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Malawisaurus
''Malawisaurus'' (meaning "Malawi lizard") is an extinct genus of titanosaurian sauropod dinosaur. It is known from the Dinosaur Beds of northern Malawi, which probably date to the Aptian stage of the Early Cretaceous. The type species is ''M. dixeyi'' and the specific name honours Frederick Augustus Dixey. Discovery and naming ''Malawisaurus dixeyi'' was originally described in 1928 by Sidney H. Haughton as a species of '' Gigantosaurus'' (an invalid name for the diplodocid currently known as '' Tornieria''). Haughton considered it closely related to the species ''G. robustus'' (later the type species of '' Janenschia''). The holotype was discovered in the " Dinosaur Beds" of Malawi (then known as the Nyasaland Protectorate), which are usually considered to be of Barremian-Aptian age based on K–Ar dating, though they have also been suggested to be Late Cretaceous in age based on the vertebrate assemblage, and possibly also the Lupata Group. In 1993 it was placed in the n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malawisaurus Scale
''Malawisaurus'' (meaning " Malawi lizard") is an extinct genus of titanosaurian sauropod dinosaur. It is known from the Dinosaur Beds of northern Malawi, which probably date to the Aptian stage of the Early Cretaceous. The type species is ''M. dixeyi'' and the specific name honours Frederick Augustus Dixey. Discovery and naming ''Malawisaurus dixeyi'' was originally described in 1928 by Sidney H. Haughton as a species of '' Gigantosaurus'' (an invalid name for the diplodocid currently known as '' Tornieria''). Haughton considered it closely related to the species ''G. robustus'' (later the type species of '' Janenschia''). The holotype was discovered in the " Dinosaur Beds" of Malawi (then known as the Nyasaland Protectorate), which are usually considered to be of Barremian-Aptian age based on K–Ar dating, though they have also been suggested to be Late Cretaceous in age based on the vertebrate assemblage, and possibly also the Lupata Group. In 1993 it was placed in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanosaurian
Titanosaurs (or titanosaurians; members of the group Titanosauria) were a diverse group of sauropod dinosaurs, including genera from all seven continents. The titanosaurs were the last surviving group of long-necked sauropods, with taxa still thriving at the time of the extinction event at the end of the Cretaceous. This group includes some of the largest land animals known to have ever existed, such as ''Patagotitan''—estimated at long with a weight of —and the comparably-sized ''Argentinosaurus'' and ''Puertasaurus'' from the same region. The group's name alludes to the mythological Titans of ancient Greek mythology, via the type genus (now considered a ''nomen dubium)'' ''Titanosaurus''. Together with the brachiosaurids and relatives, titanosaurs make up the larger sauropod clade Titanosauriformes. Titanosaurs have long been a poorly-known group, and the relationships between titanosaur species are still not well-understood. Description Titanosauria have the largest r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alcântara Formation
The Alcântara Formation is a geological formation in northeastern Brazil whose strata date back to the Cenomanian of the Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', .... Fossil content Dinosaurs Pterosauria Crocodylomorphs Turtles Squamates Fish References {{DEFAULTSORT:Alcantara Formation Geologic formations of Brazil Upper Cretaceous Series of South America Cretaceous Brazil Cenomanian Stage Sandstone formations Shale formations Conglomerate formations Shallow marine deposits Fossiliferous stratigraphic units of South America Paleontology in Brazil Formations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lupata Group
The Lupata Group is an Aptian geologic group in the Tete Province of Mozambique and the Northern Region of Malawi. The group contains the Dinosaur Beds, a fossiliferous unit in Malawi that has provided dinosaur remains.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607 Fossil content The following fossils have been reported from the formation: at .org * '' Karongasaurus gittelmani'' * '' |
Karongasaurus
''Karongasaurus'' (meaning "Karonga District" lizard) is a genus of titanosaur sauropod dinosaur from the Early Cretaceous. The type species, ''K. gittelmani'', was described by Elizabeth Gomani in 2005.Gomani, E. M. (2005)Sauropod Dinosaurs from the Early Cretaceous of Malawi, Africa ''Palaeontologia Electronica'' Volume: 8, Issue: 1, Pages: 37pp. Discovery and naming The holotype (specimen Mal-175), consisting solely of part of a lower mandible and twenty isolated teeth, were found in the Dinosaur Beds of Malawi between 1987 and 1992. ''Karongasaurus'' was the first dinosaur named in a publication that was published solely online; ''Karongasaurus gittelmani'' was named and described by Gomani (2005). Description The mandible of ''Karongasaurus'' is U-shaped in dorsal view and the teeth are described as slender and conical in shape, being more cylindrical than those of ''Malawisaurus''. Classification Gomani (2005) placed ''Karongasaurus'' within Titanosauria and concluded that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinosaur Beds
