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Trachyteuthis
''Trachyteuthis'' is a genus of fossil cephalopod, comprising five species: ''T. hastiformis'', ''T. latipinnis'', ''T. nusplingensis'', ''T. teudopsiformis'', ''T. covacevichi'' and ''T. chilensis''. Taxonomy The taxonomic placement of ''Trachyteuthis'' is uncertain. Though often assigned to the order Vampyromorphida, the discovery of fossilised ''Trachyteuthis'' beaks in the Upper Jurassic limestone of Germany suggests a close phylogenetic relation to the Octopoda. It is clear that it does at least belong in the Coleoidea. It is thought to be very closely related to ''Teudopsis''. Distribution Fossils are scarce but have been reported from the Kimmeridge clay of the UK; the Solnhofen limestone of Germany, Jurassic deposits in Antarctica, and Oxfordian deposits in Chile. History First described in 1773 as the remnants of a fish, ''Trachyteuthis'' was considered comparable to a ''Sepia Sepia may refer to: Biology * ''Sepia'' (genus), a genus of cuttlefish Color * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachyteuthis Hastiformis Fossil
''Trachyteuthis'' is a genus of fossil cephalopod, comprising five species: ''T. hastiformis'', ''T. latipinnis'', ''T. nusplingensis'', ''T. teudopsiformis'', ''T. covacevichi'' and ''T. chilensis''. Taxonomy The Taxonomy (biology), taxonomic placement of ''Trachyteuthis'' is uncertain. Though often assigned to the order (biology), order Vampyromorphida, the discovery of fossilised ''Trachyteuthis'' beaks in the Upper Jurassic limestone of Germany suggests a close phylogenetics, phylogenetic relation to the Octopoda. It is clear that it does at least belong in the Coleoidea. It is thought to be very closely related to ''Teudopsis''. Distribution Fossils are scarce but have been reported from the Kimmeridge clay of the UK; the Solnhofen limestone of Germany, Jurassic deposits in Antarctica, and Oxfordian deposits in Chile. History First described in 1773 as the remnants of a fish, ''Trachyteuthis'' was considered comparable to a ''Sepia (genus), Sepia'' cuttlebone by Rü ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teudopsis
''Teudopsis'' is a genus of the coleoid cephalopod family Teudopsidae, known only from Lower Jurassic gladii. It has been reported from Alberta, Canada and Europe. The life appearance of Teudopsis is probably best inferred by its close relative Trachyteuthis ''Trachyteuthis'' is a genus of fossil cephalopod, comprising five species: ''T. hastiformis'', ''T. latipinnis'', ''T. nusplingensis'', ''T. teudopsiformis'', ''T. covacevichi'' and ''T. chilensis''. Taxonomy The taxonomic placement of ''Tr .... A fossil with soft tissue preservation shows that this animal may have had two mantle fins, which may also be the case for Teudopsis. PART M, CHAPTER 13:FOSSILIZED SOFT TISSUES IN COLEOIDEA DESMONDT. DONOVAN1 & DIRK FUCHS References Coleoidea Cephalopod genera Fossil taxa described in 1835 {{cephalopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jura Museum
The Jura Museum located in Willibaldsburg castle in the town of Eichstätt, Germany, is a natural history museum that has an extensive exhibit of Jurassic fossils from the quarries of Solnhofen and surroundings, including marine reptiles, pterosaurs, and one specimen of the early bird '' Archaeopteryx''. The latest acquisition of the museum is the well preserved skeleton of the coelurosaur ''Juravenator''. The museum also has an aquarium, with several large tanks showing tropical fish and corals, as well as ''Nautilus The nautilus (, ) is a pelagic marine mollusc of the cephalopod family Nautilidae. The nautilus is the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina. It comprises six living species in ...''. External links Museum description Natural history museums in Germany Museums in Bavaria {{Bavaria-struct-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic Cephalopods
The Jurassic ( ) is a geologic period and 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 Jurassic constitutes the middle period of the Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and is the only boundary between geological periods to remain formally undefined. By the beginning of the Jurassic, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Cephalopod Genera
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. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sepia (genus)
''Sepia'' is a genus of cuttlefish in the family (biology), family Sepiidae encompassing some of the best known and most common species. The cuttlebone is relatively ellipsoid in shape. The name of the genus is the Latinized form of the Ancient Greek , ''sēpía'', cuttlefish. Classification *Genus ''Sepia'' **Subgenus undetermined ***? ''Sepia bartletti'' ***? ''Sepia baxteri'' * ***? ''Sepia dannevigi'' * ***? ''Sepia elliptica'', ovalbone cuttlefish ***''Sepia filibrachia'' ***''Sepia mira'' ***''Sepia plana'' ***''Sepia senta'' ***''Sepia subplana'' ***? ''Sepia whitleyana'', Whitley's cuttlefish **Subgenus ''Acanthosepion'' ***''Sepia aculeata'', needle cuttlefish ***''Sepia brevimana'', shortclub cutttlefish ***''Sepia esculenta'', golden cuttlefish ***''Sepia lycidas'', kisslip cuttlefish ***''Sepia prashadi'', hooded cuttlefish ***''Sepia orbignyana'', pink cuttlefish ***''Sepia recurvirostra'', curvespine cuttlefish ***''Sepia savignyi'', broadback cuttlefish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeontology (journal)
