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Antilocapridae
Fossil range: Early Miocene to Recent
Pronghorns in Fort Keogh, Montana
Pronghorns in Fort Keogh, Montana
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Subclass: Theria
Infraclass: Eutheria
Order: Artiodactyla
Family: Antilocapridae
Owen, 1841
Genus

See text. The Miocene is a geological epoch of the Neogene period and extends from about 23 Montana ( is a state in the Western United States. One-third of the state in the western part contains numerous mountain ranges (approximately 77 named of the northern Chordates ( Phylum Chordata) are a group of Animals that includes the Vertebrates together with several closely related Invertebrates Mammals ( class Mammalia) are a class of Vertebrate Animals characterized by the presence of Sweat glands, including sweat glands Theria (ˈθɪərɪə from the Greek θηρίον, wild beast is a subclass of Mammals ref> that give birth to live young without See also Evolution of mammals Eutheria ("true beast" are a group of Mammals consisting of Placental mammals plus all extinct Mammals The even-toed ungulates form the Mammal order Artiodactyla. They are Ungulates whose weight is borne (if they have more than two toes about A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic

Antilocapridae is a family of artiodactyls endemic to North America. The even-toed ungulates form the Mammal order Artiodactyla. They are Ungulates whose weight is borne (if they have more than two toes about Their closest extant relatives are the giraffids. Extant is a term commonly used to refer to Taxa (such as Species, genera or families) that are still in existence (living The giraffids are Ruminant Artiodactyl mammals that share a common ancestor with Deer and Bovids The biological family Giraffidae Only one species, the pronghorn (Antilocapra americana), is living today; all other members of the family are extinct. The pronghorn ( Antilocapra americana) also pronghorn antelope or prong buck, is a species of Ungulate Mammal native to interior In Biology and Ecology, extinction is the cessation of existence of a Species or group of taxa. The living pronghorn is a small ruminant mammal resembling an antelope. Physiologically a ruminant is a Mammal of the order Artiodactyla that digests plant-based food by initially softening it within the animal's first stomach known It bears small, forked horns.

In most respects, antilocaprids resemble other ruminants. They have a complex, four-chambered stomach for digesting tough plant matter, cloven hooves, and a similar body shape to antelopes. Their horns resemble those of the bovids, in that they have a true horny sheath, but, uniquely, they are shed outside the breeding season, and subsequently regrown. A bovid is any of almost 140 species of Cloven-hoofed Mammals belonging to the family Bovidae. Their lateral toes are even further diminished than in bovids, with the digits themselves being entirely lost, and only the cannon bones remaining. The equine forelimb is the front or thoracic limb of the Horse. Antilocaprids have the same dental formula as most other ruminants:

0. Dentition is the development of Teeth and their arrangement in the Mouth. 0. 3. 3
3. 1. 3. 3

The antilocaprids evolved in North America, where they filled a niche similar to that of the bovids that evolved in the Old World. During the Miocene and Pliocene, they were a diverse and successful group, with many different species. The Miocene is a geological epoch of the Neogene period and extends from about 23 The Pliocene epoch (spelled Pleiocene in some older texts is the period in the Geologic timescale that extends Some had horns with bizarre shapes, or had four, or even six, horns. [1][2]

Species

References

  1. ^ Savage, RJG, & Long, MR (1986). In Biological classification, family ( Latin Merycondontinae is a Subfamily of Pronghorn antelope that arose during the middle of the Miocene and became extinct by the end of that period A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic Cosoryx furcatus is an extinct species of pronghorn that lived in the Miocene of Nevada. In Biology, a tribe &mdashor infrafamily&mdashis a Taxonomic rank between family and Genus. Osbornoceros was a prehistoric antilocaprid Genus belonging to the family Antilocapridae, of which all its species are extinct except Osbornoceros was a prehistoric antilocaprid Genus belonging to the family Antilocapridae, of which all its species are extinct except Ilingoceros is an extinct genus of Artiodactyl from the Miocene of North America. Ilingoceros is an extinct genus of Artiodactyl from the Miocene of North America. Capromeryx minor is a very small extinct species of Pronghorn -like antilocaprid ungulate discovered in the La Brea Tar Pits of California Capromeryx minor is a very small extinct species of Pronghorn -like antilocaprid ungulate discovered in the La Brea Tar Pits of California Hayoceros is an extinct pronghorn from Nebraska. It was 180 (6 ft long and had four horns arranged in two pairs Hexameryx is an Extinct Genus of antilocaprid Artiodactyl with six horns, from the Pliocene of the The pronghorn ( Antilocapra americana) also pronghorn antelope or prong buck, is a species of Ungulate Mammal native to interior The pronghorn ( Antilocapra americana) also pronghorn antelope or prong buck, is a species of Ungulate Mammal native to interior The Sonoran Pronghorn ( Antilocapra americana sonoriensis) is an Endangered. The Sonoran Pronghorn ( Antilocapra americana sonoriensis) is an Endangered. Mammal Evolution: an illustrated guide. New York: Facts on File, 232-233. ISBN 0-8160-1194-X.  
  2. ^ (1999) in Palmer, D. : The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions, 280. ISBN 1-84028-152-9.  
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