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Dzhulfitidae
Dzhulfitidae is a small extinct family of Upper Permian and Lower Triassic ammonoids from Asia, included in the ceratitid Xenodiscoidea and containing only three genera: ''Abachites'', ''Dzhulfites'', and ''Paratirolites''. Dzhulfitidae was named by Shevyrev in 1965 to contain ''Dzhulfites'' and ''Abachites'' also named by him at that time. ''Paratirolites'' was removed from its previous position in the Ceratitaceae Ceratitoidea, formerly Ceratitaceae, is an ammonite superfamily in order Ceratitida characterized in general by highly ornamented or tuberculate shells with ceratitic sutures that may become goniatitic or ammonitic in some offshoots. (Arkell .... Species of dzhulfitid genera have been found in Upper Permian and/or Lower Triassic sediments in Armenia, Azerbaijan, Iran, Afghanistan, Thailand, and Japan. References Dzhulfitidae-Paleodb10/26/10 Ceratitida families Xenodiscoidea Lopingian first appearances Early Triassic extinctions {{Ceratitida-stu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abichites
''Abichites'' is ceratitid genus, assigned to the family Dzhulfitidae, from the Upper Permian of Armenia, Azerbaijan, and Iran, with three species recognized: ''A. abichi'', ''A. mojsisovicsi'', and ''A. stoyanowi'' (the type). ''Abichites'' is based on '' Kashmirites'', a genus of the Lower Triassic with a strongly ribbed, commonly tuberculate, evolute shell. included in the Xenoceltitidae (Tozer, 1994). Both genera are included in the superfamily Xenodiscaceae Xenodiscoidea, formerly Xenodiscaceae, is a superfamily within the ammonoid order Ceratitida. The superfamily was named by Frech in 1902, presently contains ten families, only one of which was included in the original Otocerataceae of Hyatt, 1900 .... References * Arkel et al. 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology Part L, Geological Society of America and University of Kansas Press. Ceratitida genera Permian animals of Asia Xenodiscoidea Permian cephalopods {{Ceratitida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dzhulfites
''Dzhulfites'' is a genus of xenodiscoidean ceratitid ammonoids named by Shevyrev, 1965, for species found in the Upper Permian Julfa Formation of Azerbaijan and type genus for the Dzhulfitidae Dzhulfitidae is a small extinct family of Upper Permian and Lower Triassic ammonoids from Asia, included in the ceratitid Xenodiscoidea and containing only three genera: ''Abachites'', ''Dzhulfites'', and ''Paratirolites''. Dzhulfitidae was name .... The type species, ''Dzhulfites spinosus'' Shevyrev 1965 is based on '' Paratirolites spinosus''. ''Dzhulfites'' is known from the Permian of Azerbaijan, Iran, and Thailand. ''Abachites'' the now considered close relative is based on '' Kashmirites stoyanowi'' from the Upper Permian Bashi Formation also of Azerbaijan. References ''Dzhulfites-Paleodb'' Ceratitida genera Permian cephalopods Permian animals of Asia Xenodiscoidea {{Ammonite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paratirolites
''Paratirolites'' is a genus of Early Triassic ceratites from Armenia and Iran with distinct ribs, prominent ventro-lateral tubercles, and a broadly arched venter. The suture is ceratitic with a large ventral saddle.Arkell, et al, 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Soc. of America and Univ. Kansas press Ceratites are ammonoid cephalopods that lived during the Late Permian and Triassic. ''Paratirolites'' is included in the Xenodiscoidean family Dzhulfitidae along with ''Abichites'' and ''Dzhulfites''. Previously it was included in the Stephanitidae, a family belonging to the Ceratitoidea Ceratitoidea, formerly Ceratitaceae, is an ammonite superfamily in order Ceratitida characterized in general by highly ornamented or tuberculate shells with ceratitic sutures that may become goniatitic or ammonitic in some offshoots. (Arkell .... Species of ''Tirolites'' have also been found in the Upper Permian of Azerbaijan, Thailand an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenodiscoidea
