genus of dyrosaurid mesoeucrocodylian. Fossils have been found from Lândana, in Angola and date back to the Paleocene epoch. In 1952 and 1964 Congosaurus was proposed to be synonymous with Dyrosaurus. The genus was later thought synonymous with Hyposaurus in 1976 and 1980. It has since been proven a distinct genus of dyrosaurid separate from both Dyrosaurus and Hyposaurus.
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Camarotoechia is an extinct genus of brachiopods found in Paleozoic strata.
Crania is an extinct genus of brachiopods that lived during the Upper Cretaceous.
Hensodon spinosus is an extinct pycnodontid that lived during the Upper Cenomanian of what is now Lebanon. H. spinosus superficially resembled a marine angelfish with a massive head, and a very spiny pectoral girdle. Different specimens have different arrangements of the horn-like frontal spines. One form has the horns arranged as a double-prong, assumed to be the male, and the other form, assumed to be the female, having the horns one after the other, like those of a rhinoceros.
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