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Iocrinus
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * ''Iocrinus crassus'' * ''Iocrinus pauli'' * ''Iocrinus shelvensis'' * ''Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales * Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician echinoderms of North America Paleozoic life of Ontario Verulam Formation {{Paleo-crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Whitteryi
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * ''Iocrinus crassus'' * ''Iocrinus pauli'' * ''Iocrinus shelvensis'' * ''Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales * Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician echinoderms of North America Paleozoic life of Ontario Verulam Formation {{Paleo-crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Brithdirensis
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * '' Iocrinus brithdirensis'' * '' Iocrinus crassus'' * '' Iocrinus pauli'' * '' Iocrinus shelvensis'' * '' Iocrinus similis'' * '' Iocrinus subcrassus'' * '' Iocrinus trentonensis'' * ''Iocrinus whitteryi ''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species ...'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales* Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Trentonensis
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * '' Iocrinus crassus'' * '' Iocrinus pauli'' * '' Iocrinus shelvensis'' * '' Iocrinus similis'' * '' Iocrinus subcrassus'' * '' Iocrinus trentonensis'' * ''Iocrinus whitteryi ''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species ...'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales* Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Subcrassus
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * '' Iocrinus crassus'' * '' Iocrinus pauli'' * '' Iocrinus shelvensis'' * '' Iocrinus similis'' * '' Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi ''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species ...'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales* Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Similis
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * '' Iocrinus crassus'' * '' Iocrinus pauli'' * '' Iocrinus shelvensis'' * '' Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi ''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species ...'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales* Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician ec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Shelvensis
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * '' Iocrinus crassus'' * '' Iocrinus pauli'' * '' Iocrinus shelvensis'' * ''Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi ''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species ...'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales* Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician ech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Pauli
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * '' Iocrinus crassus'' * '' Iocrinus pauli'' * ''Iocrinus shelvensis'' * ''Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi ''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species ...'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales* Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician echi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iocrinus Crassus
''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early form of crinoid, from the Ordovician rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species * ''Iocrinus brithdirensis'' * '' Iocrinus crassus'' * ''Iocrinus pauli'' * ''Iocrinus shelvensis'' * ''Iocrinus similis'' * ''Iocrinus subcrassus'' * ''Iocrinus trentonensis'' * ''Iocrinus whitteryi ''Iocrinus'' is an extinct genus of crinoid (sea lilies and feather stars). It is an early Form (zoology), form of crinoid, from the Ordovician Rock (geology), rock of North America, England, and Gilwern Hill, Powys in Wales. Selected species ...'' References Paleobiology Database entry''Iocrinus'' in the Ordovician of England and Wales* Stuart M. Kelly, ''Functional Morphology and Evolution of Iocrinus: An Ordovician Disparid Inadunate Crinoid'', Indiana University, 1978. Iocrinidae Ordovician crinoids Ordovician echinoderms of Europe Ordovician echin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disparida
Disparida is an parvclass of extinct marine animals in the class Crinoidea. Disparids are a speciose and morphologically diverse group of crinoids distinguished by their monocyclic calyx and slender arms without pinnules. They range from the Early Ordovician ( Tremadocian) to Middle Permian, reaching their highest diversity during the Late Ordovician. While many disparids had a generalized shape typical of other stalked crinoids, some subgroups achieved strange forms. The long-lasting Calceocrinidae were recumbent forms, with a flattened crown bent back onto a stalk which rested on the seafloor. Other unusual disparid families include the armless Zophocrinidae, the spiral-armed Myelodactylidae, and the diminutive, simplified Pisocrinidae. Disparids have long been classified by the structure of their radial plates and different planes of symmetry, but a cumulative phylogenetic approach has failed to confirm the validity of many proposed subgroups. Nevertheless, Disparida itsel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilwern Hill, Powys
Gilwern Hill is a hill about 3 mi / 5 km southeast of Llandrindod Wells in the county of Powys, Wales. Geology The hill is composed from a range of lower and middle Ordovician volcaniclastic rocks which form a part of the Builth Inlier. Palaeontologists Pete Lawrance and Brian Beveridge have spent 30 years examining fossils from a privately owned limestone quarry on the hill. Amongst fossils so far identified at this location are the trilobites Meadowtownella, Bettonolithus, Protolloydolithus and Anebolithus together with Conulariida, Iocrinus, Clonograptus and starfish Stone rows There are two prehistoric stone row A stone row or stone alignment is a linear arrangement of upright, parallel megalithic standing stones set at intervals along a common axis or series of axes, usually dating from the later Neolithic or Bronze Age.Power (1997), p.23 Rows may be in ...s at the southern end of the hill, each with a large stone, more than 2m high, at one end. Referenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have 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 bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordovician Echinoderms Of North America
The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. The Ordovician, named after the Welsh tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed strata were different from those of either the Cambrian or the Silurian systems, and placed them in a system of their own. The Ordovician received international approval in 1960 (forty years after Lapworth's death), when it was adopted as an official period of the Paleozoic Era by the International Geological Congress. Life continued to flourish during the Ordovician as it did in the earlier Cambr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
