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Perisphinctaceae
Perisphinctoidea, formerly Perisphinctaceae, is a superfamily of Middle Jurassic (Bajocian) to Lower Cretaceous (Barremian) ammonites, commonly with evolute shells with strong ribbing that typically divides about mid flank before crossing the venter. Classification Some 16 families have been recognized in the Perisphinctoidea. The following is based on Donovan ''et al.'' 1981Donovan, Callomon and Howarth 1981 Classification of the Jurassic Ammonitina; Systematics Association. with modification from the Treatise on Invertebrate Paleontology, Part L (1957) *Perisphinctidae: Middle and Upper Jurassic root stock, derived from the Stephanoceratidae (Middle Jurassic direct derivatives of the Perisphinctidae) * Morphiceratidae * Tulitidae *Reineckeiidae *Pachyceratidae *Aspidoceratidae (early Upper Jurassic (Oxfordian) derivatives of Perisphinctidae) *Aulacostephanidae *Ataxioceratidae (mid Upper Jurassic (Kimmeridgian) derivatives of the Ataxioceratidae) * Dorsoplanitidae * V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perisphinctoidea
Perisphinctoidea, formerly Perisphinctaceae, is a superfamily of Middle Jurassic (Bajocian) to Lower Cretaceous (Barremian) ammonites, commonly with evolute shells with strong ribbing that typically divides about mid flank before crossing the venter. Classification Some 16 families have been recognized in the Perisphinctoidea. The following is based on Donovan ''et al.'' 1981Donovan, Callomon and Howarth 1981 Classification of the Jurassic Ammonitina; Systematics Association. with modification from the Treatise on Invertebrate Paleontology, Part L (1957) * Perisphinctidae: Middle and Upper Jurassic root stock, derived from the Stephanoceratidae (Middle Jurassic direct derivatives of the Perisphinctidae) * Morphiceratidae * Tulitidae * Reineckeiidae *Pachyceratidae * Aspidoceratidae (early Upper Jurassic (Oxfordian) derivatives of Perisphinctidae) *Aulacostephanidae *Ataxioceratidae (mid Upper Jurassic (Kimmeridgian) derivatives of the Ataxioceratidae) * Dorsoplanitidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berriasellidae
Berriasellinae is a subfamily of very late Jurassic and very early Cretaceous perisphinctoid ammonites in the family Neocomitidae. Berriasellinae comprises generally compressed, evolute genera, typically with furcated ribbing, and in some a smooth ventral band or groove. Berriasellinae are derived from the Ataxioceratidae and gave rise to the other Neocomitidae. The short lived Himalayitidae from the uppermost Jurassic have a similar appearance but differ in being generally broader and having sharper ribbing. In current classifications (e.g. Donovan ''et al.'' 1981) berriasellid perisphinctaceans are included in the Neocomitidae as a subfamily, the Berriasellinae. In older classification such as the Treatise on Invertebrate Paleontology, part L (1957), neocomitid genera are included in the Berriasellidae, '' sensu lato'', as the Neocomitinae. Berriasellinae includes the genera ''Andiceras'', ''Berriasella'', ''Blanfordiceras'', ''Delphinella'', '' Elenaella'', '' Jabronel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Steinmann
Johann Heinrich Conrad Gottfried Gustav Steinmann (9 April 1856 – 7 October 1929) was a German geologist and paleontologist. He performed various studies in the Ural Mountains, North America, South America, the Caucasus and the Alps. Steinmann had a large number of scientific publications. He made contributions to the Theory of Evolution and to the study of the structural geology and orogeny of the Andes. In the Alps and Apennines Steinmann defined what later became known as "Steinmann's Trinity," the occurrence of serpentine, pillow lava, and chert. The recognition of Steinmann's Trinity served years later to build up the theory around seafloor spreading and plate tectonics. Steinmann himself interpreted ophiolites (the Trinity) using the geosyncline concept. His studies of ophiolites in the Apennines paved the way for the discovery of allochthonous nappes in the Alps and Apennines. South America Steinmann redefined the Navidad Formation in 1895, then called Pis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Animal Superfamilies
