Топ-100 ★ Free online encyclopedia. Did you know? page 221

★ Free online encyclopedia. Did you know? page 221



                                               

Mammutidae

Mammutidae is an extinct family of proboscideans that appeared during the Miocene epoch and survived until the start of the Holocene. The family was first described in 1922, classifying fossil specimens of the type genus Mammut, and has since bee ...

                                               

Metailurini

Metailurini is an extinct taxonomic tribe of large saber-toothed cats that lived in Africa, Asia, Europe, and North America from the Miocene to the Pleistocene. The most famous Metalurini of the genus Dinofelis and Metailurus. Metailurini was fan ...

                                               

Percrocutidae

Percrocutidae is an extinct family of hyena-like feliform carnivores endemic to Asia, Africa, and Southern Europe from the Miocene through the Pliocene, existing for about 17.41 million years. First percrocutids known from the middle Miocene of E ...

                                               

Picus peregrinabundus

Picus peregrinabundus is a species of woodpecker from the late Miocene first described by Soviet scientist Umanskaja in 1981. It lived in what is now Ukraine. The species relationships have been called into question and need to be rechecked. The ...

                                               

Anoplotheriidae

Anoplotheriidae is an extinct family of even-toed ungulates. They were endemic to Western Europe during the Eocene and Oligocene epochs about 48 - 23 million years ago, existing for about 25 million years. They disappeared at the end of the Oligo ...

                                               

Anthracotheriidae

Anthracotheriidae is a family of extinct, hippopotamus-like artiodactyl ungulates related to hippopotamuses and whales. The oldest genus, Elomeryx, first appeared during the middle Eocene in Asia. They thrived in Africa and Eurasia, with a few sp ...

                                               

Arsinoitheriidae

Arsinoitheriidae is a family of hoofed mammals belonging to the extinct order Embrithopoda. Remains have been found in the Middle East, Africa, Asia and Romania. When alive, they would have borne a strong but superficial resemblance to modern rhi ...

                                               

Dichobunidae

Dichobunidae is an extinct family of basal artiodactyl mammals from the early Eocene to late Oligocene of North America, Europe, and Asia. The Dichobunidae include some of the earliest known artiodactyls, such as Diacodexis.

                                               

Homacodontidae

They were small animals, averaging about the size of a modern rabbit, had many primitive features. In life, they would have resembled a long-tailed muntjac or chevrotain. Dichobunids had four or five toes on each foot, with each toe ending in a s ...

                                               

Leptochoeridae

Leptochoeridae was considered a subfamily of Dichobunidae by McKenna and Bell 1997. However, Theodor et al. 2007 treat leptochoerids as a distinct family.

                                               

Oligopithecidae

Oligopithecidae is an extinct basal Catarrhine family from the late Eocene of Egypt as sister of the rest of the Catarrhines. Its members were probably insectivorous due to their simple molars and cusp arrangement.

                                               

Proborhyaenidae

Proborhyaenidae is an extinct family of metatherian mammals of the order Sparassodonta, which lived in South America from the Eocene until the Oligocene. Sometimes it has been included as a subfamily of their relatives, the borhyaenids. Body mass ...

                                               

Hanleya

Hanleya is a genus of polyplacophoran molluscs known from Oligocene and Miocene fossils, it is represented today by a number of species including H. sinica Xu 1990, H. brachyplax and H. hanleyi Bean in Thorpe, 1844, which feeds on sponges.

                                               

Mammacyon

Mammacyon is an extinct genus of medium-sized bear dogs endemic to North America during the Late Oligocene and Early Miocene. It lived from 26.3 - 20.4 Ma, existing for approximately 6 million years.

                                               

Merycochoerus

Merycochoerus is an extinct genus of oreodont of the family Merycoidodontidae, endemic to North America. They lived during the Early Oligocene 33.9 - 30.8 mya, existing for approximately 3 million years. Fossils are widespread through the western ...

                                               

Paroreodon

Paroreodon is an extinct genus of oreodont of the family Merycoidodontidae, subfamily Merycoidodontinae, endemic to North America during the Oligocene-Miocene subepochs, existing for approximately 10.2 million years.

