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List Of Placoderms
This list of placoderms is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be members of the class Placodermi. This list excludes purely vernacular terms. It includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (''nomina dubia''), or were not formally published (''nomina nuda''), as well as junior synonyms of more established names, and genera that are no longer considered placoderms. The modern descendants of placoderms, the bony and cartilaginous fishes, and their extinct descendants, the Acanthodii (without cartilaginous fishes), are not included here. This list includes 334 generic names. Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: * Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunkleosteus Terrelli 2
''Dunkleosteus'' is an extinct genus of large armored, jawed fishes that existed during the Late Devonian period, about 382–358 million years ago. It consists of ten species, some of which are among the largest placoderms to have ever lived: ''D. terrelli'', ''D. belgicus'', ''D. denisoni'', ''D. marsaisi'', ''D. magnificus'', ''D. missouriensis'', ''D. newberryi'', ''D. amblyodoratus'', and ''D. raveri''. The largest and most well known species is ''D. terrelli'', which grew up to long and in weight. ''Dunkleosteus'' could quickly open and close its jaw, like modern-day suction feeders, and had a bite force of at the tip and at the blade edge. Numerous fossils of the various species have been found in North America, Poland, Belgium, and Morocco. Etymology ''Dunkleosteus'' was named in 1956 to honour David Dunkle (1911–1982), former curator of vertebrate paleontology at the Cleveland Museum of Natural History. The genus name ''Dunkleosteus'' combines David Dunkle's sur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomen Oblitum
In zoological nomenclature, a ''nomen oblitum'' (plural: ''nomina oblita''; Latin for "forgotten name") is a disused scientific name which has been declared to be obsolete (figuratively 'forgotten') in favour of another 'protected' name. In its present meaning, the ''nomen oblitum'' came into being with the fourth, 1999, edition of the ''International Code of Zoological Nomenclature''. After 1 January 2000, a scientific name may be formally declared to be a ''nomen oblitum'' when it has been shown not to have been used as a valid name within the scientific community since 1899, and when it is either a senior synonym (there is also a more recent name which applies to the same taxon, and which is in common use) or a homonym (it is spelled the same as another name, which is in common use), and when the preferred junior synonym or homonym has been shown to be in wide use in 50 or more publications in the past few decades. Once a name has formally been declared to be a ''nomen oblitum'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1997 In Paleontology
Plants Cycadophytes Cycadophyte research *Hopkins and Johnson briefly report the first occurrence of cycad leaves from the Eocene Okanagan Highlands Klondike Mountain Formation which will later be identified to the family Zamiaceae. Angiosperms Fungi newly named Arthropoda Insects Plesiosaurs Newly Named Plesiosaurs Archosauromorphs Pterosaurs Newly Named Pterosaurs Non-avian dinosauromorphs * Paleontologist Karen Chin received a coprolite that was excavated during 1995 from strata dating back to the Maastrichtian in Saskatchewan, Canada. The specimen was about 17 inches (44 cm) long and contained fragments of bone. Due to its size, contents and age, the coprolite was believed to have been the remains of ''Tyrannosaurus rex'' feces. This discovery was announced in a 1998 paper published in the journal ''Nature''. * A Saharan expedition under the leadership of Paul Sereno yielded fruit when a team member stumbled on the bones and skull of '' Nigersa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africanaspis
''Africanaspis'' is an extinct genus of Groenlandaspididae, groenlandaspidid placoderm known from two species, ''Africanaspis doryssa'', named in 1997 from fossils discovered in South Africa and ''Africanaspis edmountaini'', named from fossils described from South Africa during 2017. ''A. edmountaini'' is only known from juvenile (organism), juvenile Biological specimen, specimens. Both species are known from the Waterloo Farm lagerstätte, Witpoort Formation. ''A. doryssa'' reached long. References Fossil taxa described in 1997 Placoderms {{placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1958 In Paleontology
Arthropods Insects Archosauromorphs Newly named non-avian dinosaurs Data courtesy of George Olshevsky's dinosaur genera list. Birds Newly named birds Synapsids Non-mammalian References {{portal, Paleontology 1950s in paleontology Paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ... Paleontology 8 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aethaspis
''Aethapsis'' is an actinolepid placoderm known from two species, ''A. major'' and ''A. utahensis''. Placoderms of North America Placoderms Paleontology in Utah Paleontology in Ohio {{placoderm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1845 In Paleontology ...
