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Neuquensaurus
''Neuquensaurus'' (meaning " Neuquén lizard") is a genus of saltasaurid sauropod dinosaur that lived in the Late Cretaceous, about 80 million years ago in Argentina and Uruguay in South America. Its fossils were recovered from outcrops of the Anacleto Formation around Cinco Saltos, near the Neuquén river from which its name is derived. History In 1893, Richard Lydekker named ''Titanosaurus australis'', based on a series of caudal vertebrae and limb elements. The remains had been found by Santiago Roth and F. Romero in the Neuquén Province of Argentina at the Neuquén River, and were by Lydekker assigned to a single individual. Six caudal vertebrae, with the inventory numbers MLP Ly 1-6-V-28-1, were the holotype of the species. They had probably been found in a layer of the Anacleto Formation. Some elements that had been referred to ''Titanosaurus australis'' were reassigned to ''Laplatasaurus araukanicus'' by Friedrich von Huene in 1929. The same year, von Huene named a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neuquensaurus Scale
''Neuquensaurus'' (meaning "Neuquén lizard") is a genus of saltasaurid sauropod dinosaur that lived in the Late Cretaceous, about 80 million years ago in Argentina and Uruguay in South America. Its fossils were recovered from outcrops of the Anacleto Formation around Cinco Saltos, near the Neuquén river from which its name is derived. History In 1893, Richard Lydekker named ''Titanosaurus australis'', based on a series of caudal vertebrae and limb elements. The remains had been found by Santiago Roth and F. Romero in the Neuquén Province of Argentina at the Neuquén River, and were by Lydekker assigned to a single individual. Six caudal vertebrae, with the inventory numbers MLP Ly 1-6-V-28-1, were the holotype of the species. They had probably been found in a layer of the Anacleto Formation. Some elements that had been referred to ''Titanosaurus australis'' were reassigned to '' Laplatasaurus araukanicus'' by Friedrich von Huene in 1929. The same year, von Huene named a '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anacleto Formation
The Anacleto Formation is a geologic formation with outcrops in the Argentine Patagonian provinces of Mendoza, Río Negro, and Neuquén. It is the youngest formation within the Neuquén Group and belongs to the Río Colorado Subgroup. Formerly that subgroup was treated as a formation, and the Anacleto Formation was known as the Anacleto Member. The type locality of this formation lies west of the city of Neuquén. At its base, the Anacleto Formation conformably overlies the Bajo de la Carpa Formation, also of the Río Colorado Subgroup, and it is in turn unconformably overlain by the Allen Formation of the younger Malargüe Group. The Anacleto Formation varies between thick, and consists mainly of claystones and mudstones, purple and dark red in color, deposited in fluvial, lacustrine and floodplain environments. Geodes are often found scattered throughout this formation. Fossil content The following animals are known from bones found in the Anacleto Formation: * s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loricosaurus
''Loricosaurus'' (meaning "armour lizard") is a genus of sauropod represented by a single species. It is a titanosaurian that lived near the end of the Late Cretaceous period, approximately 71 million years ago in the early Maastrichtian. Found in the province of Neuquen, Argentina in the Allen Formation. Due to the presence of armour, at first it was thought that it was an ankylosaur, but today it is considered to be the armour of a titanosaur. Armour The armour of ''Loricosaurus'' has caused some controversy. When Huene first described it, he considered it to be from an ankylosaur. Later, it was discovered to not belong to ankylosaurs, but to belong to titanosaurs.Holtz, Thomas R Jr. (2011) ''Dinosaurs: The Most Complete,Up-to-date Encyclopedia for Dinosaur Lovers Of All Ages, Winter 2010 Appendix./ref> Now it is considered to possibly belong to ''Neuquensaurus'' or ''Saltasaurus''. Species In 1929 von Huene described ''Loricosaurus'' based on some armour osteoderms found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saltasaurid
Saltasauridae (named after the Salta region of Argentina where they were first found) is a family of armored herbivorous sauropods from the Upper Cretaceous. They are known from fossils found in South America, Asia, North America, and Europe. They are characterized by their vertebrae and feet, which are similar to those of '' Saltasaurus'', the first of the group to be discovered and the source of the name. The last and largest of the group and only one found in North America, ''Alamosaurus'', was in length and one of the last sauropods to go extinct. Most of the saltasaurids were smaller, around in length, and one, ''Rocasaurus'', was only long. Like all sauropods, the saltasaurids were quadrupeds, their necks and tails were held almost parallel to the ground, and their small heads had only tiny, peg-like teeth. They were herbivorous, stripping leaves off of plants and digesting them in their enormous guts. Although large animals, they were smaller than other sauropods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titanosaurus
''Titanosaurus'' (; ) is a dubious genus of sauropod dinosaurs, first described by Richard Lydekker in 1877.R. Lydekker. (1877). Notices of new and other Vertebrata from Indian Tertiary and Secondary rocks. ''Records of the Geological Survey of India'' 10(1):30-43 It is known from the Maastrichtian (Upper Cretaceous) Lameta Formation of India. Discovery and naming ''Titanosaurus'', literally meaning 'titanic lizard', was named after the mythological Titans. ''Titanosaurus'' was the first Indian dinosaur to be named and properly described, having been recorded for the first time in 1877. The type species, ''T. indicus'', was named in 1877, and the second species, ''T. blanfordi'', was named in 1879.R. Lydekker. (1879). Fossil Reptilia and Batrachia. ''Memoirs of the Geological Survey of India. Palaeontologia Indica, Series IV. Indian Pretertiary Vertebrata'' 1(3):1-36 Both species were named by Richard Lydekker. ''T. indicus'' and ''T. blanfordi'' are 70 million years old. ''T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microcoelus
