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Muensterellidae
Muensterellidae is a family of stem-octopod cephalopods from the Late Jurassic to Late Cretaceous. Phylogeny Muensterellidae is one of two families in the superfamily Muensterelloidea along with the Patelloctopodidae. The muensterelloids are characterized by having a roughly spoon-shaped end of the gladius ''Gladius'' () is a Latin word meaning "sword" (of any type), but in its narrow sense it refers to the sword of ancient Roman foot soldiers. Early ancient Roman swords were similar to those of the Greeks, called '' xiphe'' (plural; singular ''xi ... called the patella. This type of gladius is likely ancestral to the gladius remnants of modern octopuses. References {{Taxonbar, from=Q30434538 Octopuses Prehistoric cephalopod families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muensterelloidea
Muensterelloidea is a superfamily (or clade) of stem-octopod cephalopods from the Early Jurassic to Late Cretaceous. Two families are currently identified, Muensterellidae, and Patelloctopodidae. The clade is the ancestral group from which modern octopus arose. Description Overall Soft tissue anatomy within the Muensterelloidea is well-documented. Muenster (1842), who first recorded the holotype specimen of ''Muensterella'', noted its egg-shaped anatomy and apparent lack of swimming fins.Fuchs, D., Keupp, H., & Engeser, T. (2003). New records of soft parts of Muensterella scutellaris Muenster, 1842 (Coleoidea) from the Late Jurassic Plattenkalks of Eichstätt and their significance for octobrachian relationships. Berliner Paläobiologische Abhandlungen, 3, 101-111. Indeed, in all preserved specimens the same body structure is present, with all lacking a distinct swimming fin. Fuchs ''et al.'' (2003) suggested it possessed marginal fins, as a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teudopseina
The Teudopseina is a clade of stem- octopods that first evolved in the Toarcian,Fuchs, Dirk & Weis, Robert. (2010). Taxonomy, morphology and phylogeny of Lower Jurassic teudopseid coleoids (Cephalopoda). Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 257. 351-366. 10.1127/0077-7749/2010/0083. considered the largest clade of gladius-bearing coleoids in the Mesozoic. Up to five families are known, among which the Trachyteuthidae, ''Trachyteuthis'' in particular, were the most abundant.Tree of Life Project: Teudopseina ''Tree of Life Web Project''. Retrieved 2022-01-15. Description The Teudopseina can be united by five primary traits. These are the presence of a |
Listroteuthis
''Listroteuthis'' is a genus of muensterellid stem-octopod from the Moernsheim Formation of Germany. It is monotypic, with only type species ''L. conica'' known.Wagner A (1859) Revision der bisherigen systematischen Bestimmungen der Überreste von nackten Dintenfischen aus dem Süddeutschen Juragebirge." Gelehrte Anz K bayer Akad Wiss n German N, or n, is the fourteenth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''en'' (pronounced ), plural ''ens''. History ... math-phys Cl 34: 273-278Naef, A: 1922 "ie fossilen Tintenfische – Eine pal€aozoologische Monographie." Gustav Fischer, Jena 322 pp. References {{Taxonbar, from=Q107304057 Taxa described in 1922 Octopuses Prehistoric cephalopod genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enchoteuthis
''Enchoteuthis'' (meaning "spear squid") is an extinct genus of large enchoteuthine cephalopod that lived during the Cretaceous. Although it and its relative '' Tusoteuthis'' are often compared to squid, both are now thought to be more closely related to modern octopuses. Examination of gladius remains initially yielded an estimated mantle length about based on specimen once described as ''Tusoteuthis longa'', close to or equal to that of the modern giant squid, although reclassification of this genus as a muensterelloid results in a much shorter total length, about . Three species are currently recognized as valid: ''E. melanae'', ''E. tonii'', and ''E. cobbani''. Etymology The generic name ''Enchoteuthis'' is derived from the Greek ''enchos'' ("spear") and ''teuthis'' ("squid"). The specific name ''melanae'' honors Melanie Bonner, who discovered the holotype. ''E. cobbani'' is named after William Cobban. Distribution ''E. melanae'' and ''E. cobbani'' are both known from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tusoteuthis