Xenodiscoidea, formerly Xenodiscaceae, is a superfamily within the ammonoid order Ceratitida. The superfamily was named by Frech in 1902, presently contains ten families, only one of which was included in the original Otocerataceae of Hyatt, 1900, the remaining having been added. The Xenodiscoidea has its origins in the Middle Permian in the prolecanitid Daraelitidae through the ancestral Xenodiscidae. According to Kummel (1952) and Arkell et al. (1957) the Xenodiscidae gave rise to the Otoceratidae and Ophiceratidae The Ophiceratidae is a family in the ammonoid order Ceratitida from the Lower Triassic, previously included in the Otocerataceae but now placed in the Noritiaceae as revised. The Ophiceratidae produced sepenticones with compressed elliptical who .... The Ophiceratidae in turn gave rise to the Dieneroceratidae which is considered the source for all remaining ceratitid stocks. All four families made up the original Otocerataceae The Xenodiscidae is removed from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shevyrev
Shevyryov or Shevyrev are the surname of the following people * Pyotr Yakovlevich Shevyryov (1863–1887), Russian revolutionary * Stepan Shevyryov (1806–1864), Russian historian an poet * Valeri Shevyryov (born in 1974), Russian footballer {{surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids ( reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of archo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonoidea
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 nea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratitaceae
Ceratitoidea, formerly Ceratitaceae, is an ammonite superfamily in order Ceratitida characterized in general by highly ornamented or tuberculate shells with ceratitic sutures that may become goniatitic or ammonitic in some offshoots. (Arkell ''et al.'' 1962) Phylo-taxonomy The Ceratitoidea, according to the ''Treatise on Invertebrate Paleontology'' (fig. 149, L104) can be divided into the Lower Triassic Hellenitidae, Dinaritidae, Tirolitidae, and Stephanitidae; the essentially lower Middle Triassic Acrochordiceratidae, Beyrichitidae, and Proteusitidae; and the lower Middle and post lower Middle Triassic Ceratitidae and its descendant families. Families descendent from the Ceratidae are the Aplococeratidae and possibly or coeval, the Balatonitidae, Danubitidae, and Hungaritidae, and from the Hungaritidae, the Carnitidae. Of these the Balatonitidae and Danubitidae are restricted to the Anisian (lower Middle Triassic); the Ceratitidae and Hungaritidae to the Anisian an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratitida Families
Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammonites. Ceratitids overwhelmingly produced planospirally coiled discoidal shells that may be evolute with inner whorls exposed or involute with only the outer whorl showing. In a few later forms the shell became subglobular, in others, trochoidal or uncoiled. Sutures are typically ceratitic, with smooth saddles and serrate or digitized lobes. In a few the sutures are goniatitic while in others they are ammonitic. Taxonomy * Ceratitida **Ceratitoidea **Choristoceratoidea **Clydonitoidea **Danubitoidea **Dinaritoidea ** Lobitoidea ** Meekoceratoidea ** Megaphyllitoidea ** Nathorstitoidea **Noritoidea **Otoceratoidea **Pinacoceratoidea **Ptychitoidea ** Sageceratoidea **Tropitoidea **Xenodiscoidea Only eight superfamilies are shown i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lopingian First Appearances
The Lopingian is the uppermost series/last epoch of the Permian. It is the last epoch of the Paleozoic. The Lopingian was preceded by the Guadalupian and followed by the Early Triassic. The Lopingian is often synonymous with the informal terms late Permian or upper Permian. The name was introduced by Amadeus William Grabau in 1931 and derives from Leping, Jiangxi in China. It consists of two stages/ ages. The earlier is the Wuchiapingian and the later is the Changhsingian. The International Chronostratigraphic Chart (v2018/07) provides a numerical age of 259.1 ±0.5 Ma. If a Global Boundary Stratotype Section and Point (GSSP) has been approved, the lower boundary of the earliest stage determines numerical age of an epoch. The GSSP for the Wuchiapingian has a numerical age of 259.8 ± 0.4 Ma. Evidence from Milankovitch cycles suggests that the length of an Earth day during this epoch was approximately 22 hours. The Lopingian ended with the Permian–Triassic extinction event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
