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Aglaocrinus Rectilatus
''Aglaocrinus'' is an extinct species of crinoids in the ''Cladia'' order. It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts of which were composed of magnesium calcite. It has been discovered in 3 locations in North America. Species There are currently 12 species in this genus, consisting of: *''Aglaocrinus cranei'' (Strimple, 1971); also known as ''Aaglaocrinus cranei'' *''Aglaocrinus expansus'' *''Aglaocrinus keytei'' (Strimple & Moore 1973); also known as ''Aaglaocrinus keytai'' *''Aglaocrinus konecnyorum'' (Webster 1981) *''Aglaocrinus magnus'' (Strimple 1949) *''Aglaocrinus nacoensis'' (Webster 1981) *''Aglaocrinus oklahomensis'' (Moore & Plummer 1938); also known as ''Ethelocrinus oklahomensis'' (Moore & Plummer, 1938) *''Aglaocrinus rectilatus'' (Lane & Webster, 1966) *''Aglaocrinus supplantus'' (Pabian & Strimple 1974); also known as ''Aaglaocrinus supplantus'' *''Aglaocrinus sutherlandi'' (Strimple 1980) *''Aglaocrinus tu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aaglacrinus
''Aaglacrinus'' is an extinct genus of crinoidea in the ''Cladia'' order. It has been proposed that it was a stationary (attached) suspension feeder Filter feeders are aquatic animals that acquire nutrients by feeding on organic matters, food particles or smaller organisms (bacteria, microalgae and zooplanktons) suspended in water, typically by having the water pass over or through a spec ... the hard parts of which were composed of magnesium calcite. Species There are currently two species in this genus, both of which are under the name ''Aaglaocrinus'': * '' Aaglaocrinus bowsheri'' (Webster & Kues, 2006) * '' Aaglaocrinus sphaeri'' (Strimple 1949) References External linksFind articles [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aglaocrinus Magnus
''Aglaocrinus'' is an extinct species of crinoids in the ''Cladia'' order. It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts of which were composed of magnesium calcite. It has been discovered in 3 locations in North America. Species There are currently 12 species in this genus, consisting of: *'' Aglaocrinus cranei'' (Strimple, 1971); also known as ''Aaglaocrinus cranei'' *'' Aglaocrinus expansus'' *'' Aglaocrinus keytei'' (Strimple & Moore 1973); also known as ''Aaglaocrinus keytai'' *'' Aglaocrinus konecnyorum'' (Webster 1981) *'' Aglaocrinus magnus'' (Strimple 1949) *'' Aglaocrinus nacoensis'' (Webster 1981) *'' Aglaocrinus oklahomensis'' (Moore & Plummer 1938); also known as ''Ethelocrinus oklahomensis'' (Moore & Plummer, 1938) *''Aglaocrinus rectilatus ''Aglaocrinus'' is an extinct species of crinoids in the ''Cladia'' order. It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Crinoid Genera
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared years ago. It took thousands of years for writing systems to be widely adopted, with writing having spread to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. It is based on an old conception of history that without written records there could be no history. The most common conception today is that history is based on evidence, however the concept of prehistory hasn't been completely discarded. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleozoic Echinoderms Of North America
The Paleozoic ( , , ; or Palaeozoic) Era is the first of three geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma at the start of the Mesozoic Era. The Paleozoic is subdivided into six geologic periods (from oldest to youngest), Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. Some geological timescales divide the Paleozoic informally into early and late sub-eras: the Early Paleozoic consisting of the Cambrian, Ordovician and Silurian; the Late Paleozoic consisting of the Devonian, Carboniferous and Permian. The name ''Paleozoic'' was first used by Adam Sedgwick (1785–1873) in 1838 to describe the Cambrian and Ordovician periods. It was redefined by John Phillips (1800–1874) in 1840 to cover the Cambrian to Permian periods. It is derived from the Greek ''palaiós'' (παλαιός, "old") and ''zōḗ'' (ζωή, "life") meaning "ancient lif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aglaocrinus Verrucosus
''Aglaocrinus'' is an extinct species of crinoids in the ''Cladia'' order. It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts of which were composed of magnesium calcite. It has been discovered in 3 locations in North America. Species There are currently 12 species in this genus, consisting of: *'' Aglaocrinus cranei'' (Strimple, 1971); also known as ''Aaglaocrinus cranei'' *'' Aglaocrinus expansus'' *'' Aglaocrinus keytei'' (Strimple & Moore 1973); also known as ''Aaglaocrinus keytai'' *'' Aglaocrinus konecnyorum'' (Webster 1981) *'' Aglaocrinus magnus'' (Strimple 1949) *'' Aglaocrinus nacoensis'' (Webster 1981) *'' Aglaocrinus oklahomensis'' (Moore & Plummer 1938); also known as ''Ethelocrinus oklahomensis'' (Moore & Plummer, 1938) *''Aglaocrinus rectilatus ''Aglaocrinus'' is an extinct species of crinoids in the ''Cladia'' order. It has been proposed that it was a blind, stationary (attached) suspension feeder the hard parts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