''Palaeontology'' is one of the two scientific journals of the Palaeontological Association (the other being '' Papers in Palaeontology''). It was established in 1957 and is published on behalf of the Association by Wiley-Blackwell. The editor-in-chief is Barry Lomax (University of Nottingham). ''Palaeontology'' publishes articles on a range of palaeontological topics, including taphonomy, functional morphology, systematics, palaeo-environmental reconstruction and biostratigraphy. According to the ''Journal Citation Reports'', the journal has a 2017 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 3.730, ranking it 1st out of 55 journals in the category "Paleontology". References External links * Paleontology journals Publications established in 1957 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solnhofen
Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Middle Franconia in the ' of Bavaria in Germany. It is in the Altmühl valley. The local area is famous in geology and palaeontology for Solnhofen limestone. This is a very fine-grained limestone from the Jurassic period Lagerstätte that preserves detailed fossil specimens. Alois Senefelder used specially prepared blocks of the fine Solnhofen limestone for the process of lithography which he invented in 1798. The quarrying of this lithographic limestone subsequently yielded spectacular finds, including ''Archaeopteryx'', commemorated in the bird's full name ''Archaeopteryx lithographica''. All 13 known specimens have come from the Solnhofen area. Geography Solnhofen is located on the Altmühl in Bavaria. It contains two districts: Hochholz and Eßlingen. It is adjacent to the municipalities Pappenheim, Langenaltheim, and Mörnsheim. History Solnhofen was known as "Husen" in the eighth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kimmeridge Clay
The Kimmeridge Clay is a sedimentary deposit of fossiliferous marine clay which is of Late Jurassic to lowermost Cretaceous age and occurs in southern and eastern England and in the North Sea. This rock formation is the major source rock for North Sea oil. The fossil fauna of the Kimmeridge Clay includes turtles, crocodiles, sauropods, plesiosaurs, pliosaurs and ichthyosaurs, as well as a number of invertebrate species. Description Kimmeridge Clay is named after the village of Kimmeridge on the Dorset coast of England, where it is well exposed and forms part of the Jurassic Coast World Heritage Site. Onshore, it is of Late Jurassic (Kimmeridgian) age and outcrops across England, in a band stretching from Dorset in the south-west, north-east to North Yorkshire. Offshore, it extends into the Lower Cretaceous (Berriasian Stage) and it is found throughout the Southern, Central and Northern North Sea. The foundations of the Humber Bridge on the southern (Barton) side of the bridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annales De Paléontologie
''Annales de Paléontologie'' is a peer-reviewed scientific journal covering paleontology. It is published by Elsevier. According to the ''Journal Citation Reports'', its 2020 impact factor is 0.702. The journal is abstracted and indexed in BIOSIS Previews, PASCAL, FRANCIS, and Scopus. , the editor-in-chief An editor-in-chief (EIC), also known as lead editor or chief editor, is a publication's editorial leader who has final responsibility for its operations and policies. The highest-ranking editor of a publication may also be titled editor, managing ... is Didier Neraudeau. References English-language journals Online-only journals Earth and atmospheric sciences journals {{paleontology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethaia
''Lethaia'' is a quarterly peer-reviewed scientific journal of Earth science, covering research on palaeontology and stratigraphy. Now published by Wiley-Blackwell, it was originally published by the International Commission on Stratigraphy. It is an official publication of the International Palaeontological Association and the International Commission on Stratigraphy. The journal had a 2012 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 2.488, ranking it 7th out of 48 journals in the category "Paleontology", though its IF has since declined. References External links * Paleontology journals Wiley-Blackwell academic journals English-language journals Publications established in 1968 Quarterly journals {{paleontology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
