Frieleiidae

	Frieleiidae Frieleiidae is a family of brachiopods belonging to the order Rhynchonellida. Genera Genera: * '' Abyssorhynchia'' Zezina, 1980 * ''Compsothyris ''Compsothyris'' 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. Brac ...'' Jackson, 1918 * '' Frieleia'' Dall, 1895 References {{Taxonbar, from=Q3542864 Brachiopods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Abyssorhynchia ''Abyssorhynchia'' is an extant brachiopod genus found in the Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen .... References External links * Rhynchonellida {{Brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Rhynchonellida The taxonomic order Rhynchonellida is one of the two main groups of living articulate brachiopods, the other being the order Terebratulida. They are recognized by their strongly ribbed wedge-shaped or nut-like shells, and the very short hinge line. The hinges come to a point, a superficial resemblance to many (phylogenetically unrelated) bivalve mollusk shells. The loss of the hinge line was an important evolutionary innovation, rhynchonellids being the first truly non-strophic shells with a purely internal articulation (teeth-sockets). Strong radiating ribs are common in this group; and there are generally very strong plications or accordion-like folds on the sulcus (the long middle section) of the shell. This probably helps regulate the flow of water in and out of the shell. All rhynchonellids are biconvex (have a bulbous shell), and have a fold located in the brachial valve. This means that the commissure, the line between the two valves or shells, is zigzagged, a dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Compsothyris ''Compsothyris'' 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 Frieleiidae. The species of this genus are found in southernmost South Hemisphere. Species: '' Compsothyris ballenyi'' '' Compsothyris racovitzae'' References {{Taxonbar, from=Q3545585 Brachiopod genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Frieleia ''Frieleia'' is a genus of brachiopods belonging to the family Frieleiidae Frieleiidae is a family of brachiopods belonging to the order Rhynchonellida. Genera Genera: * '' Abyssorhynchia'' Zezina, 1980 * ''Compsothyris ''Compsothyris'' is a genus of brachiopods Brachiopods (), phylum Brachiopoda, are a phylum o .... The species of this genus are found in Northern America. Species: '' Frieleia halli'' '' Frieleia pellucida'' References {{Taxonbar, from=Q3545987 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]