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Diceratherium

Diceratherium Temporal range: Late OligocenetoMiocene
Skeleton, University of Wyoming Geological Museum
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	Rhinocerotidae
Subfamily:	†Elasmotheriinae
Genus:	†Diceratherium Marsh, 1875
Type species
Diceratherium armatum Marsh, 1875
Species[1]
D. matutinum Marsh, 1870 D. annectens Marsh, 1873 D. armatum Marsh, 1875 D. tridactylum Marsh, 1893 D. niobrarense Peterson, 1906

Diceratherium (meaning "two horned beast") is an extinct genus of rhinocerotid native to North America during the Oligocene through Miocene living from 33.9 to 11.6 mya, existing for approximately 22.3 million years.^[2] Mass estimates for the type species, D. armatum average around 1 t (2,200 lb)^[3]

Taxonomy[edit]

Diceratherium was named by Marsh (1875) based on the type species Diceratherium armatum. It was assigned to Rhinocerotidae by Marsh (1875) and Carroll (1988); to Diceratheriinae by Prothero (1998); to Aceratheriinae by Weidmann and Ginsburg (1999); and to Teleoceratini by Sach and Heizmann (2001).^[4][5] Diceratherium had two horns side by side on its nose.

"Blue Lake Rhino"[edit]

You can help expand this article with text translated from the corresponding article in German. (October 2021) Click [show] for important translation instructions. View a machine-translated version of the German article. Machine translation, like DeepLorGoogle Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 1,944 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:Blue Lake Rhino]]; see its history for attribution. You may also add the template {{Translated|de|Blue Lake Rhino}} to the talk page. For more guidance, see Wikipedia:Translation.

A full-body mold of a Diceratherium exists as an impression in a cliff on the shore of Blue Lake near Coulee City, Washington. The impression is a lava cast that is thought to be of a mature individual that died in a shallow lake and was rapidly buried by a basalt flow during the mid-Miocene (about 15 million years ago), creating a three-dimensional mold of its body. The mold formed a rhinoceros-shaped cave on exposed rocks belonging to the Columbia River Basalt Group, which was first discovered by two Seattle couples searching for petrified wood in 1935, who also discovered remnant bones of the animal. A replica of the "rhinoceros cave" was created by researchers from the University of California Museum of Paleontology in 1948 and later donated to the Burke Museum, where it is on display.^[6][7][8]

References[edit]

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