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Blanfordiceras
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Acuticosta
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Rotundidoma
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Applanatum
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Tenuicostatum
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Subquadratum
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Wallichi
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Muktinathense
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Latidomus
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Cricki
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanfordiceras Boehmi
''Blanfordiceras'' is a strongly ribbed, evolute ammonite included in the perisphinctacean family, Neocomitidae Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells. In the 1957 description of the family Neocomitidae was r ... that lived during the latest Jurassic. The shell of ''Blanfordiceras'' is discoidal, with evolute coiling and all whorls visible so as to have a broad umbilicus. Exposed whorls are ornamented with strong ribbing that arises from the umbilicus, bifurcating on the outer flanks and extending onto the venter. In general form ''Blanfordiceras'' is similar to '' Berriasella'', although with a more rounded whorl section. References ;Notes ;Bibliography * {{Taxonbar, from=Q4925089 Cretaceous ammonites Ammonitida Fossils of Antarctica Tithonian life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Edward Gray
John Edward Gray, FRS (12 February 1800 – 7 March 1875) was a British zoologist. He was the elder brother of zoologist George Robert Gray and son of the pharmacologist and botanist Samuel Frederick Gray (1766–1828). The same is used for a zoological name. Gray was keeper of zoology at the British Museum in London from 1840 until Christmas 1874, before the natural history holdings were split off to the Natural History Museum. He published several catalogues of the museum collections that included comprehensive discussions of animal groups and descriptions of new species. He improved the zoological collections to make them amongst the best in the world. Biography Gray was born in Walsall, but his family soon moved to London, where Gray studied medicine. He assisted his father in writing ''The Natural Arrangement of British Plants'' (1821). After being blackballed by the Linnean Society of London, Gray shifted his interest from botany to zoology. He began his zoologica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonite
Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) than they are to shelled nautiloids such as the living ''Nautilus'' species. The earliest ammonites appeared during the Devonian, with the last species vanishing during the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and linking the rock layer in which a particular species or genus is found to specific geologic time periods is often possible. Their fossil shells usually take the form of planispirals, although some helically spiraled and nonspiraled forms (known as heteromorphs) have been found. The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns. Pliny the Elder ( 79 AD near Pomp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