''Microcoelus'' (meaning "small hollow") is a dubious genus of small titanosaurian sauropod dinosaur native to Argentina.A. Otero and M. Reguero. (2013).Dinosaurs (Reptilia, Archosauria) at Museo de La Plata, Argentina: annotated catalogue of the type material and Antarctic specimens. ''Palaeontologia Electronica'', 16(1): 1–24. It is known from only a single dorsal vertebra. A left humerus was formerly referred to this species, but it is now considered to belong to ''Neuquensaurus''. This species may be a synonym of the contemporary sauropod ''Neuquensaurus australis''.J. S. McIntosh. 1990. Sauropoda. In D. B. Weishampel, H. Osmólska, and P. Dodson (eds.), ''The Dinosauria''. ''University of California Press, Berkeley'' 345–401 It was described by British paleontologist Richard Lydekker Richard Lydekker (; 25 July 1849 – 16 April 1915) was an English naturalist, geologist and writer of numerous books on natural history. Biography Richard Lydekker was born at Tavis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saltasaurus
''Saltasaurus'' (which means "lizard from Salta") is a genus of saltasaurid dinosaur of the Late Cretaceous period of Argentina. Small among sauropods, though still heavy by the standards of modern creatures, ''Saltasaurus'' was characterized by a short neck and stubby limbs. It was the first genus of sauropod known to possess armour of bony plates embedded in its skin. Such small bony plates, called osteoderms, have since been found on other titanosaurians. Discovery The fossils of ''Saltasaurus'' were excavated by José Bonaparte, Martín Vince and Juan C. Leal between 1975 and 1977 at the Estancia "El Brete". The find was in 1977 reported in the scientific literature. ''Saltasaurus'' was named and described by Bonaparte and Jaime E. Powell in 1980. The type species is ''Saltasaurus loricatus''. Its generic name is derived from Salta Province, the region of north-west Argentina where the first fossils were recovered. The specific name means "protected by small armoured plate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1992 In Paleontology
Plants Cycads Conifers Angiosperms Arthropods Insects Archosauromorphs * During the 1992 field season a concerted effort was undertaken by the Royal Tyrell Museum to recover the remains of young hadrosaurs. The researchers describe the acquisition that season of 43 specimens as being a success. Most of the recovered fossils were of dentaries missing their teeth, bones from limbs and feet, as well as vertebral centra. * Jack Horner speculated that transitional species evolved in the uppermost part of the Two Medicine Formation during the Bearpaw Transgression. This was during a half-million year span as the transgression inundated the Judith River Formation and, later, the Two Medicine area, gradually destroying the local dinosaurs' preferred habitats. Horner cited certain ceratopsid and pachycephalosaurid species as possible evidence for his hypothesis. Newly named non-avian dinosaurs Data courtesy of George Olshevsky's dinosaur genera list. Newly named birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomen Dubium
In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a specimen belongs to that group or not. This may happen if the original type series (i. e. holotype, isotype, syntype or paratype) is lost or destroyed. The zoological and botanical codes allow for a new type specimen, or neotype, to be chosen in this case. A name may also be considered a ''nomen dubium'' if its name-bearing type is fragmentary or lacking important diagnostic features (this is often the case for species known only as fossils). To preserve stability of names, the ''International Code of Zoological Nomenclature'' allows a new type specimen, or neotype, to be chosen for a ''nomen dubium'' in this case. 75.5. Replacement of unidentifiable name-bearing type by a neotype. When an author considers that the taxonomic identity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syntype
In biological nomenclature, a syntype is any one of two or more biological types that is listed in a description of a taxon where no holotype was designated. Precise definitions of this and related terms for types have been established as part of the International Code of Zoological Nomenclature and the International Code of Nomenclature for algae, fungi, and plants. In zoology In zoological nomenclature, a syntype is defined as "Each specimen of a type series (q.v.) from which neither a holotype nor a lectotype has been designated rts. 72.1.2, 73.2, 74 The syntypes collectively constitute the name-bearing type." (Glossary of the zoological Code ). Historically, syntypes were often explicitly designated as such, and under the present ICZN this is a requirement (Art. 72.3), but modern attempts to publish species or subspecies descriptions based on syntypes are generally frowned upon by practicing taxonomists, and most are gradually being replaced by lectotypes. Those that still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laplatasaurus
''Laplatasaurus'' (meaning "La Plata lizard", named for La Plata, Argentina) is a genus of titanosaurian sauropod dinosaur that lived during the Late Cretaceous in South America, with the holotype and only known specimen found in the Anacleto Formation. Naming and description The genus was named in 1927 by Friedrich von Huene, but without a description, so that it remained a ''nomen nudum''. In 1929 the type species, ''Laplatasaurus araukanicus'', was described by Huene. The generic name refers to La Plata. The specific name is derived from the ''Araucanos'' or Mapuche. By accident Huene in 1929 also mentioned a "Laplatasaurus wichmannianus" but that was a ''lapsus calami'' for ''Antarctosaurus wichmannianus''. In 1933 however, he and Charles Alfred Matley renamed ''Titanosaurus madagascariensis'' to ''Laplatasaurus madagascariensis''. This last species is today commonly referred to the original ''Titanosaurus''. Huene based ''Laplatasaurus'' on fragmentary material found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