''Tusoteuthis'' (meaning "crushed squid") is an extinct genus of large enchoteuthine cephalopod that lived during the Cretaceous. Although often called a squid, it is now thought to be more closely related to modern octopuses. Examination of gladius remains has yielded an estimated mantle length close to or equal to that of the modern giant squid. Fossil remains have been found in parts of the one-time Western Interior Seaway of North America, including Late Cretaceous rocks in Kansas, Colorado, Wyoming, South Dakota, North Dakota, and Manitoba Province. One species, ''T. longa'', is traditionally recognized. In 2019, due to poor preservation of holotype specimen, genus ''Tusoteuthis'' is likely to be invalid, and it is considered that later described species are better to include in genus '' Enchoteuthis'' instead. Etymology American paleontologist William N. Logan did not directly explain the etymology of ''Tusoteuthis'' when he named it in 1898. The generic name may be formed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patelloctopodidae
Patelloctopodidae is a family of stem-octopod cephalopods from the Middle and Late Jurassic of Europe. Five genera are currently placed in the family, '' Etchesia, Muenstellerina,'' '' Patelloctopus,'' '' Pearciteuthis'' and '' Tyrionella,'' Patelloctopodidae is one of two families in the superfamily Muensterelloidea along with the Muensterellidae Muensterellidae is a family of stem-octopod cephalopods from the Late Jurassic to Late Cretaceous. Phylogeny Muensterellidae is one of two families in the superfamily Muensterelloidea along with the Patelloctopodidae. The muensterelloids are c .... References Octopuses Prehistoric cephalopod fam ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muensterella
Muensterella is a fossil stem-octopod known from a handful of specimens from German Solnhofen plattenkalk Plattenkalk is a very finely grained limestone chemically precipitated in a stratified water column under conditions where bioturbation does not occur. The reasons for the quiet depositional environment and the processes of sediment accumulation v ....Coleoid cephalopods through time (Warnke K., Keupp H., Boletzky S. v., eds) Berliner Paläobiol. Abh. 03 101-111 Berlin 2003 NEW RECORDS OF SOFT PARTS OF MUENSTERELLA SCUTELLARIS MUENSTER, 1842 (COLEOIDEA) FROM THE LATE JURASSIC PLATTENKALKS OF EICHSTÄTT AND THEIR SIGNIFICANCE FOR OCTOBRACHIAN RELATIONSHIPS D. Fuchs*, H. Keupp & Th. Engeser References Prehistoric cephalopod genera {{Paleo-cephalopod-stub ... [...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] |
Mollusca
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopoda
A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles (muscular hydrostats) modified from the primitive molluscan foot. Fishers sometimes call cephalopods "inkfish", referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology. Cephalopods became dominant during the Ordovician period, represented by primitive nautiloids. The class now contains two, only distantly related, extant subclasses: Coleoidea, which includes octopuses, squid, and cuttlefish; and Nautiloidea, represented by ''Nautilus'' and ''Allonautilus''. In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in the Nautiloidea, the external shell remains. About 800 living species of cephalopods have been identified. Tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niobrarateuthis
''Niobrarateuthis'' is an extinct genus of large cephalopod from the Cretaceous. It is closely related to the Cretaceous ''Tusoteuthis'' and the Jurassic ''Muensterella Muensterella is a fossil stem-octopod known from a handful of specimens from German Solnhofen plattenkalk Plattenkalk is a very finely grained limestone chemically precipitated in a stratified water column under conditions where bioturbation d ...''. See also * Cephalopod size References Prehistoric cephalopod genera Cretaceous cephalopods Late Cretaceous cephalopods of North America {{paleo-cephalopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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