#chilotherium

Chilotherium

Chilotherium — рід носорогових, який жив в пізньому міоцені – до пліоцену 15-2 мільйонів років тому. Ареал поширення хілотерія був від Азії до Північно-Східної Європи. Відомо близько одинадцяти видів хілотеріїв.

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A Pair of Parasaurolophus walkeri in their native forest-wetland habitat which forms what is now the Dinosaur Park Formation in Alberta.

A Tylosaurus proriger shares its shallow water habitat with several fish species, including a pair of Pachyrhizodus caninus chasing a Pentanogmius evolutus at the bottom, as well as a Cretoxyrhina and Protosphyraena in the background.

Kronosaurus queenslandicus, a giant 11-meter-long (more than 36 ft) pliosaur from the Early Cretaceous (120-100 mya) of Australia, named after the leader of the Titans in Greek Mythology.

Dinocrocuta vs Chilotherium

Artwork by Julio Lacerda / @paleoart

Dinocrocuta was a hyena-like predator, one of the biggest carnivores to stalk the ancient grasslands of China. It could take on prey animals as large as the rhinoceros Chilotherium, as shown by a 9-million-year-old fossil skull with a deep injury on its forehead.

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The Chilotherium (1924)

Phylum : Chordata Class : Mammalia Order : Perissodactyla Family : Rhinocerotidae Genus : Chilotherium Species : C. blanfordi, C. fatehjangense, C. smith-woodwardi, C. ibericum, C. quintanelensis, C. zernowi, C. palaeosinense, C. hipparionum, C. tsaidamense, C. intermedium, C. tanggulaense, C. pygmaeum, C. brancoi, C. yunnanensis, C. tianzhuensis, C. cornutum, C. samium, C. schlosseri, C. ponticum, C. wegneri, C. kowalesvkii, C. angustifrons, C. kiliasi, C. anderssoni, C. planifrons, C. fenhoensis, C. habereri, C. gracile, C. wimani, C. xizangensis, C. persiae

Late Miocene/Pliocene (13,7 - 3,4 Ma)

1,8 m high and 2 500 kg (size)

Eurasia (map)

It was a large, robust animal reaching 1.5-1.8 m in height and a weight between 1 and 2.5 tons, depending on the species.

Both sexes are horn-less. The lower jaw has a widened symphysial part and large tusk-like second incisors separated by a broad diastema. The dental formula is 0.0.3.31(2).0.3.3. The limbs are very short and the body stout; the feet are tridactyl with diverging metapodials. Studying C. wimani, Chen et al. 2010 found a significant sexual dimorphism in the tusks and mandible, most notably the length of the tusks in males

Geraads & Spassov 2009 argued that some features in Chilotherium, such as second incisors, mandible, cheek-teeth and other cranial features, are plesiomorphic, while some features in the tusks are apomorphic: the dorsal surface of the tusks in primitive species is turned latero-dorsally in more derived species while the medial edge has become very sharp and sickle-like and rotated dorsally, and thus a more effective cutting tool.

Chilotherium