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Asterostomatidae
''Asterostomatidae'' is an extinct family of sea urchins belonging to the order Spatangoida. They are slow-moving, shallow infaunal, or sediment-dwelling organisms, and are deposit feeders or detritivores. They lived during the Eocene and Miocene in what is now of Cuba, Cyprus and United States, from 55.8 to 5.332 Ma Genera * '' Antillaster'' * '' Asterostoma'' * '' Brissolampas'' * '' Brissomorpha'' * '' Cleistechinus'' * ''Heterobrissus'' * '' Megapetalus'' * '' Moronaster'' * ''Platybrissus'' * ''Prosostoma ''Prosostoma'' is an extinct genus of sea urchins belonging to the family Asterostomatidae ''Asterostomatidae'' is an extinct family of sea urchins belonging to the order Spatangoida. They are slow-moving, shallow infaunal, or sediment-dwell ...'' * '' Pygospatangus'' References Spatangoida Eocene first appearances Messinian extinctions {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prosostoma
''Prosostoma'' is an extinct genus of sea urchins belonging to the family Asterostomatidae ''Asterostomatidae'' is an extinct family of sea urchins belonging to the order Spatangoida. They are slow-moving, shallow infaunal, or sediment-dwelling organisms, and are deposit feeders or detritivores. They lived during the Eocene and Miocen .... These slow-moving shallow infaunal deposit feeder-detritivores lived during the Eocene of Cuba, from 55.8 to 33.9 Ma.Sepkoski, Jac Sepkoski's Online Genus Database - Echinodermata/ref> Species * ''Prosostoma jimenoi'' Cotteau 1870 References External links Natural History Museum Spatangoida Eocene animals of North America Fossils of Cuba Fossil taxa described in 1883 {{paleo-echinoidea-stub ... [...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 Eur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " dawn") and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the ''Grande Coupure'' (the "Great Break" in continuity) or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platybrissus
''Platybrissus'' is a genus of echinoderms belonging to the family Eurypatagidae Eurypatagidae is a family of echinoderms belonging to the order 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 .... The species of this genus are found in Malesia. Species: *'' Platybrissus ellipticus'' *'' Platybrissus parvus'' *'' Platybrissus roemeri'' References Spatangoida Echinoidea genera {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterobrissus
''Heterobrissus'' is a genus of echinoderms belonging to the order 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 urc ..., family unknown. Species: *'' Heterobrissus erinaceus'' *'' Heterobrissus gigas'' *'' Heterobrissus hemingi'' *'' Heterobrissus hystrix'' *'' Heterobrissus niasicus'' References Spatangoida Echinoidea genera {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
