Fossil taxa described in 2000

Microraptor (Greek, μικρός, mīkros: "small"; Latin, raptor: "one who seizes") is a genus of small, four-winged dromaeosaurid dinosaurs. Numerous well-preserved fossil specimens have been recovered from Liaoning, China. They date from the early Cretaceous Jiufotang Formation (Aptian stage), 125 to 120 million years ago. Three species have been named (M. zhaoianus, M. gui, and M. hanqingi), though further study has suggested that all of them represent variation in a single species, which is properly called M. zhaoianus. Cryptovolans, initially described as another four-winged dinosaur, is u

Sauroposeidon ( ; meaning "lizard earthquake god", after the Greek god Poseidon) is a genus of sauropod dinosaur known from several incomplete specimens including a bone bed and fossilized trackways that have been found in the U.S. states of Oklahoma, Wyoming, and Texas.

Bambiraptor is a genus of bird-like dromaeosaurid theropod dinosaur that lived during the Late Cretaceous (about 72 million years ago) of Montana. It was described by scientists at the University of Kansas, Yale University, and the University of New Orleans. The holotype fossil is less than long, although this specimen appears to be a juvenile, and it is possible that Bambiraptor is a juvenile Saurornitholestes. It is even suspected that the type specimen is a chimera, based on the fact that "there are elements of three different similarly sized lower legs included in the holotype." Because of

Pyroraptor (meaning "fire thief") is an extinct genus of paravian dinosaur, probably a dromaeosaurid or unenlagiid, from the Late Cretaceous Ibero-Armorican island, of what is now southern France. It lived during the late Campanian and early Maastrichtian stages, approximately 72 million years ago. It is known from a single partial specimen that was found in Provence in 1992, after a forest fire. The animal was named Pyroraptor olympius by Allain and Taquet in 2000.

Repenomamus (Latin: "reptile" (reptilis), "mammal" (mammalis)) is a genus of opossum- to badger-sized gobiconodontid mammal containing two species, Repenomamus robustus and Repenomamus giganticus. Both species are known from fossils found in China that date to the early Cretaceous period, about 125-123.2 million years ago. R. robustus is one of several Mesozoic mammals for which there is good evidence that it fed on vertebrates, including dinosaurs. Though it is not entirely clear whether these animals primarily hunted live dinosaurs or scavenged dead ones, evidence for the former is present i

Charonosaurus ( ; meaning "Charon's lizard") is a genus of lambeosaurine hadrosaurid dinosaur similar to Parasaurolophus that lived in the latest Cretaceous Yuliangze Formation of China. Its fossils were described by Godefroit, Zan, and Jin in 2000, on the south bank of the Amur River, dividing China from Russia. It is monotypic, consisting of the species, C. jiayinensis.

Fukuiraptor ("thief of Fukui") is a genus of medium-sized megaraptoran theropod dinosaur of the Early Cretaceous epoch (either Barremian or Aptian) that lived in what is now Japan. Fukuiraptor is known from the Kitadani Formation and possibly also the Sebayashi Formation. Fukuiraptor may have been one of the basalmost members of Megaraptora, or a sister taxon to Australovenator.

Byronosaurus is a genus of troodontid dinosaur from the Late Cretaceous Period of Mongolia.

Jeholosaurus is a genus of small neornithischian dinosaur from the Early Cretaceous-aged Yixian Formation of what is now China.

Graciliceratops (meaning "slender horned face") is a genus of neoceratopsian dinosaurs that lived in Asia during the Late Cretaceous period.

Isanosaurus ("North-eastern Thailand lizard") is an extinct genus of sauropod dinosaur from Thailand. It was originally dated to approximately 219-199  million years ago during the Late Triassic (late Norian to Rhaetian stages), which would make it one of the oldest known sauropods. Its age was later considered uncertain, and may be Early Jurassic or even as young as Late Jurassic. The only species is Isanosaurus attavipachi. Though important for the understanding of sauropod origin and early evolution, Isanosaurus is poorly known. Exact relationships to other early sauropods remain unres

Nqwebasaurus is a probable ornithomimosaurian theropod from the Early Cretaceous of South Africa. The genus contains a single species, Nqwebasaurus thwazi, representing the oldest known coelurosaur in Africa and the evidence for basal coelurosaurian dinosaurs inhabiting Gondwana since the earliest Cretaceous period.

Kutchicetus is an extinct genus of early whale of the family Remingtonocetidae that lived during Early-Middle Eocene (Lutetian and Ypresian) in what is now the coastal border of Pakistan and India (, paleocoordinates ). It is closely related to Andrewsiphius with which it was synonymized by . proposed a new clade, Andrewsiphiinae, for the two species. Later authors, however, still accept both as separate genera.

