Tabulata, commonly known as tabulate corals, are an order of extinct forms of coral. They are almost always colonial, forming colonies of individual hexagonal cells known as corallites defined by a skeleton of calcite, similar in appearance to a honeycomb. Adjacent cells are joined by small pores. Their distinguishing feature is their well-developed horizontal internal partitions (tabulae) within each cell, but reduced or absent vertical internal partitions (septa). They are usually smaller than rugose corals, but vary considerably in shape, from flat to conical to spherical.
tabulata, commonly, known, tabulate, corals, order, extinct, forms, coral, they, almost, always, colonial, forming, colonies, individual, hexagonal, cells, known, corallites, defined, skeleton, calcite, similar, appearance, honeycomb, adjacent, cells, joined, . Tabulata commonly known as tabulate corals are an order of extinct forms of coral They are almost always colonial forming colonies of individual hexagonal cells known as corallites defined by a skeleton of calcite similar in appearance to a honeycomb Adjacent cells are joined by small pores Their distinguishing feature is their well developed horizontal internal partitions tabulae within each cell but reduced or absent vertical internal partitions septa They are usually smaller than rugose corals but vary considerably in shape from flat to conical to spherical TabulataTemporal range Ordovician Permian PreꞒ Ꞓ O S D C P T J K Pg NTabulate coral a syringoporid Boone Limestone Lower Carboniferous near Hiwasse Arkansas Scale bar is 2 0 cm Scientific classificationKingdom AnimaliaPhylum CnidariaSubphylum AnthozoaSubclass TabulataSuborders Auloporida Favositida HeliolitidaAround 300 species have been described Among the most common tabulate corals in the fossil record are Aulopora Favosites Halysites Heliolites Pleurodictyum Sarcinula and Syringopora Tabulate corals with massive skeletons often contain endobiotic symbionts such as cornulitids and Chaetosalpinx 1 2 Like rugose corals they lived entirely during the Paleozoic being found from the Ordovician to the Permian With Stromatoporoidea and rugose corals the tabulate corals are characteristic of the shallow waters of the Silurian and Devonian Sea levels rose in the Devonian and tabulate corals became much less common They finally became extinct in the Permian Triassic extinction event Gallery Edit Halysites sp from the Silurian of Ohio View of colony surface Etched section of an Ordovician tabulate coral Aulopora from the Silica Shale Middle Devonian of northwestern Ohio Image shows colony origin encrusting a brachiopod The coral Protaraea richmondensis on the brachiopod Rafinesquina ponderosa Whitewater Formation Indiana Upper Ordovician Tabulate coral Calapoecia huronensis Billings 1865 Waynesville Formation Upper Ordovician Caesar Creek Ohio References Edit Vinn O Motus M A 2012 Diverse early endobiotic coral symbiont assemblage from the Katian Late Ordovician of Baltica Palaeogeography Palaeoclimatology Palaeoecology 321 322 137 141 Bibcode 2012PPP 321 137V doi 10 1016 j palaeo 2012 01 028 Retrieved 2014 06 11 Vinn O Motus M A 2008 The earliest endosymbiotic mineralized tubeworms from the Silurian of Podolia Ukraine Journal of Paleontology 82 2 409 414 doi 10 1666 07 056 1 S2CID 131651974 Retrieved 2014 06 11 Invertebrate Fossils Moore Lalicker amp Fischer McGraw Hill 1952 Treatise on Invertebrate Paleontology Part F Coelenterata Geological Society of America and Univ Kansas Press R C Moore ed This prehistoric Hexacorallia article is a stub You can help Wikipedia by expanding it vte This article related to an Ordovician animal is a stub You can help Wikipedia by expanding it vte This article related to a Silurian animal is a stub You can help Wikipedia by expanding it vte This article related to a Devonian animal is a stub You can help Wikipedia by expanding it vte This article related to a Carboniferous animal is a stub You can help Wikipedia by expanding it vte This article related to a Permian animal is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Tabulata amp oldid 1122191720, wikipedia, wiki, book, books, library,
