Castoroides


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Noun1.Castoroides - extinct beavers of the Pleistocene; of eastern and southern United States
mammal genus - a genus of mammals
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Dipoides is known from the Neogene of North America, Europe, and Asia (Flynn and Jacobs, 2008) and is a distant relative of Castor, whereas Castoroides, the Pleistocene giant beaver, is more closely allied with Dipoides, according to the tooth pattern (Harington, 1996).
Estimates of how big the beaver Castoroides ohioensis was range from a sizable 60 kilograms on up to the bulk of a modern black bear.
The only extinct form known to be thus associated is Castoroides, a giant beaver, reported by Hay from the town of Adrian, Lenawee County.
The giant beaver Castoroides ohioensis roamed North America near the end of the last ice age.
For example, turtles were recovered at the Christensen site in central Indiana associated with Mammuc, Rangifer, and Castoroides at about 13,000 B.
well preserved skull of Castoroides ohioensis but with the mandible lost, both zygomatic arches missing, and the facial portion of the maxilla broken away; dental series complete and in good condition.
Keywords: Castoroides, Gastropoda, Indiana, lakes, macrofossil, palcoecology, peatland, Pleistocene
There is a general agreement that Castoroides thrived in lakes and ponds that were bordered by swamps (Powell 1948; Stirton 1965; Saunders 1977; Kurten & Anderson 1980; Harington 1986; Holman 1995) as well as marsh habitats (Holman 1975, 1995).
The incisor has the characteristic striations of Castoroides ohioensis.
The presence of Megalonyx jeffersonii at higher latitudes in the western part of its range than in the east parallels the distribution seen in the stag-moose Cervalces scotti, the giant beaver Castoroides ohioensis, and the helmeted muskox Bootherium bombifrons.
For example, turtles were recovered at the Christensen site in central Indiana associated with Mammut, Rangifer, and Castoroides at about 13,000 B.
Measurements of Ludington, Michigan, Castoroides canadensis Right Dentary Length of tooth row 74 mm Greatest length of lower molar II 18 mm Greatest length of lower molar III 16 mm Greatest length of mandibular symphasis 75 mm Greatest length, tip of jaw through condyloid process 202 mm Greatest length of alveolus I 22 mm Greatest length of alveolus IV 22 mm Greatest width of alveolus I 26 mm Greatest width of alveolus IV 18 mm