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Loveniidae
Loveniidae is a family of heart urchins in the order Spatangoida. Description and characteristics These sea urchins are called "heart urchins" due to their specific shape, looking like a heart when seen from below (more or less depending on the genus). The mouth is located between the two cheeks, and the anus below the tip. Genera According to the World Register of Marine Species: * genus '' Araeolampas'' Serafy, 1974 * genus '' Atelospatangus'' Koch, 1885 † * genus ''Breynia'' Desor, in Agassiz & Desor, 1847 * genus '' Chuniola'' Gagel, 1903 † * sub-family Echinocardiinae Cooke, 1942 ** genus ''Echinocardium'' Gray, 1825 * genus '' Gualtieria'' Desor, in Agassiz & Desor, 1847 † * genus '' Hemipatagus'' Desor, 1858 † * genus '' Laevipatagus'' Noetling, 1885 † * genus '' Lovenia'' Desor, in Agassiz & Desor, 1847 * genus '' Pseudolovenia'' A. Agassiz & H.L. Clark, 1907b * genus '' Semipetalion'' Szörényi, 1963 † * genus '' Spatangomorpha'' Boehm, 1882 † Image: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heart Urchin
The heart urchins or Spatangoida are an order of sea urchins. Their body is a somewhat elongated oval in form, and is distinguished by the mouth being placed towards one end of the animal, and the anus towards the other. As a result, heart urchins, unlike most other sea urchins, are bilaterally symmetrical, and have a distinct anterior surface. The presence and position of the mouth and anus typically give members of this group the distinct "heart" shape from which they get their name. Heart urchins have no feeding lantern, and often have petaloids sunk into grooves. They are a relatively diverse order, with a number of varying species. Taxonomy According to World Register of Marine Species : * suborder Brissidina Stockley, Smith, Littlewood, Lessios & MacKenzie-Dodds, 2005 ** family Asterostomatidae Pictet, 1857 ** family Brissidae Gray, 1855 ** family Palaeotropidae Lambert, 1896 ** super-family Spatangidea Fischer, 1966 *** family Eupatagidae Lambert, 1905 *** family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spatangoida
The heart urchins or Spatangoida are an order of sea urchins. Their body is a somewhat elongated oval in form, and is distinguished by the mouth being placed towards one end of the animal, and the anus towards the other. As a result, heart urchins, unlike most other sea urchins, are bilaterally symmetrical, and have a distinct anterior surface. The presence and position of the mouth and anus typically give members of this group the distinct "heart" shape from which they get their name. Heart urchins have no feeding lantern, and often have petaloids sunk into grooves. They are a relatively diverse order, with a number of varying species. Taxonomy According to World Register of Marine Species : * suborder Brissidina Stockley, Smith, Littlewood, Lessios & MacKenzie-Dodds, 2005 ** family Asterostomatidae Pictet, 1857 ** family Brissidae Gray, 1855 ** family Palaeotropidae Lambert, 1896 ** super-family Spatangidea Fischer, 1966 *** family Eupatagidae Lambert, 1905 *** family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinocardium Cordatum
''Echinocardium cordatum'', also known as the common heart urchin or the sea potato, is a sea urchin in the family (biology), family Loveniidae. It is found in sub-tidal regions in the NE Atlantic. Other un-named species have been identified as this species from temperate seas around the world. It lives buried in the sandy sea floor. Description The sea potato is a heart-shaped urchin clothed in a dense mat of furrowed yellowish spines which grow from tubercles and mostly point backwards. The upper surface is flattened and there is an indentation near the front. This urchin is a fawn colour but the Test (biology), tests that are found on the strandline have often lost their spines and are white. During life, the spines trap air which helps prevent asphyxiation for the buried urchin. The Ambulacrum (anatomy), ambulacra form a broad furrow in a star shape extending down the sides of the test. There are two series each of two rows of tube feet. The test reaches from six to nine cent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lovenia
''Lovenia'' is a genus of sea urchin that is the sister taxon to '' Berynia'' and ''Echinocardium''. Lovenia kerneri was described in 2020 from the Pliocene Tamiami Formation in Florida. It is the first documented Lovenia from the Eastern United States and the largest as well as the latest member of this genus known from the Eastern America/Caribbean region. Species *†'' L. aegyptiaca'' (Fourtau, 1920); Upper Miocene, Egypt. *†'' L. bagheerae'' Irwin & Archbold, 1994; Miocene (Tortonian), southern Australia. *'' L. camarota'' Clark, 1917; Recent, North Australia. *'' L. cordiformis'' Agassiz, 1872; Recent, West coast of America. *'' L. doederleini'' Mortensen, 1950; Recent, Malay region. *†'' L. elongata'' (Gray, 1845); Miocene to Recent, Indo-West Pacific. *†'' L. forbesii'' (Tenison Woods, 1862); Lower to Middle Miocene, Australia. *'' L. gregalis'' Alcock, 1893; Recent, Indo-West Pacific. *'' L. grisea'' Agassiz & Clark, 1907; Recent, Hawaii. *'' L. hawaiiensis'' Mort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinocardium
''Echinocardium'' is a genus of sea urchins of the family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ... Loveniidae, known as heart urchins. Species * '' Echinocardium australe'' Gray, 1855 * '' Echinocardium cordatum'' ( Pennant, 1777) * '' Echinocardium fenauxi'' Péquignat, 1963 * '' Echinocardium flavescens'' ( Müller, 1776) * '' Echinocardium gibbosus'' Agassiz & Desor, 1847 * '' Echinocardium intermedium'' Mortensen, 1907 * '' Echinocardium laevigaster'' Agassiz * '' Echinocardium mediterraneum'' (Forbes, 1844) * '' Echinocardium mortenseni'' Thiéry, 1909 * '' Echinocardium pennatifidum'' Norman, 1868 * '' Echinocardium sebae'' Gray References * Spatangoida Taxa named by John Edward Gray {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lovenia Elongata
''Lovenia'' is a genus of sea urchin that is the sister taxon to '' Berynia'' and ''Echinocardium''. Lovenia kerneri was described in 2020 from the Pliocene Tamiami Formation in Florida. It is the first documented Lovenia from the Eastern United States and the largest as well as the latest member of this genus known from the Eastern America/Caribbean region. Species *†'' L. aegyptiaca'' (Fourtau, 1920); Upper Miocene, Egypt. *†'' L. bagheerae'' Irwin & Archbold, 1994; Miocene (Tortonian), southern Australia. *'' L. camarota'' Clark, 1917; Recent, North Australia. *'' L. cordiformis'' Agassiz, 1872; Recent, West coast of America. *'' L. doederleini'' Mortensen, 1950; Recent, Malay region. *†'' L. elongata'' (Gray, 1845); Miocene to Recent, Indo-West Pacific. *†'' L. forbesii'' (Tenison Woods, 1862); Lower to Middle Miocene, Australia. *'' L. gregalis'' Alcock, 1893; Recent, Indo-West Pacific. *'' L. grisea'' Agassiz & Clark, 1907; Recent, Hawaii. *'' L. hawaiiensis'' Mort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