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 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 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oosterellidae
Oosterellidae is an extinct ammonoid cephalopod family belonging to the superfamily Perisphinctoidea. These fast-moving nektonic carnivores lived during the Cretaceous. Genera *'' Oosterella'' *'' Pseudoosterella'' Distribution Fossils of species within this genus have been found in the Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ... sediments of Argentina, Austria, Colombia, Czech Republic, France, Hungary, Italy, Mexico, Morocco, Romania and Slovakia. References Ammonitida families Perisphinctoidea Cretaceous ammonites Ammonites of Europe Early Cretaceous first appearances Early Cretaceous extinctions {{ammonitina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 regarded as the subfamily Neocomitinae within the Berriasellidae, a family within the Perisphinctoidea that ranged from the Late Jurassic into the Early Cretaceous. In a more recent treatment berriaselids are regarded as a subfamily within the Neocomitidae. Current opinion differers from the 1967 placement of Neocomitidae in the Perisphinctoidea but rather includes it in the superfamily Endemoceratoidea. Genera *''Acanthodiscus'' Uhlig, 1905 *''Argentiniceras'' Spath, 1924 *'' Berriasella'' Uhlig, 1905 *'' Decliveites'' Aguirre-Urreta and Rawson, 2010 *'' Delphinella'' Le Hegarat, 1973 *'' Delphinites'' Sayn, 1901 *'' Distoloceras'' Hyatt, 1900 *'' Elenaella'' Nikolov, 1966 *'' Eleniceras'' Breskovski, 1967 *'' Ellenaela'' Nikolov, 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Craspeditidae
''Craspeditidae'' is an ammonoid cephalopod family included in the Perisphinctoidea superfamily. Some classifiers consider the Craspeditidae a subfamily in the Polyptychitidae. These ammonites lived during the Late Jurassic and Early Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th .... Genera *'' Craspedites'' † *'' Platylenticeras'' † *'' Tolypeceras'' † References Cretaceous ammonites Jurassic ammonites Perisphinctoidea Ammonitida families {{ammonitina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holcodiscidae
Holcodiscidae is an ammonite family placed in the superfamily Desmoceratoidea. Wright, C. W. with J.H. Callomon and M.K. Howarth (1996), ''Mollusca 4 Revised, Cretaceous Ammonoidea'', vol. 4 in '''', Part L (Roger L. Kaesler et el. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, p.48. Description Moderately involute with rounded, rectangular, or depressed whorl section; straight or sinuous, fine ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olcostephanidae
Olcostephanidae is an extinct ammonoid cephalopod family belonging to the superfamily Perisphinctoidea. These fast-moving nektonic carnivores lived from the Jurassic to the Cretaceous period. Genera *'' Bihenduloceras'' *'' Olcostephanus'' Neumayr, 1875 *'' Saynoceras'' *'' Subastieria'' Spath, 1923 *'' Taraisites'' Canta-Chapa, 1966 *'' Valanginites'' Sayn, 1910 Distribution Fossils of species within this genus have been found in the Cretaceous sediments of Antarctica, Argentina, Austria, Chile, Colombia, Czech Republic, Czechoslovakia, France, Hungary, Italy, Mexico, Morocco, Peru, Poland, Portugal, Romania, Slovakia, South Africa, Spain, Russia, United States, as well as in the Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ... of Argentina and Mexico. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himalayitidae
Himalayitidae is an extinct family of ammonites in the superfamily Perisphinctoidea. The family existed from the Tithonian of the Jurassic to the Berriasian of the Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th .... The family is thought to derive from Perisphinctidae. References External links * * Ammonitida families Perisphinctoidea Jurassic ammonites Tithonian first appearances Early Cretaceous extinctions {{ammonitina-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
