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Gwynia
''Gwynia'' is a genus of very small to minute brachiopods.Voskuil, R. P. A. (2004). De Recente en Tertiaire Brachiopoden van het Nederlandse strand: een inventarisatie van de literatuur en commentaar op het vermeende voorkomen van ''Gwynia capsula'' (Jeffreys, 1859) in Zeeuws-Vlaanderen. ''Het Zeepaard'' 64(2):45-58 Species There are two species in the genus:Emig C. C., Bitner M. A. & Álvarez F., 2019 Brachiopoda database. Accessed 2020-09-27. * ''Gwynia capsula'' (Jeffreys, 1859) * ''Gwynia macrodentata ''Gwynia'' is a genus of very small to minute brachiopods.Voskuil, R. P. A. (2004). De Recente en Tertiaire Brachiopoden van het Nederlandse strand: een inventarisatie van de literatuur en commentaar op het vermeende voorkomen van ''Gwynia capsu ...'' Lüter, 2008 References Terebratulida Brachiopod genera Extant Pleistocene first appearances {{brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gwynia Capsula
''Gwynia capsula'' is a very small to minute brachiopod (maximally long), currently known from the east Atlantic (France, Belgium, British Isles),Voskuil, R. P. A. (2004). De Recente en Tertiaire Brachiopoden van het Nederlandse strand: een inventarisatie van de literatuur en commentaar op het vermeende voorkomen van ''Gwynia capsula'' (Jeffreys, 1859) in Zeeuws-Vlaanderen. ''Het Zeepaard'' 64(2):45-58 but which occurred during the Pleistocene in what is now Norway. It has a translucent, whitish, purse-shaped shell with relatively large, wide-spaced pits (or punctae). It lives attached to stones or shells (fragments) in between large grains of sand. Like in all brachiopods, it filters food particles, chiefly diatoms and dinoflagellates. ''Gwynia capsula'' harbors a small number of larvae inside a brood pouch, but it has separate sexes, unlike also very small and pouch brooding brachiopods ''Argyrotheca ''Argyrotheca'' is a genus of very small to minute lampshells (maximum l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gwynia Macrodentata
''Gwynia'' is a genus of very small to minute brachiopods.Voskuil, R. P. A. (2004). De Recente en Tertiaire Brachiopoden van het Nederlandse strand: een inventarisatie van de literatuur en commentaar op het vermeende voorkomen van ''Gwynia capsula'' (Jeffreys, 1859) in Zeeuws-Vlaanderen. ''Het Zeepaard'' 64(2):45-58 Species There are two species in the genus:Emig C. C., Bitner M. A. & Álvarez F., 2019 Brachiopoda database. Accessed 2020-09-27. * ''Gwynia capsula'' (Jeffreys, 1859) * ''Gwynia macrodentata ''Gwynia'' is a genus of very small to minute brachiopods.Voskuil, R. P. A. (2004). De Recente en Tertiaire Brachiopoden van het Nederlandse strand: een inventarisatie van de literatuur en commentaar op het vermeende voorkomen van ''Gwynia capsu ...'' Lüter, 2008 References Terebratulida Brachiopod genera Extant Pleistocene first appearances {{brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachiopod
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachiopod Genera
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] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchonelliformea
Rhynchonelliformea is a major subphylum and clade of brachiopods. It is equivalent to the former class Articulata, which was used previously in brachiopod taxonomy. Articulate brachiopods have many anatomical differences relative to "inarticulate" brachiopods of the subphyla Linguliformea and Craniformea. Articulates have hard calcium carbonate shells with tongue-and-groove hinge articulations (hence the name) and separate sets of simple opening and closing muscles. The name, Rhynchoelliformea, which replaces Articulata, which is also a class of crinoids, comes from the family Rhynchonellidae, which however is no more representative of articulate brachiopods than any other group such as spirifers or strophomenids. It just happens to be the name chosen, based on an included taxon. The main difference between the Rhynchonelliformea described in the Treatise Part H, revised 2000/2007, and the Articulata of the Treatise part H, 1965, lies in the groups included, their taxonomic po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchonellata
The Rhynchonellata is a class of Lower Cambrian to Recent articulate brachiopods that combines orders from within the Rhynchonelliformea (Articulata revised) with well developed pedicle attachment. Shell forms vary from those with wide hinge lines to beaked forms with virtually no hinge line and from generally smooth to strongly plicate. Most all are biconvex. Lophophores vary and include both looped and spiraled forms. Although morphologically distinct, included orders follow a consistent phylogenetic sequence. Orders Orders assigned to the Rhynchonellata, in temporal sequence, include: * Protorthida ''L Camb - U Dev'' * Orthida ''L Camb - U Perm'' * Pentamerida ''M Camb - U Dev'' * Atrypida ''L Ord - U Dev'' * Rhynchonellida ''L Ord -Rec'' * Spiriferida ''U Ord - U Perm'' * Athyridida ''U Ord - L Jura'' * Spiriferinida ''L Dev - L Jura'' * Terebratulida ''L Dev - Rec'' * Thecideida ''U Trias - Rec'' The Atrypida, Athyridida, Spiriferida, and Spiriferinida were pr ... [...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] |
Terebratellidina
Terebratellidina is one of two existing suborders of Terebratulid brachiopods, the other being Terebratulidina. Classification * Superfamily Kraussinoidea * Superfamily Laqueoidea * Superfamily Megathyridoidea * Superfamily Platidioidea * Superfamily Terebratelloidea ** Family Dallinidae ** Family Ecnomiosidae ** Family Terebratellidae ** Family Thaumatosiidae * Superfamily Zeillerioidea * Superfamily Bouchardioidea * Superfamily Gwynioidea * Superfamily Kingenoidea * Superfamily ''Incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...'' ** Family Tythothyrididae References World Register of Marine Speciesaccessed 17 May 2011 Protostome suborders Terebratulida {{Brachiopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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