Texan paleontologist Sankar Chatterjee proposed that a new type specimen, a complete skeleton, be designated.
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The holotype amber specimen, number H-10-135, is currently preserved in the amber collections of noted amber researcher George Poinar, Jr., which at the time of description were housed in the University of California, Berkeley.
The holotype specimen of Acristavus, MOR 1155, was recovered at the Two Medicine Formation, in Teton County, Montana.
The Teylers Museum has a holotype specimen Atoposaurus oberndorfi that was bought by curator J.G.S. van Breda in 1863 from Adam August Krantz (1809-1872), dealer in minerals in Bonn from 1850 onwards.
Its fossil, holotype BMNH 42997 (now NHM R 42997), a part of a right femur, 312 mm long, was found in the Netherlands near Maastricht, and originally described as a new species of Megalosaurus in 1883 by Harry Seeley: M. bredai, honouring the late Dutch biologist and geologist Jacob Gijsbertus Samuël van Breda, a director of the Teylers Museum, who had collected the fossil at some time between 1820 and 1860 from the chalkstone quarry at the St Pietersberg.
The holotype consists of a dentary, cervical and sacral vertebrae, one ungual and remains of the pelvic region, that were collected near Presidente Prudente city São Paulo state.
The broadnose catshark, Apristurus investigatoris, is a cat shark of the family Scyliorhinidae the holotype and only specimen being found in deepwater in the Andaman Sea in the Indian Ocean between latitudes 16° N and 10° N.
The holotype of this species had been found East of Sakaraha in the Zombitse-Vohibasia National Park at 640m.
It is known only from the holotype specimen from the Mexico City area.
The holotype left humerus is held in the American Museum of Natural History (AMNH), which was a sponsor of the 1898-99 Patagonian expedition, led by John Bell Hatcher, on which Brown was the AMNH representative.
The specific epithet delgadii refers to Gancho do Generale Delgado, along the road to Caldas Novas, Brazil, where the type material was collected.
Large and Braggins (2004) note that the holotype of C. humilis is "almost certainly a juvenile of Cyathea stuhlmannii", a taxon also described by Hieronymus.
The type specimen was found in an iron-cemented sandstone concretion near Salina.
After reexamination of the holotype Wu and Chatterjee found D. xingsuensis to be a synonym of D. elaphros, leaving only one species in the genus.
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Dibothrosuchus was named in 1965 by D.J. Simmons based on a partial skull and skeleton collected by Father Oehler of Fu Jen Catholic University from mudstones near the village of Dawa.
Isotype specimens, those that are duplicates of the holotype, were distributed to several herbaria, including those at the University of North Carolina, the New York Botanical Garden, the National Herbarium of New South Wales, and the Queensland Herbarium.
The holotype (specimen number MNHN PM69) is now in the Musée d'histoire naturelle - Guimet in Lyon and includes an upper jaw (with approaches of the zygomatic bone and two maxillary branches, each of the two posterior premolars (P3 and 4) and three molars (M1-3)).
McKay designated a specimen collected in 1965 from Mandapam Camp in India to be the holotype.
The type species is known from the holotype IVPP V6064, a nearly complete skull which was collected in the Zhuengeerqi locality, from the upper Heshanggou Formation (Olenekian and earliest Anisian stages), Ordos Basin.
The holotype was collected in the campus of the University of Agricultural Sciences at Bangalore in the state of Karnataka in India.
cristatus is based on specimen BSP 1892.IV.1, from the Solnhofen limestone of Eichstätt, Germany.
The holotype leaf is numbered number WWU-GK-020 and the paratype is number WWU-GK-008, both of which are currently preserved in the paleobotanical collections of Western Washington University in Bellingham, Washington.
Gryposaurus is based on specimen NMC 2278, a skull and partial skeleton collected in 1913 by George F. Sternberg from what is now known as the Dinosaur Park Formation of Alberta, along the Red Deer River.
Guaibasaurus was originally named on the basis of the holotype, MCN PV2355, a well-preserved partial postcranial skeleton and the paratype, MCN PV2356, an articulated and nearly complete left hindlimb, which were discovered in the "Sesmaria do Pinhal 2" locality near Candelária, Rio Grande do Sul, in Brazil, in the geopark of Paleorrota.
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The specific name is named after Candelária, a city near the fossil locality in which the holotype was found.
