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Flindersicthys
''Flindersichthys'' is an extinct genus of prehistoric bony fish that lived during the Albian stage of the Early Cretaceous epoch. Description ''Flindersichthys'' was a large fish growing over 1.25 meters long and with an estimated body depth of over 30 centimeters. The holotype specimen, QMF2210, is a nearly complete skull found near the Flinders River, one mile east of Richmond, Queensland, Richmond, Queensland, in the sediments of the Toolebuc Formation. Several other specimens are also known, mostly from the Toolebuc Formation, though some are from the Allaru Formation, Allaru and Normanton formation, Normanton formations. It is assigned to the Elopiformes order, but while it shares some features with Megalopid, megalopids it is considered ''incertae sedis'' below this level. Judging from its dentition and the fact that the specimen QMF13720 has small, isolated Vertebra, vertebrae of a teleost fish in the mouth, ''Flindersichthys'' is believed to be a predator of smaller fish. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elopiformes
The Elopiformes are the order of ray-finned fish including the tarpons, tenpounders, and ladyfish, as well as a number of extinct types. They have a long fossil record, easily distinguished from other fishes by the presence of an additional set of bones in the throat. They are related to the order of eels, although the adults superficially resemble very large or giant herrings in appearance. The larvae, however, are leptocephalic, looking very similar to those of eels. Classification Although many fossil forms are known, the order is relatively small today, containing just two genera and nine species: * Order Elopiformes Gosline 1960 ** Genus ?†'' Dinelops'' Woodward, 1907 ** Family † Anaethaliidae Gaudant 1968 naethalionidae Gaudant 1967*** Genus †'' Daitingichthys'' Arratia 1987 *** Genus †'' Anaethalion'' White 1938 Aethalion.html" ;"title="'Aethalion">'Aethalion'' von Münster 1842 non Lepeletier & Serville 1828*** Genus †''Holcolepis'' von der Marck 1868 [ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Prehistoric Bony Fish
This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (''nomen dubium, nomina dubia''), or were not formally published (''nomen nudum, nomina nuda''), as well as synonym (zoology), junior synonyms of more established names, and genera that are no longer considered members of osteichthyes. This list includes 1,387 generic names. *extinction, Extinct genera are marked with a dagger (†). *Extant taxon, Extant genera are bolded. Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: * Synonym (zoology), Junior synonym: A name which describes the same taxon as a previously published name. If two or more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalopid
Tarpon are fish of the genus ''Megalops''. They are the only members of the family Megalopidae. Of the two species, one (''M. atlanticus'') is native to the Atlantic, and the other (''M. cyprinoides'') to the Indo-Pacific Oceans. Species and habitats The two species of tarpon are ''M. atlanticus'' (Atlantic tarpon) and ''M. cyprinoides'' (Indo-Pacific tarpon): *''M. atlanticus'' is found on the western Atlantic coast from Virginia to Brazil, throughout the Caribbean and the coast of the Gulf of Mexico. Tarpon are also found along the eastern Atlantic coast from Senegal to South Angola." Megalops atlanticus", www.fishbase.org, 11 February 2010. *''M. cyprinoides'' is found along the eastern African coast, throughout Southeast Asia, Japan, Tahiti, and Australia. Both species are found in marine and freshwater habitats, usually ascending rivers to access freshwater marshes." Megalops cyprinoides", www.fishbase.org, 11 February 2010. They are able to survive in brackish wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Fish
__NOTOC__ Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called ''paleoichthyology''. A few living forms, such as the coelacanth are also referred to as prehistoric fish, or even living fossils, due to their current rarity and similarity to extinct forms. Fish which have become recently extinct are not usually referred to as prehistoric fish. Lists of various prehistoric fishes include: * List of prehistoric jawless fish * List of placoderms * List of acanthodians * List of prehistoric cartilaginous fish *List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ... * List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleost
Teleostei (; Ancient Greek, Greek ''teleios'' "complete" + ''osteon'' "bone"), members of which are known as teleosts (), is, by far, the largest group of ray-finned fishes (class Actinopterygii), with 96% of all neontology, extant species of fish. The Teleostei, which is variously considered a Division (zoology), division or an infraclass in different taxonomic systems, include over 26,000 species that are arranged in about 40 order (biology), orders and 448 family (biology), families. Teleosts range from giant oarfish measuring or more, and ocean sunfish weighing over , to the minute male anglerfish ''Photocorynus spiniceps'', just long. Including not only torpedo-shaped fish built for speed, teleosts can be flattened vertically or horizontally, be elongated cylinders or take specialised shapes as in anglerfish and seahorses. The difference between teleosts and other bony fish lies mainly in their jaw bones; teleosts have a movable premaxilla and corresponding modifications ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertebra
Each vertebra (: vertebrae) is an irregular bone with a complex structure composed of bone and some hyaline cartilage, that make up the vertebral column or spine, of vertebrates. The proportions of the vertebrae differ according to their spinal segment and the particular species. The basic configuration of a vertebra varies; the vertebral body (also ''centrum'') is of bone and bears the load of the vertebral column. The upper and lower surfaces of the vertebra body give attachment to the intervertebral discs. The posterior part of a vertebra forms a vertebral arch, in eleven parts, consisting of two pedicles (pedicle of vertebral arch), two laminae, and seven processes. The laminae give attachment to the ligamenta flava (ligaments of the spine). There are vertebral notches formed from the shape of the pedicles, which form the intervertebral foramina when the vertebrae articulate. These foramina are the entry and exit conduits for the spinal nerves. The body of the vertebr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dentition