                                               

Rhyssoplax

Rhyssoplax is a genus of chitons in the family Chitonidae, endemic to Australia, New Zealand, New Caledonia, Norfolk Island, and the Kermadec Islands.

                                               

Stenomylus

Stenomylus is an extinct genus of miniature camelid native to North America that died out around 30 million years ago. Its name is derived from the Greek στένος, "narrow" and μύλος, "molar." Stenomylus was extremely diminutive compared to other a ...

                                               

Aturia

Aturia is an extinct genus of Paleocene to Miocene nautilids within Aturiidae, a monotypic family, established by Campman in 1857 for Aturia Bronn, 1838, and is included in the superfamily Nautilaceae in Kummel 1964. Aturia is characterized by sm ...

                                               

Carpolestidae

Carpolestidae is a family of primate-like Plesiadapiformes that were prevalent in North America and Asia from the mid Paleocene through the early Eocene. Typically, they are characterized by two large upper posterior premolars and one large lower ...

                                               

Chiromyoides

Chiromyoides is a small plesiadapid primatomorph that is known for its unusually robust upper and lower incisors, deep dentary, and comparatively small cheek teeth. Species of Chiromyoides are known from the middle Tiffanian through late Clarkfor ...

                                               

Crommium

Species within the genus Crommium include: † Crommium intermedia Deshayes, 1832. † Crommium pseudowillemeti Eames, 1952. † Crommium ferrugineum Great. † Crommium rouaulti dArchiac and Haime, 1854. † Crommium palmerae Clark and Durham, 1946. † Cro ...

                                               

Diplocynodon

Diplocynodon is an extinct genus of alligatoroid that lived during the Paleocene to middle Miocene in Europe. It looked very similar to the modern caiman in that it was small and had bony armour scutes covering its neck, back, belly, and tail. Th ...

                                               

Fabiania (foram)

Fabiania is a genus of large fossil benthic calcareous forams with a range extending from the Upper Paleocene to the Upper Eocene. A test that is up to 4 mm in diameter, in the form of a more or less flattened cone with a hollow centre and a blun ...

                                               

Lepidopleurus

Lepidopleurus pergranatus. Lepidopleurus inquinatus Reeve, 1847. Lepidopleurus finlayi Ashby, 1929. Lepidopleurus otagoensis Iredale & Hull, 1929. Lepidopleurus cajetanus Poli, 1791. Lepidopleurus fairchildi Iredale & Hull, 1929.

                                               

Mesonychid

Mesonychia is an extinct taxon of small- to large-sized carnivorous ungulates related to the cetartiodactyls. Mesonychids first appeared in the early Paleocene, went into a sharp decline at the end of the Eocene, and died out entirely when the la ...

                                               

Mesonychidae

Mesonychidae is an extinct family of small to large-sized omnivorous-carnivorous mammals closely related to cetartiodactyls which were endemic to North America and Eurasia during the Early Paleocene to the Early Oligocene.

                                               

Plesiadapidae

Plesiadapidae is a family of plesiadapiform mammals related to primates known from the Paleocene and Eocene of North America, Europe, and Asia. Plesiadapids were abundant in the late Paleocene, and their fossils are often used to establish the ag ...

                                               

Prolimnocyon

Prolimnocyon is an extinct genus of hyaenodontid mammals. Known from the Paleocene to the Eocene of Asia and North America, it is the earliest known member of the hyaenodontid subfamily Limnocyoninae.

                                               

Priscacara

Priscacara is an extinct genus of perch from the middle Eocene. It is characterized by a sunfish-like body and its stout dorsal and anal spines. The fish is best known from the Green River Shales of Wyoming, Utah and Colorado. Mass deaths of Pris ...

                                               

Hypsiops

Hypsiops is an extinct genus of oreodont of the family Merycoidodontidae endemic to North America. They lived during the Late Oligocene to Early Miocene epochs, 20.4 - 16.0 mya, existing for approximately 4 million years. Fossils have been uncove ...

                                               

Migmacastor

Migmacastor is an extinct member of the beaver family, Castoridae, known from a single species, Migmacastor procumbodens. Only a single specimen has been reported, a skull from the late Oligocene or early Miocene of Nebraska. Features of the inci ...

