Many Equus fossils from the Pliocene have been collected from the Hagerman horse quarries in Idaho. Equus conversid'ens Owen Equus conversidens Owen, … By 15,000 years ago, the members of this genus had spread through North America, Europe, and Asia. Domestication of these animals most likely began in Asia about 6000 years ago. Gidley J. W. (1901) Tooth Characters and Revision of the North American Species of the Genus Equus, Bulletin of the American Museum of Natural History 14 9, 1-60 Hay O. P. (1902) , Bibliography and Catalogue of the Fossil Vertebrata of North America. Evolutionary Monographs 2:1 … It was one of the oldest horses of the genus Equus and was discovered in 1928 in Hagerman, Idaho. Since the early work of Gidley, many other studies on fossil horses have been made and the consensus is that the horse at Hagerman does belong in the modern genus Equus and that it is the same as the extinct species from Texas, simplicidens. Species of Equus lived from 5 million years ago until the present. It is difficult, but not impossible, to determine relative ages of land mammal sites compared to those with marine fossils. Equus is a genus of mammals in the family Equidae, which includes horses, donkeys, and zebras.Within Equidae, Equus is the only recognized extant genus, comprising seven living species. Interest in the origin and evolution of Equus dates back to over a century, but there is still no consensus on the definition of the genus or its phylogenetic position. Idaho also recognizes an official state horse. Like Equidae more broadly, Equus has numerous extinct species known only from fossils.The genus most likely originated in North America and spread quickly to the Old World. So today most paleontologists refer to the Hagerman Horse by the scientific name of Equus simplicidens. Equus, the genus of modern-day horses, first came into existence 5 million years ago (based on fossil evidence). Für andere Verwendungen finden Equus.. Equus Basilosaurus, extinct genus of primitive whales of the family Basilosauridae (suborder Archaeoceti) found in Middle and Late Eocene rocks in North America and northern Africa (the Eocene Epoch lasted from 55.8 million to 33.9 million years ago). The genus Equus originated in North America and was derived from the late Hemphillian (late Miocene to earliest Pliocene) Dinohippus (Quinn, 1955). The tooth pattern in Merychippus is basically the same as that in the modern horse; the teeth The Hagerman horse (Equus simplicidens) is the oldest known representative of the modern horse genus Equus (which includes horses, donkeys, and zebras) and is believed to be more closely related to the living Grevy's zebra in Africa than our modern horse. Among the artiodactyls, the most common is the living species of white-tailed deer, ... Fossil history of the rodent genus Sigmodon. At various places in the world, marine fossils will cover or mix with fossil land mammals or vice versa. A review of the fossil horses of the genus Equus from the central Balkans, a mountainous area com-prising Serbia and Montenegro, is presented in this paper. Gidley J. W. (1901) Tooth Characters and Revision of the North American Species of the Genus Equus, Bulletin of the American Museum of Natural History 14 9, 1-60 Hay O. P. (1902) , Bibliography and Catalogue of the Fossil Vertebrata of North America. A genus (plural genera) is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology.In the hierarchy of biological classification, genus comes above species and below family.In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. The other species have been split off into different genera. The term equine refers to any member of this genus, including horses. Equus is a genus of mammals in the family Equidae, which includes horses, donkeys, and zebras. Bulletin of the American Museum of Natural History 14(9):1-60. Abstract. 1901. A second, smaller species of Equus is also present at Haile 15A, but not enough material is present to make a secure identification. Like Equidae more broadly, Equus has numerous extinct species known only from fossils.The genus most likely originated in North America and spread quickly to the Old World. The Hagerman horse (Equus simplicidens), also called the Hagerman zebra or the American zebra, was a North American species of equid from the Pliocene epoch and the Pleistocene epoch. Belongs to Equus according to J. W. Gidley 1901 Aus Wikipedia, der freien Enzyklopädie. Within Equidae, Equus is the only recognized extant genus, comprising seven living species. 7 A number of its characteristics were put forward to support the allocation of this fossil to Homo. These early Equidae were fox-sized animals with three toes on the hind feet, and four on the front feet. Like Equidae more broadly, Equus has numerous extinct species known only from fossils. Merychippus, extinct genus of early horses, found as fossils in deposits from the Middle and Late Miocene Epoch (16.4 to 5.3 million years ago).