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322:. The large upper and lower fourth premolars are proportionally very large, a feature shared with modern marmots. The large fourth premolars are exceptions to the general evolutionary trend in the ground squirrels and only in
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are around 9.5 kg (21 lb) on the basis of femur dimensions, or up to 16 kg (35 lb) on the basis of lengths of premolars. On the basis of lengths of premolars,
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Although some of its features are primitive, in general morphology it resembles the ground squirrels of the genus
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is the largest known ground squirrel and is nearly twice as large as the largest living
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385:"Estimates of body mass for fossil giant ground squirrels, genus Paenemarmota"
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may have weighed up to 15.7 kg (35 lb), while
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313:was smaller, at up to 12.4 kg (27 lb).
383:Goodwin, Thomas H.; Bullock, Kelsey M. (2012).
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254:from North America. Fossils are known from the
330:are these teeth larger than the first molars.
278:) and Mexico. At around the size of a beaver,
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262:age from localities in the United States (
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352:"The Giant Ground Squirrel Paenemarmota"
339:
7:
507:Prehistoric mammals of North America
282:is the largest known member of the
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16:Extinct genus of ground squirrel
350:Repenning, Charles A. (1962).
1:
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210:Hibbert & Schultz 1948
512:Prehistoric rodent genera
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114:Scientific classification
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403:10.1644/11-MAMM-A-312.3
357:Journal of Paleontology
301:. Weight estimates for
250:is an extinct genus of
459:Paleobiology Database
390:Journal of Mammalogy
502:Pleistocene rodents
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427:Taxon identifiers
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497:Pliocene rodents
487:Ground squirrels
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397:(3): 1169β1177.
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29:Temporal range:
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492:Miocene rodents
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364:(93): 540β556.
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326:and the living
311:P. sawrockensis
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252:ground squirrel
236:P. sawrockensis
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435:Paenemarmota
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324:Paenemarmota
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319:Spermophilus
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295:Paenemarmota
294:
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280:Paenemarmota
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247:Paenemarmota
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205:Paenemarmota
204:
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25:Paenemarmota
24:
18:
307:P. mexicana
303:P. barbouri
290:Description
260:Hemphillian
231:P. mexicana
226:P. barbouri
35:Pleistocene
481:Categories
450:Q107694388
334:References
191:Marmotini
181:Sciuridae
137:Kingdom:
131:Eukaryota
33:to Early
444:Wikidata
411:84262448
286:family.
284:squirrel
264:Nebraska
177:Family:
171:Rodentia
161:Mammalia
151:Chordata
147:Phylum:
141:Animalia
127:Domain:
370:1301086
328:Marmota
299:marmots
276:Arizona
256:Blancan
217:Species
197:Genus:
187:Tribe:
167:Order:
157:Class:
31:Miocene
409:
368:
268:Kansas
464:41508
407:S2CID
366:JSTOR
272:Texas
258:and
48:Preκ
399:doi
483::
461::
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405:.
395:93
393:.
387:.
362:36
360:.
354:.
342:^
274:,
270:,
266:,
98:Pg
42:Ma
37:,
413:.
401::
372:.
201:β
103:N
93:K
88:J
83:T
78:P
73:C
68:D
63:S
58:O
53:κ
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