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53:
281:" has been speculated to be in reference to Cope's disbelief that such a large rodent could evolve in an isolated region such as the islands of the northern Lesser Antilles. It is now accepted that Cope thought that the animal was cosmopolitan in nature, moving freely from island to island due to the lowered sea levels of the interval, which enabled
324:
Philadelphia
Academy of Sciences to estimate the potential scientific value of said specimens. These fossils were then given to famed paleontologist Edward Drinker Cope, who was serving as the academy's secretary at that time. Cope is said to have taken particular interest in them and their notably large size.
323:
Paleontology work began in the northeastern area of the
Caribbean in the mid nineteenth century, when phosphate mining boomed in the region and fossils were coincidentally found in associated strata. Later, in 1868, samples of fossils and their overlying sediments were sent from the islands to the
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Some authors have suggested that its extinction may have resulted from overhunting by pre-Columbian humans. However, it is unknown whether this species was contemporaneous with human populations. Fossil specimens discovered at the end of the 20th century on
Anguilla have been dated to the last
463:
Marivaux, Laurent; Vélez-Juarbe, Jorge; Merzeraud, Gilles; Pujos, François; Viñola López, Lázaro W.; Boivin, Myriam; Santos-Mercado, Hernán; Cruz, Eduardo J.; Grajales, Alexandra; Padilla, James; Vélez-Rosado, Kevin I. (2020-02-12).
450:"New specimens of Amblyrhiza inundata (Rodentia, Caviomoprha) from the Middle Pleistocene of Saint Barthélemy, French West Indies", 2014, Caribbean Journal of Earth Science, D.A. McFarlane, J. Lundberg & G. Maincent
327:
The fossilized remains of this remarkably large rodent are found solely within
Quaternary cave deposits, all of which are located on the islands of the northern Lesser Antilles, specifically Anguilla and St. Martin.
432:"Late Quaternary vertebrate faunas of the Lesser Antilles: historical components of Caribbean biogeography", 1994, Bulletin of Carnegie Museum of Natural History. Pregill, G. K., D. W. Steadman, and D. R. Watters.
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ranged from just under 50 kg in mass to over 200 kg in mass. These calculations were based on comparisons with extant caviomorphs of 16 different species. The blunt teeth of
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in 1868 in a sample of phosphate sediments mined in an unknown cave (possibly
Cavannagh Cave) in Anguilla and sent to Philadelphia to estimate the value of the sediments. It is the
528:
McFarlane, Donald A.; MacPhee, Ross D. E.; Ford, Derek C. (July 1998). "Body Size
Variability and a Sangamonian Extinction Model for Amblyrhiza, a West Indian Megafaunal Rodent".
441:"Body size variability and a Sangamonian extinction model for Amblyrhiza, a West Indian megafaunal rodent", 1998, Quaternary Research, D.A. McFarlane, R.D.E. MacPhee & D. Ford
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fits in a phylogenetic context, it is thought that they belong to a paraphyletic group of giant caviomorphs known as
Heptaxodontidae. More recent work finds
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233:) are dated to 400,000 - 500,000 years; no bone has been recovered yet from a pre-Columbian archaeological site. Despite being described as a "giant
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293:, a smaller yet similar rodent found in the Quaternary deposits of Puerto Rico. Although it has yet to be decided exactly where
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392:(Rodentia: Caviomorpha), an extinct megafaunal rodent from the Anguilla Bank, West Indies: Estimates and implications".
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466:"Early Oligocene chinchilloid caviomorphs from Puerto Rico and the initial rodent colonization of the West Indies"
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Known colloquially as the "blunt toothed hutia", this animal's scientific name reflects a similar narrative. "
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that is estimated to have weighed between 50 and 200 kg (110 and 440 lb). It was discovered by
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suggest an herbivorous lifestyle, consistent with that of the other genera within
Heptaxodontidae.
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McFarlane, Donald (1993). "Amblyrhiza and the
Vertebrate Paleontology of Anguillean Caves".
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Biknevicus, A. R.; McFarlane, D. A.; MacPhee, R. D. E. (1993). "Body size in
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Paleontologist A. R. Biknevicius and his team have estimated body size for
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interstadial period, while very recent discoveries made on Coco Islet (
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Mammal
Species of the World: A Taxonomic and Geographic Reference
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359:(3rd ed.). Johns Hopkins University Press. p. 1600.
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remains. They concluded based upon these specimens that
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Proceedings of the Royal Society B: Biological Sciences
237:", it has recently been recovered as a member of the
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289:is currently considered to be a close relative of
565:El BoletĂn de la Sociedad Venezolana EspeleologĂa
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253:based upon 5 femora and 9 humeri from adult
277:" roughly translates to "blunt root", and "
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305:to be members of the Chinchilloidea, with
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345:Woods, C.A.; Kilpatrick, C.W. (2005).
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776:Taxa named by Edward Drinker Cope
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422:. Wondermondo. 6 October 2012.
309:being most closely related to
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786:Fossil taxa described in 1868
347:"Infraorder Hystricognathi"
197:) is an extinct species of
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420:"Cavannagh Cave, Anguilla"
394:American Museum Novitates
189:blunt-toothed giant hutia
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48:Scientific classification
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35:Blunt-toothed giant hutia
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27:Extinct species of rodent
781:Pleistocene extinctions
291:Elasmodontomys obliquus
542:10.1006/qres.1998.1977
482:10.1098/rspb.2019.2806
353:; Reeder, D.M (eds.).
221:in the fossil family
613:Amblyrhiza inundata
593:Paleontology portal
530:Quaternary Research
390:Amblyrhiza inundata
263:Amblyrhiza inundata
251:Amblyrhiza inundata
211:Edward Drinker Cope
194:Amblyrhiza inundata
174:Amblyrhiza inundata
18:Amblyrhiza inundata
476:(1920): 20192806.
396:(3079). New York:
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605:Taxon identifiers
366:978-0-8018-8221-0
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637:Wikispecies
245:Description
199:giant hutia
40:Pleistocene
765:Categories
657:Amblyrhiza
643:Amblyrhiza
332:References
307:Amblyrhiza
299:Amblyrhiza
295:Amblyrhiza
287:Amblyrhiza
283:Amblyrhiza
275:Amblyrhiza
259:Amblyrhiza
255:Amblyrhiza
219:Amblyrhiza
180:Cope, 1868
132:Amblyrhiza
550:0033-5894
490:0962-8452
406:2246/4976
319:Discovery
146:Species:
71:Kingdom:
65:Eukaryota
735:13400608
709:10661171
628:Q1768293
622:Wikidata
508:32075529
400:: 1–25.
375:62265494
279:inundata
269:Taxonomy
203:Anguilla
111:Family:
105:Rodentia
95:Mammalia
85:Chordata
81:Phylum:
75:Animalia
61:Domain:
748:3611157
696:2439712
573:5692731
499:7031660
312:Dinomys
171:†
150:†
124:Genus:
101:Order:
91:Class:
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683:326516
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140:, 1868
704:IRMNG
569:S2CID
349:. In
235:hutia
201:from
717:ITIS
691:GBIF
670:CNFH
546:ISSN
504:PMID
486:ISSN
371:OCLC
361:ISBN
301:and
205:and
187:The
138:Cope
730:MSW
678:EoL
665:CoL
652:ADW
538:doi
494:PMC
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474:287
402:hdl
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