Dentition pertains to the development of teeth and their arrangement in the mouth. In particular, it is the characteristic arrangement, kind, and number of teeth in a given species at a given age. That is, the number, type, and morpho-physiology (that is, the relationship between the shape and form of the tooth in question and its inferred function) of the teeth of an animal. Terminology Animals whose teeth are all of the same type, such as most non-mammalian vertebrates, are said to have '' homodont'' dentition, whereas those whose teeth differ morphologically are said to have '' heterodont'' dentition. The dentition of animals with two successions of teeth (deciduous, permanent) is referred to as '' diphyodont'', while the dentition of animals with only one set of teeth throughout life is ''monophyodont''. The dentition of animals in which the teeth are continuously discarded and replaced throughout life is termed '' polyphyodont''. The dentition of animals in which the teeth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incertae Sedis
or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by (of uncertain family), (of uncertain suborder), (of uncertain order) and similar terms. Examples * The fossil plant ''Paradinandra, Paradinandra suecica'' could not be assigned to any family, but was placed ''incertae sedis'' within the order Ericales when described in 2001. * The fossil ''Gluteus minimus (fossil), Gluteus minimus'', described in 1975, could not be assigned to any known animal phylum. The genus is therefore ''incertae sedis'' within the kingdom Animalia. * While it was unclear to which order the New World vultures (family Cathartidae) should be assigned, they were placed in Aves ''incertae sedis''. It was later agreed to place them in a separate order, Cathartiformes. * Boc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albian
The Albian is both an age (geology), age of the geologic timescale and a stage (stratigraphy), stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early Cretaceous, Early/Lower Cretaceous epoch (geology), Epoch/series (stratigraphy), Series. Its approximate time range is 113.0 ± 1.0 annum, Ma to 100.5 ± 0.9 Ma (million years ago). The Albian is preceded by the Aptian and followed by the Cenomanian. Stratigraphic definitions The Albian Stage was first proposed in 1842 by Alcide d'Orbigny. It was named after Alba, the Latin name for Aube (river), River Aube in France. A Global Boundary Stratotype Section and Point (GSSP), ratified by the IUGS in 2016, defines the base of the Albian as the first occurrence of the planktonic foraminiferan ''Hedbergellidae, Microhedbergella renilaevis'' at the Col de Pré-Guittard section, Arnayon, Drôme, France. The top of the Albian Stage (the base of the Cenomanian Stage and Upper Cretaceous Series) is defined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bony Fish
Osteichthyes ( ; ), also known as osteichthyans or commonly referred to as the bony fish, is a Biodiversity, diverse clade of vertebrate animals that have endoskeletons primarily composed of bone tissue. They can be contrasted with the Chondrichthyes (cartilaginous fish) and the extinct placoderms and acanthodians, which have endoskeletons primarily composed of cartilage. The vast majority of extant taxon, extant fish are members of Osteichthyes, being an extremely diverse and abundant group consisting of 45 order (biology), orders, over 435 family (biology), families and 28,000 species. The group is divided into two main clades, the ray-finned fish (Actinopterygii, which makes up the vast majority of extant fish) and the lobe-finned fish (Sarcopterygii, which gave rise to all land vertebrates, i.e. tetrapods). The oldest known fossils of bony fish are about 425 million years old from the late Silurian, which are also transitional fossils showing a dentition, tooth pattern th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normanton Formation
Normanton is the name of: England *Normanton, Derby *South Normanton, Derbyshire *Temple Normanton, Derbyshire * Normanton, Leicestershire * Normanton, Lincolnshire * Normanton, Rutland *Normanton, West Yorkshire **Normanton (UK Parliament constituency) (old) **Normanton, Pontefract and Castleford (UK Parliament constituency) (new) ** Normanton (rugby league), a former semi-professional club * Normanton, Wiltshire * Normanton le Heath, Leicestershire * Normanton on Soar, Nottinghamshire * Normanton-on-the-Wolds, Nottinghamshire * Normanton on Trent, Nottinghamshire Australia *Normanton, Queensland Other * Normanton incident – a maritime incident off the coast of Japan in 1886 * Earl of Normanton Earl of Normanton is a title in the Peerage of Ireland. It was created in 1806 for Charles Agar, 1st Viscount Somerton, Archbishop of Dublin. He had already been created Baron Somerton, of Somerton in the County of Kilkenny, in 1795 and Visco ... See also * Normantown (disa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allaru Formation
The Allaru Formation, also known as the Allaru Mudstone, is a geological formation in Queensland, Australia, whose strata date back to the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel ''et al.'', 2004, pp.573-574 Fossil content Possible indeterminate ankylosaur remains are present in Queensland. Indeterminate ornithopod remains are present in Queensland. Archosaurs Dinosaurs Reptiles Fish Invertebrates See also * List of dinosaur-bearing rock formations ** Winton Formation * Paja Formation, contemporaneous Lagerstätte in Colombia * Sierra Madre Formation, contemporaneous fossiliferous formation of Mexico * Santana Group, contemporaneous Lagerstätte in northeastern Brazil ** Crato Formation ** Romualdo Formation * South Polar region of the Cretaceous The South Polar region of the Cretaceous comprised the continent of East Gondwana–modern day Australia, Zealandia, and Antarctica–a pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