Nomingia is a genus of oviraptorosaurian theropod dinosaur known from the Late Cretaceous Bugin Tsav Beds of Mongolia.

Xenosmilus (from Ancient Greek ξένος (xénos), meaning "strange", and σμίλη (smílē), meaning "knife, chisel") is an extinct genus of homotherin machairodontine felid (saber-toothed cat) that roamed the North America from the Early Pleistocene. The type species of the genus, X. hodsonae, is known from Early Pleistocene deposits in Florida.

Huabeisaurus (, meaning "North China lizard") was a genus of sauropod dinosaur from the Late Cretaceous (Cenomanian to Maastrichtian stages, around 99.7–70.6 million years ago) of what is present-day northern China. The type species, Huabeisaurus allocotus, was first described by Pang Qiqing and Cheng Zhengwu in 2000. It is known from numerous remains found in the 1990s, which include teeth, partial limbs and vertebrae. Due to its relative completeness, Huabeisaurus represents a significant taxon for understanding sauropod evolution in Asia. Huabeisaurus comes from Kangdailiang and Houyu, Zhao

Nanyangosaurus is a genus of herbivorous ornithopod dinosaur belonging to the Hadrosauromorpha that lived in the Late Cretaceous of present-day Henan Province, China.

Chuanjiesaurus is a genus of sauropod dinosaurs from the middle Jurassic Period. They lived in what is now China. The type species, Chuanjiesaurus anaensis, was first described by Fang, Pang, Lü, Zhang, Pan, Wang, Li and Cheng in 2000. Fossils of the species were found in the village of Chuanjie, Lufeng County, Yunnan Province, (in Chuanjie Formation deposits) and are named after the location where the fossils were discovered. Holtz gave a length of 25 meters (82 ft). left|thumb|Size comparison thumb|Life restoration with a human for scale

Rocasaurus (meaning "General Roca lizard") is a genus of titanosaurian sauropod that lived in South America. Rocasaurus was discovered in Argentina in 2000, within the Allen Formation which is dated to be middle Campanian to early Maastrichtian in age (75 to 70 million years ago in the Late Cretaceous). This genus grew up to long, making it one of the smaller sauropods. It seems to be closely related to saltasaurid dinosaurs, like Saltasaurus and Neuquensaurus. The type species, Rocasaurus muniozi, was formally described by Leonardo Salgado and Azpilicueta in 2000.

Godinotia is an extinct genus of strepsirrhine (wet-nosed primate) from the Eocene of Germany. It belongs to the order Adapiformes, a widespread early primate group distantly related to modern lemurs. Godinotia fossils are found in Middle Eocene strata of Geiseltal. The genus contains a single species, Godinotia neglecta, which was previously regarded as a species of Pronycticebus or Caenopithecus.

Glyptodontopelta (meaning "Glyptodon shield") is a monospecific genus of nodosaurid dinosaur from New Mexico that lived during the Late Cretaceous (lower to upper Maastrichtian, 69 to 66 Ma) in what is now the Naashoibito member of the Ojo Alamo Formation. The type and only species, Glyptodontopelta mimus, is known from numerous specimens that consist of osteoderms, a dentary, supraorbital and bone fragments. It was named in 2000 by Tracy Ford. Edmontonia australis is a junior synonym of Glyptodontopelta.

Protopteryx is an extinct bird and possibly the basalmost enantiornithean, from the Cretaceous period. The type species is P. fengningensis. It was first discovered in the Sichakou Member of the Yixian Formation or Huajiying Formation of Hebei Province, northern China, dating from 131 Ma ago. Protopteryx has been found in the Daibeigou formation, as well. The name Protopteryx means "primitive feather": "proto-" meaning "the first of" and "-pteryx" meaning "feather" or "wing." The name comes from the fact that Protopteryx feathers are more primitive than those of modern birds, such as the two e

Tendaguria ( ; meaning "the Tendaguru one") is a genus of herbivorous sauropod dinosaur from the Late Jurassic of Lindi Region, Tanzania.

Aegirosaurus is an extinct genus of platypterygiine ophthalmosaurid ichthyosaurs known from the late Jurassic and early Cretaceous of Europe. It was originally named as a species of Ichthyosaurus.