                                               

Paradaphoenus

Paradaphoenus is a physically small bear dog, which inhabited North America from the Early Oligocene to the Middle Miocene, 33.3 - 15.97 Ma, existing for approximately 17 million years. Fossils have been found at Haystack, Oregon, Banner County, ...

                                               

Poebrodon

Poebrodon is an extinct genus of terrestrial herbivore in the family Camelidae, endemic to North America during the Lutetian Eocene 46.2 - 42.0 mya, existing for approximately 4.68 million years.

                                               

Priscocamelus

Priscocamelus is an extinct monospecific genus of camelid, endemic to North America. It lived during the Early Miocene 24.8 - 20.4 mya, existing for approximately 5 million years. Fossils have been found only at two sites in the Rio Grande valley ...

                                               

Pseudolabis

Pseudolabis is an extinct genus of camelid endemic to North America. It lived from the Oligocene to the Miocene 30.8 - 20.4 mya, existing for approximately 11 million years. Fossils have been found to only two sites in Wyoming and Nebraska.

                                               

Eumorphocorystes

Eumorphocorystes is a genus of crab belonging to the Raninidae subfamily Notopodinae. The genus lived in the late Cretaceous of Belgium. Rathbun referred specimens from the Pacific Northwest Oligocene to this genus.

                                               

Griesbachites

Griesbachites is a genus of Late Triassic ceratitids included in the Haloritidae, with widespread distribution from the Alps through the Himalaya and Timur to British Columbia. Shell Griesbachites involute, almost spherical to subdiscoidal, ribbe ...

                                               

Stenopopanoceras

Stenopopanoceras is a genus of involute, discoidal ceratitid ammonites from the Middle Triassic that has been found on Spitsbergen and in arctic Russia and British Columbia. Name Stenopopanoceras indicates that its shell is like a compressed, rel ...

                                               

Tetanopsyrus

Tetanopsyrus is a genus of Acanthodii. There are two species of this genus that lived through the lower Devonian, some 416 to 359 million years ago.

                                               

Cathayornis

Cathayornis is a genus of enantiornithean birds from the Jiufotang Formation of Liaoning, Peoples Republic of China. It is known definitively from only one species, Cathayornis yandica, one of the first Enantiornithes found in China. Several addi ...

                                               

Cuspirostrisornis

Cuspirostrisornis is a genus of enantiornithean bird. Only one species is known, Cuspirostrisornis houi, though some researchers believe this to be a synonym of the similar species Cathayornis yandica. It is known from one fossil found in the Jiu ...

                                               

Jinanichthys

Jinanichthys is an extinct genus of osteoglossiform which existed in China during the early Cretaceous period. Species include J. longicephalus and J. major.

                                               

Jixiangornis

Jixiangornis is a genus of primitive euavialans from the Early Cretaceous. Like later avialans, it had no teeth, but it also had a long tail, unlike modern birds. Since teeth were still present in some more advanced short-tailed avialans, Jixiang ...

                                               

Longipteryx

Longipteryx is a genus of prehistoric bird which lived during the Early Cretaceous. It contains a single species, Longipteryx chaoyangensis. Its remains have been recovered from the Jiufotang Formation at Chaoyang in Liaoning Province, China. Apa ...

                                               

Gurilynia

Gurilynia is a genus of enantiornithine birds. One species is known, G. nessovi. It lived during the Maastrichtian stage of the Late Cretaceous period, between 70 and 66 mya. Gurilynia is known from fragmentary fossils found at the Gurilyn Tsav l ...

                                               

Teviornis

Teviornis is a genus of extinct birds. One species has been described, T. gobiensis. It lived in the Maastrichtian stage at the end of the Late Cretaceous period, some 70 million years ago. It is known from fossils collected from the Nemegt Forma ...

                                               

Asaphiscus

A. wheeleri occurs in the Middle Cambrian of the United States.

                                               

Cincinnetina

Cincinnetina is an extinct genus of brachiopods which existed in what is now the United States during the Late Ordovician. It was described by Jisuo Jin in 2012, as a new genus for the Orthis species O. multisecta and O. meeki, each of which have ...

                                               

Coosia

Coosia is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived from 501 to 490 million years ago during the Dresbachian faunal stage of the late Cambrian Period.

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