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Iron Canyon Site
The Iron Canyon Site is a Miocene assemblage of vertebrate fossils located in Kern County, California within the Dove Spring Formation The Dove Spring Formation (formerly the Ricardo Formation) is a Formation (geology), geologic formation in the western Mojave Desert of California. It preserves fossils dating back to the Miocene epoch of the Neogene Period (geology), period. Fos ... dating from ~23.03—5.33 Ma. Specimens located Proboscidea (Gomphotheriidae) *Gomphotherium Rhinocerotidae *Peraceras *Serbelodon ''S. burnhami'' Equidae *Dinohippus *Pliohippus ''P. tantalus'' *Megahippus ''M. matthewi'' Amphicyonidae *Ischyrocyon ''I. mohavensis'' Canidae *Epicyon E. saevus Artiodactyla *Alluvisorex ''A. chasseae'' *Paracosoryx ''P. furlongi'' *Merychyus Lipotyphla *Limnoecus *Erinaceidae Lagomorpha *Hesperolagomys Rodentia *Thomomys *Cupidinimus ''C. avawatzensis, C. tertius'' *Perognathus P. minutus *Geomyidae *Eucastor *Copemys ''C. dentalis, C. longidens, C. russelli'' Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paracosoryx
''Paracosoryx'' is an extinct genus of antilocaprid that lived in North America during the Miocene. Taxonomy It was originally described as a subgenus of ''Cosoryx'', but was elevated to full genus status. It has been suggest that ''Paracosoryx'' is paraphyletic, with some species more related to members of other genera than each other. Description The burr of ''Paracoryx'' is located relatively high on the shaft compared to other members of Merycodontinae Merycondontinae is a subfamily of pronghorn that arose during the middle of the Miocene and became extinct by the end of that period. The Merycondontinae were small, slightly built, fast-running ungulates. Both males and females were horned. .... The horn shaft is relatively long, with small, curved tines. References {{Reflist Prehistoric even-toed ungulate genera Prehistoric pronghorns Miocene even-toed ungulates Miocene mammals of North America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene Paleontological Sites Of North America
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene California
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucastor
''Eucastor'' is an extinct genus (biology), genus of beaver-grouped rodents. Based on the available evidence of the Foramen, foramina, ''Eucastor'' most likely is closely related to Beaver, ''Castor'', but not in its direct lineage. References * McKenna, Malcolm C., and Bell, Susan K. 1997. ''Classification of Mammals Above the Species Level''. Columbia University Press, New York, 631 pp. Prehistoric beavers Prehistoric rodent genera Taxa named by Joseph Leidy {{paleo-rodent-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perognathus
''Perognathus'' is a genus of pocket mouse. Like other members of their family they are more closely related to pocket gophers than to true mice. Characteristics The silky pocket mice are small animals with soft pelage, long tails, and small feet compared to other heteromyids. They have long claws which are used for digging burrows and sifting sandy substrates for seeds. They have also been found to steal seeds from kangaroo rats' dens. They store these seeds in large hairy external cheek pouches. They are nocturnal and are found in arid habitats. They are not true hibernators, but will go into torpor and stay in their burrows for extended periods of time. Species *'' Perognathus alticola'' — White-eared pocket mouse *'' Perognathus amplus'' — Arizona pocket mouse *'' Perognathus fasciatus'' — Olive-backed pocket mouse *''Perognathus flavescens'' — Plains pocket mouse *'' Perognathus flavus'' — Silky pocket mouse *'' Perognathus inornatus'' — San Joaquin pocke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erinaceidae
Erinaceidae is a family in the order Eulipotyphla, consisting of the hedgehogs and moonrats. Until recently, it was assigned to the order Erinaceomorpha, which has been subsumed with the paraphyletic Soricomorpha into Eulipotyphla. Eulipotyphla has been shown to be monophyletic; Soricomorpha is paraphyletic because Soricidae shared a more recent common ancestor with Erinaceidae than with other soricomorphs. Erinaceidae contains the well-known hedgehogs (subfamily Erinaceinae) of Eurasia and Africa and the gymnures or moonrats (subfamily Galericinae) of South-east Asia. This family was once considered part of the order Insectivora, but that polyphyletic order is now considered defunct. Characteristics Erinaceids are generally shrew-like in form, with long snouts and short tails. They are, however, much larger than shrews, ranging from in body length and in weight, in the case of the short-tailed gymnure, up to and in the moonrat. All but one species have five toes in eac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