Australobarbarus is a genus of dicynodont from Late Permian (Wuchiapingian) of Russia. thumb|left|Restoration of Australobarbarus platycephalus

species of waterbears (fossil)

Eudibamus is an extinct genus of bolosaurid reptile known from the Early Permian of the Free State of Thuringia in central Germany. It was a small reptile, only 25-26 cm in length. Like other bolosaurids, it was probably an agile herbivore, and it shows a long list of adaptations for bipedal (two-legged) movement. The hindlimbs had a parasagittal stance, with close-set and nearly vertical legs similar to dinosaurs and mammals. The tail and hindlimbs are very long, the forelimbs are slender, the digits are closely bundled together, and the ankle joint is hinge-like. Eudibamus is regarded a

Escavadodon ("tooth from Escavada") is an extinct genus of pangolin-like myrmecophagous placental mammals of extinct monotypic family Escavadodontidae within extinct order Palaeanodonta, that lived in North America during the middle Paleocene. It contains a single species, Escavadodon zygus, recovered from the Nacimiento Formation of New Mexico.

Bangiomorpha pubescens is a species of red algae in the order Bangiales. It is the first known sexually reproducing organism. A multicellular fossil of Bangiomorpha pubescens was recovered from the Hunting Formation in Somerset Island, Canada that strongly resembles the modern red alga Bangia despite occurring in rocks dating to , during the Stenian period. This species is the oldest example of an organism belonging to an extant phylum. The fossil includes differentiated reproductive cells that are the oldest evidence of sexual reproduction. Sexual reproduction increased genetic variation, whi

Attockicetus is an extinct genus of remingtonocetid early whale known from the Middle Eocene (Lutetian) Kuldana Formation in the Kala Chitta Hills, in the Attock District of Punjab, Pakistan.

Namacalathus is a problematic metazoan fossil occurring in the latest Ediacaran. The first, and only described species, N. hermanastes, was first described in 2000 from the Nama Group of central and southern Namibia.

Yarala is a genus of fossil mammals that resemble contemporary bandicoots. The superfamily Yaraloidea and family Yaralidae were created following the discovery of the type species Yarala burchfieldi in 1995, on the basis that it lacks synapomorphies that unite all other peramelemorphian taxa.

Ponerosteus is a dubious genus of extinct archosauromorph from the Late Cretaceous (Cenomanian-aged) Korycanar Formation of the Czech Republic that was initially identified as a species of the dinosaur Iguanodon.

Broomistega is an extinct genus of temnospondyl in the family Rhinesuchidae. It is known from one species, Broomistega putterilli, which was renamed in 2000 from Lydekkerina putterilli Broom 1930. Fossils are known from the Early Triassic Lystrosaurus Assemblage Zone of the Beaufort Group in the Karoo Basin of present-day South Africa, a region that had been an enclave of Gondwana. Specimens of B. putterilli were once thought to represent young individuals of another larger rhinesuchid such as Uranocentrodon, but the species is now regarded as a paedomorphic taxon, possessing the features of j

species of bird

species of bird

Guanlingsaurus is an extinct genus of shastasaurid ichthyosaur from the Late Triassic of China. It grew up to in length and has a wide, triangular skull with a short and toothless snout.

Menadon is an extinct genus of traversodontid cynodonts. The type and only species is Menadon besairiei.

Horodyskia is a fossilised organism found in rocks dated from to . Its shape has been described as a "string of beads" connected by a very fine thread. It is considered one of the oldest known eukaryotes.

Nikkasaurus is an extinct genus of therapsids first named and described by Ivakhnenko.

Ziphosuchia is a clade of mesoeucrocodylian crocodyliforms that includes notosuchians and sebecosuchians.

Densignathus is an extinct genus of early stem-tetrapod from the Late Devonian-aged Catskill Formation of Pennsylvania in the United States. A lower jaw has been found from the Red Hill fossil site, which is known for a diversity of lobe-finned fishes and other early tetrapods like Hynerpeton. The type species, Densignathus rowei, was named in honor of paleontologist Norman Douglas Rowe in 2000.

Haasiophis, consisting of the sole species Haasiophis terrasanctus, is an extinct genus of snakes with hind limbs. It is one of three genera of Cenomanian snakes known to have possessed hindlimbs.

Scalopodontes is an extinct genus of therocephalian which existed in Russia during the Late Permian period. The type species is Scalopodontes kotelnichi. Fossils have been found in the Sokolki Assemblage Zone of the Urpalov Formation.

