Tylocephalonyx
Encyclopedia
Tylocephalonyx is an extinct dome-headed chalicothere
from the Miocene
in North America
.
It may have used its "dome" in the same way as the pachycephalosaurs. Tylocephalonyx is related to the modern horse
, rhino
, and tapir
.
Chalicothere
Chalicotheres were a group of herbivorous, odd-toed ungulate mammals spread throughout North America, Europe, Asia, and Africa during the Early Eocene to Early Pleistocene subepochs living from 55.8 mya—781,000 years ago, existing for approximately .They evolved around 40 million years ago from...
from the Miocene
Miocene
The Miocene is a geological epoch of the Neogene Period and extends from about . The Miocene was named by Sir Charles Lyell. Its name comes from the Greek words and and means "less recent" because it has 18% fewer modern sea invertebrates than the Pliocene. The Miocene follows the Oligocene...
in North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
.
It may have used its "dome" in the same way as the pachycephalosaurs. Tylocephalonyx is related to the modern horse
Horse
The horse is one of two extant subspecies of Equus ferus, or the wild horse. It is a single-hooved mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature into the large, single-toed animal of today...
, rhino
Rhinoceros
Rhinoceros , also known as rhino, is a group of five extant species of odd-toed ungulates in the family Rhinocerotidae. Two of these species are native to Africa and three to southern Asia....
, and tapir
Tapir
A Tapir is a large browsing mammal, similar in shape to a pig, with a short, prehensile snout. Tapirs inhabit jungle and forest regions of South America, Central America, and Southeast Asia. There are four species of Tapirs: the Brazilian Tapir, the Malayan Tapir, Baird's Tapir and the Mountain...
.
Sources
- National Geographic Prehistoric Mammals (National Geographic) by Alan Turner
- After the Dinosaurs: The Age of Mammals (Life of the Past) by Donald R. Prothero
- Classification of Mammals by Malcolm C. McKenna and Susan K. Bell
- Late Cretaceous and Cenozoic Mammals of North America: Biostratigraphy and Geochronology by Michael O. Woodburne
- Colbert's Evolution of the Vertebrates: A History of the Backboned Animals Through Time by Edwin H. Colbert, Michael Morales, and Eli C. Minkoff
See also
- MoropusMoropusMoropus is an extinct genus of mammal, belonging to a group called chalicotheres, which were perissodactyl mammals, endemic to North America during the Miocene from ~23.0—13.6 Mya, existing for approximately ....
- ChalicotheriumChalicotheriumChalicotherium is a genus of extinct browsing odd-toed ungulates of the order Perissodactyla and family Chalicotheriidae, found in Europe, Africa, and Asia during the Late Oligocene to Lower Pliocene, living from 16—7.75 mya, existing for approximately .This animal...
- AncylotheriumAncylotheriumAncylotherium is an extinct genus of the family Chalicotheriidae, subfamily Schizotheriinae, endemic to Europe, Asia, and Africa during the Late Miocene-Pliocene , existing for approximately .-Taxonomy:...
- KalimantsiaKalimantsiaKalimantsia is an extinct chalicothere from the Miocene of Bulgaria, Europe. It contains one species, K. bulgarica.-Description:Kalimantsia is named for the area in which it was discovered in 2001 by Geraads, Spassov, and Kovachev...