The original holotype specimen had been collected on 14 June 1880 in the vicinity of Western Port in Victoria by a Miss M.R. Lewellin and sent by Ferdinand von Mueller to Kalchbrenner in Budapest.
This species has a wingspan of 50 mm and the holotype provided from Tonkin.
In May 2010 the fossils comprising Hypselospinus were by David Norman reclassified as a separate genus, among them the holotype BMNH R1635, consisting of a left ilium, a sacrum, tail vertebrae and teeth.
The holotype of I. epakmos is from the Verde River; it is a small stream with clear water and moderate to strong current, with loose stones and, in some places, sand on the bottom.
It is known from the holotype BP/1/1187, skull and partial postcranium, which was first assigned to the more derived Procolophon trigoniceps.
It is known from the holotype MNHN-SAL 1024, skull missing the apex of the rostrum and the paratype MNHN-SAL 3, second skull missing the apex of the rostrum, recovered from the Salla, Department of La Paz, Bolivia.
The holotype specimen UMNH VP 20200 was recovered in the UMNH VP 1501 locality of the Wahweap Formation at Grand Staircase-Escalante National Monument (GSENM), in Kane County, southern Utah.
Nanocetorhinus was described by Underwood and Schlogl in 2011, from 28 partial and complete fossil teeth (holotype: Z 27485) discovered at Cerová-Lieskové, Vienna Basin, in Slovakia.
The holotype specimen, MOR 294, was found in a layer of the Two Medicine Formation, dating from the Campanian stage, about 75 million years ago.
Oxalaia is known from the holotype MN 6117-V, fused premaxillae of a very large individual and from the referred fragment MN 6119-V, an isolated and incomplete left maxilla, which were found on Cajual Island, Maranhão of northeastern Brazil.
The holotype amber specimen, number Tad-277, is currently housed in the fossil collection of the Birbal Sahni Institute of Palaeobotany in Lucknow, India and the second known adult, Tad-96 is in the collections of the American Museum of Natural History.
Pelagosaurus was originally described from a specimen from Normandy, but the holotype for P. typus was discovered north of the town of Ilminster in Somerset, England.
It was renamed Ponerosteus exogyrarum (species name amended) by George Olshevsky in 2000; however, the taxon is considered a nomen dubium by most, as the type material is extremely poor, being apparently an internal cast of a tibia from an animal that may or may not be a dinosaur.
Pristomyrmex rasnitsyni is known from a solitary fossil, the holotype, specimen number 1.ii.1969, which is currently in the collections of the University of Copenhagen.
The holotype and only known specimen, BMNH R3718, consists of a single left hand bone, discovered around 1905 near Wollaston, on the Lightning Ridge.
The species was first described by J. Hardenberg in 1941 in a synopsis of the Fishes of New Guinea based on the holotype specimen which was collected from Merauke on the southern coast of New Guinea.
In 2006 Robert Sullivan named and described a second species, Saurornitholestes robustus, based on holotype SMP VP-1955, a left frontal.
The species was first scientifically described by the famed French naturalist Georges Cuvier in 1833 based on a specimen taken from the mouth of the Senegal River at Gorée, Senegal, which was designated to be the holotype.
The species is known from only two specimens; the holotype collected by Roland McKay in 1985 from a Taipei market, both specimens of which were taken from the waters of Taiwan.
The holotype of this species had been found north-eastern Madagascar 50 km west of Andapa at altitude of 1600m.
It is known from the holotype BP/1/4585, a skull.
Undulopsychopsis alexi is known only from one fossil, the part and counterpart holotype, specimen number CYNB044, which is housed in the collections of the Chaoyang Bird Fossil National Geopark Chaoyang, Liaoning, China.
The holotype, BMNH R2559 (incorrectly given by Owen as BMNH R2556), was found near Cuckfield in layers of the Tunbridge Wells Sand Formation dating from the late Valanginian.
Yangchuanosaurus zigongensis is known from four specimens including ZDM 9011 (holotype), a partial postcranial skeleton; ZDM 9012, a left maxilla; ZDM 9013, two teeth and ZDM 9014, a right hind limb.
The generic name is derived from the name of the historical Yongjing County, near where the holotype of Yongjinglong and numerous dinosaur track fossils were collected, and from long, meaning "dragon" in Chinese.