Nanolania is an extinct genus of rhytidosteid temnospondyl from the early Triassic period (Induan stage) of south central Queensland, Australia. It is known from the holotype QMF 12293, a postorbital fragment associated with lower jaw fragments and from the associated paratypes QMF 14480, a laterally complete skull with mandibles, QMF 35247, a poorly preserved skull with right mandibular ramus, QMF 35393, a badly preserved partial skull and QMF 39666, a posterior orbital and mandibular fragment, recovered from the Arcadia Formation in the Rewan Group. This genus was named by Adam M. Yates in 2

genus of amphibians (fossil)

Charruodon is an extinct genus of cynodonts which existed in the Hyperodapedon Assemblage Zone of the Santa Maria Formation in the Paraná Basin in southeastern Brazil during the Late Triassic. The genus contains only the type species Charruodon tetracuspidatus, which is known from a single specimen of uncertain provenance. Upon its first description, Charruodon was tentatively placed within the family Therioherpetidae, but a 2017 study by Agustín G. Martinelli and colleagues instead recovered it as a more basal member of Probainognathia. In 2023, Hoffmann, Ribeiro & de Andrade reinterpreted th

Oligochlora is an extinct genus of sweat bee in the Halictidae subfamily Halictinae. The genus currently contains six species, all of which are known from the early Miocene Burdigalian stage Dominican amber deposits on the island of Hispaniola.

Dadadon is an extinct genus of traversodontid cynodonts which existed in Madagascar during the late Middle Triassic. The only species in the genus is Dadadon isaloi.

species of bird (fossil)

Prionomyrmex is an extinct genus of bulldog ants in the subfamily Myrmeciinae of the family Formicidae. It was first described by Gustav Mayr in 1868, after he collected a holotype worker of P. longiceps in Baltic amber. Three species are currently described, characterised by their long mandibles, slender bodies and large size. These ants are known from the Eocene and Late Oligocene, with fossil specimens only found around Europe. It is suggested that these ants preferred to live in jungles, with one species assumed to be an arboreal nesting species. These ants had a powerful stinger that was

species of insect (fossil)

species of mammal (fossil)

Offacolus is an extinct genus of euchelicerate, a group of chelicerate arthropods. Its only species, O. kingi, has been found in deposits from the Silurian period (Homerian epoch) in the Wenlock Series Lagerstätte of Herefordshire, England. The genus is named after Offa, a king from the ancient kingdom of Mercia, and colus, a person who dwelled among (this time referring to) the Offa's Dyke. The species name honors Robert Joseph King, a British mineralogist who found the fossils of Offacolus.

Jeholotriton is a genus of primitive salamander from the Daohugou Beds (possibly dating to the late Jurassic period) near Daohugou village of Inner Mongolia, China. left|thumb|Paratype (IVPP V11984), Paleozoological Museum of China Wang Yuan from the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences first described the species in 2000. In 2005, he presented a full description in the Journal of Vertebrate Paleontology along with C. S. Rose from James Madison University, United States.

Sorbinichthys is a genus of extinct ray-finned fish from the Cenomanian of Lebanon and Morocco. It is classified within the order Ellimmichthyiformes. Both species within the genus are small (15 cm) and, like other members of their order, have deep bodies. The most notable feature of the genus is the presence of extremely long 2nd fin rays on the dorsal and pectoral fins that are much longer than the other rays on the respective fins. Sorbinichthys is one of the most basal members of the order and, in some analyes, the sister group of the rest of the order. The fish lived in shallow coast

species of bird (fossil)

Megavitiornis altirostris is an extinct, flightless, giant stem-galliform bird that was endemic to Fiji, it is the only known species in the genus Megavitiornis. Originally thought to be a megapode, more recent morphological studies indicate a close relationship with Sylviornis of New Caledonia, with both genera belonging to the family Sylviornithidae outside of the Galliformes crown group. It is likely that it became extinct through overhunting shortly after the colonisation of the Fiji Islands by humans.

thumb|left|Life restoration Suchogorgon is an extinct genus of gorgonopsids from the Late Permian of Russia. It was a medium-sized animal with a low, narrow skull. Its skull is dotted with small pits, which might have housed sensory organs in life. Its canines were large and flat, as in most gorgonopsids.

Chlynovia is an extinct genus of therocephalian therapsids from the Late Permian of Russia. The type species is C. serridentatus, named in 2000. Chlynovia was originally classified within Scaloposauria, a group of therocephalians characterized by their small size and lightly built skulls. Scaloposaurians are no longer recognized as a true grouping, but instead represent the juvenile forms of many types of therocephalians. Chlynovia was placed in the family Perplexisauridae along with Perplexisaurus, but both therocephalians are now placed in the family Ictidosuchidae.