The Dinosaur Beds is a geological formation in Malawi whose strata date back to the Early Cretaceous. The age of the deposit is poorly constrained, but is likely to date from the Barremian to Aptian. Dinosaurs, turtles and crocodyliomorphs remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Africa)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 571-573. . It is correlated with the Galula Formation in Tanzania. It consists of two members, a lower unfossiliferous member consisting of deep red stained sandstones, and an upper fossiliferous member consisting of white sands and grey to red mudstones and siltstones. The upper member is 210 m thick in the vicinity of the CD-9 locality. Vertebrate paleofauna * '' Karongasaurus gittelmani'' - A lower mandible and a few teeth * ''Malawisaurus dixeyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauropod
Sauropoda (), whose members are known as sauropods (; from '' sauro-'' + '' -pod'', 'lizard-footed'), is a clade of saurischian ('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their body), and four thick, pillar-like legs. They are notable for the enormous sizes attained by some species, and the group includes the largest animals to have ever lived on land. Well-known genera include '' Brachiosaurus'', '' Diplodocus'', ''Apatosaurus'' and '' Brontosaurus''. The oldest known unequivocal sauropod dinosaurs are known from the Early Jurassic. '' Isanosaurus'' and '' Antetonitrus'' were originally described as Triassic sauropods, but their age, and in the case of ''Antetonitrus'' also its sauropod status, were subsequently questioned. Sauropod-like sauropodomorph tracks from the Fleming Fjord Formation (Greenland) might, however, indicate the occurrence of the group in the Late Triassic. By the Late Jurassic (150 mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornieria
''Tornieria'' ("for Tornier") is a genus of diplodocid sauropod dinosaur from the Late Jurassic in Lindi Region of Tanzania. It has a convoluted taxonomic history. Discovery and naming In 1907, German paleontologist Eberhard Fraas who was working the Tendaguru Beds in German East Africa (presently Tanzania), discovered two sauropod specimens at a single site ("Quarry A"). The two individuals, designated "Skeleton A" and "Skeleton B", each represented a different sauropod species. In 1908 he named these respectively ''Gigantosaurus africanus'' ("African giant lizard") and ''G. robustus'' ("Robust giant lizard"). A third, unrelated African species, "Gigantosaurus" ''dixeyi'', was named by Haughton in 1928, and has since been reassigned to ''Malawisaurus''. However, the name ''Gigantosaurus'' had already been used for the European sauropod ''Gigantosaurus megalonyx'' Seeley, 1869. Fraas, not intending to place his species in the same genus as this English form, had believed that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis L
Louis may refer to: * Louis (coin) * Louis (given name), origin and several individuals with this name * Louis (surname) * Louis (singer), Serbian singer * HMS ''Louis'', two ships of the Royal Navy See also Derived or associated terms * Lewis (other) * Louie (other) * Luis (other) * Louise (other) * Louisville (other) * Louis Cruise Lines * Louis dressing, for salad * Louis Quinze, design style Associated names * * Chlodwig, the origin of the name Ludwig, which is translated to English as "Louis" * Ladislav and László - names sometimes erroneously associated with "Louis" * Ludovic, Ludwig Ludwig may refer to: People and fictional characters * Ludwig (given name), including a list of people and fictional characters * Ludwig (surname), including a list of people * Ludwig Ahgren, or simply Ludwig, American YouTube live streamer and co ..., Ludwick, Ludwik, names sometimes translated to English as "Louis" {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessaril ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Cretaceous
The Early Cretaceous (geochronological name) or the Lower Cretaceous ( chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 145 Ma to 100.5 Ma. Geology Proposals for the exact age of the Barremian-Aptian boundary ranged from 126 to 117 Ma until recently (as of 2019), but based on drillholes in Svalbard the defining early Aptian Oceanic Anoxic Event 1a (OAE1a) was carbon isotope dated to 123.1±0.3 Ma, limiting the possible range for the boundary to c. 122–121 Ma. There is a possible link between this anoxic event and a series of Early Cretaceous large igneous provinces (LIP). The Ontong Java- Manihiki- Hikurangi large igneous province, emplaced in the South Pacific at c. 120 Ma, is by far the largest LIP in Earth's history. The Ontong Java Plateau today covers an area of 1,860,000 km2. In the Indian Ocean another LIP began to form at c. 120 Ma, the Kergue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