Plesiosaurs New taxa Synapsids Non-mammalian Mammals {, class="wikitable" !Name !Authors !Age !Location !Notes !Images , - , ''Coryphodon'' , Owen , 52 Million years ago. , * * () * * * * (, , , , , , , and {{Flag, Wyoming) , A hippo-like mammal. , References 1840s in paleontology Paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinolepis (placoderm)
''Actinolepis'' is an extinct genus of actinolepidH. G. Johnson, D. K. Elliott, and J. H. Wittke. 2000. A new actinolepid arthrodire (Class Placodermi) from the Lower Devonian Sevy Dolomite, east-central Nevada. Zoological Journal of the Linnean Society 129(2):241-266 . Wagner/P. Wagner/P. Wagner/ref> placoderm from the Early Devonian. Four species are known: ''A. magna'' from Estonia,R. Denison. 1978. Placodermi. In H.-P. Schultze (ed.), Handbook of Palaeoichthyology 2:1-128 . Dahdul/B. Frable /G. Lloyd/ref> ''A. spinosa'' from Latvia ( Sevy Dolomite), the type species ''A. tuberculata'' from New Zealand ( Adam Mudstone Formation) and ''A. zaikai'' from Belarus ( Lepel Beds). Gallery Estonian Museum of Natural History Specimen No 203503 photo (g204 g204-1 jpg).jpg, Fragmentary dorsal armour of ''A. magna'' (specimen EMNH 203503); housed at the Estonian Museum of Natural History The Estonian Museum of Natural History (abbreviated EMNH; Estonian language, Estonian: ''Ees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1846 In Paleontology ...
Archosauromorphs New taxa Pterosaurs New taxa Sauropterygians Newly named plesiosaurs References {{Reflist 1840s in paleontology Paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina (fish)
''Argentina'' is a genus of fishes in the family Argentinidae. Species There are currently 13 recognized species in this genus: * '' Argentina aliceae'' Cohen & Atsaides, 1969 (Alice Argentina) * '' Argentina australiae'' Cohen, 1958 * '' Argentina brasiliensis'' Kobyliansky, 2004 * '' Argentina brucei'' Cohen & Atsaides, 1969 (Bruce's Argentine) * '' Argentina elongata'' F. W. Hutton, 1879 * '' Argentina euchus'' Cohen, 1961 * '' Argentina georgei'' Cohen & Atsaides, 1969 * ''Argentina kagoshimae'' D. S. Jordan & Snyder, 1902 * '' Argentina lei'' * '' Argentina sialis'' C. H. Gilbert, 1890 (North-Pacific Argentine) * '' Argentina silus'' (Ascanius, 1775) (Greater Argentine) * ''Argentina sphyraena'' Linnaeus, 1758 (Argentine) * '' Argentina stewarti'' Cohen & Atsaides, 1969 * '' Argentina striata'' Goode Goode ( or , depending on family) is a surname. Notable people Notable people with the surname include: * Alex Goode (Born 1988), British rugby union player ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kujdanowiaspis
''Kujdanowiaspis'' is an extinct genus of actinolepid placoderm from the Early Devonian of Nyrkiv, Ukraine and Poland. As an actinolepid, it is among the most basal of all placoderms. ''Kujdanowiaspis'' is only known from many well-preserved fragmentary head shield and skull fossils. After revising the genus in 2010, Dupret left three species within the genus: ''K. buczacziensis'', ''K. podolica'' and possibly also ''K. zychi''. Description Because of the consistently poor preservation of ''Kujdanowiaspis'' fossils, little is known about its physiology. What is known about it is typical of Actinolepid placoderms, and it could be compared to the better known primitive arthrodires such as '' Dicksonosteus'' or '' Actinolepis''. It had a very pronounced, serrated spinal plate, giving it an almost lunate dorsal silhouette. Its body is wide and flat, suggesting a benthic lifestyle. Its jaws were comparatively underdeveloped in comparison to the more robust-jawed arthrodires that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1875 In Paleontology
Dinosaurs Pterosaurs New taxa Synapsids Ophiacodontidae Paleontologists * Birth of Friedrich von Huene, the well known German paleontologist.{{cite book, last = Farlow, first = James O., author2= M. K. Brett-Surmann, title = The Complete Dinosaur, publisher = Indiana University Press, year = 1999, location = Bloomington, Indiana, pages = 17, isbn = 0-253-21313-4 References 1870s in paleontology Paleontology, 1875 In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
