| Terebrataliidae | |
|---|---|
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| Coptothyris grayi | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Brachiopoda |
| Class: | Rhynchonellata |
| Order: | Terebratulida |
| Family: | Terebrataliidae Richardson, 1975 |
Terebrataliidae is a family of brachiopods belonging to the order Terebratulida. [1]
 | This section needs expansion. You can help by adding to it. (June 2021) |
Genera: [1]
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 stalk-like pedicle projects from an opening near the hinge of one of the valves, known as the pedicle or ventral valve. The pedicle, when present, keeps the animal anchored to the seabed but clear of sediment which would obstruct the opening.
Coptothyris is a monotypic genus of brachiopods belonging to the family Terebrataliidae. The only species is Coptothyris grayi.
Dallinella is a genus of brachiopods belonging to the family Terebrataliidae.
Terebratalia is a genus of brachiopods belonging to the family Terebrataliidae.
Tythothyris is a monotypic genus of brachiopods belonging to the family Terebrataliidae. The only species is Tythothyris rosimarginata.
Terebratalia transversa or the North Pacific Lampshell is a species of marine brachiopod in the family Terebrataliidae. A two-valved shelled species, they are most frequently found in tidal habitats in the Pacific Northwest of the United States.
| Authority control databases: National |
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