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Proclinodontomys

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Journal Article

A new echimyid genus (Rodentia, Caviomorpha) in Central Argentina: uncovered diversity of a Brazilian group of mammals in the Pleistocene Available to Purchase

Adriana M. Candela, Marcos Cenizo, Daniel Tassara, Luciano L. Rasia, Céline Robinet, Nahuel A. Muñoz, Carola Cañón Valenzuela, Ulyses F. J. Pardiñas
Published: 01 January 2020
Journal of Paleontology (2020) 94 (1): 165–179.
DOI: https://doi.org/10.1017/jpa.2019.73
...Adriana M. Candela; Marcos Cenizo; Daniel Tassara; Luciano L. Rasia; Céline Robinet; Nahuel A. Muñoz; Carola Cañón Valenzuela; Ulyses F. J. Pardiñas Abstract We describe a new extinct spiny rat, Proclinodontomys dondasi n. gen. n. sp. (Rodentia, Caviomorpha, Echimyidae), represented by a noteworthy...
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View PDF for article title, A new echimyid genus (Rodentia, Caviomorpha) in Central Argentina: uncovered diversity of a Brazilian group of mammals in the Pleistocene
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(1) Geographical references of the localities mentioned in the text, including the type locality of Proclinodontomys dondasi n. gen. n. sp., and (2) their respective stratigraphic profiles.

( 1 ) Geographical references of the localities mentioned in the text, incl... Available to Purchase

Published: 01 January 2020
Figure 2. ( 1 ) Geographical references of the localities mentioned in the text, including the type locality of Proclinodontomys dondasi n. gen. n. sp., and ( 2 ) their respective stratigraphic profiles.
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Cheek teeth of Proclinodontomys dondasi n. gen. n. sp. (MPH-P 0173, holotype), right (1) and left (2) upper cheek teeth, and (MPH-P 0174) left lower cheek teeth (3). Scale bar = 5 mm.

Cheek teeth of Proclinodontomys dondasi n. gen. n. sp. (MPH-P 0173, holot... Available to Purchase

Published: 01 January 2020
Figure 4. Cheek teeth of Proclinodontomys dondasi n. gen. n. sp. (MPH-P 0173, holotype), right ( 1 ) and left ( 2 ) upper cheek teeth, and (MPH-P 0174) left lower cheek teeth ( 3 ). Scale bar = 5 mm.
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Zygomatic index in species of Octodontoidea, taken from Verzi ( 2002 , tab... Available to Purchase

Published: 01 January 2020
Table 2. Zygomatic index in species of Octodontoidea, taken from Verzi ( 2002 , table 2 ), including Euryzygomatomys spinosus and Proclinodontomys dondasi n. gen. n. sp. (zygomatic index in the latter species was obtained from new specimen of Centinela del Mar; in E. spinosus it was taken
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Cheek teeth measurements in mm of Proclinodontomys dondasi n. gen. n. sp.... Available to Purchase

Published: 01 January 2020
Table 3. Cheek teeth measurements in mm of Proclinodontomys dondasi n. gen. n. sp. and P . mordax n. comb. dp4, lower deciduous fourth premolar; DP4, upper deciduous fourth premolar; m1, lower first molar; M1, upper first molar; m2, lower second molar; M2, upper second molar; m3, lower third
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Skull and mandibular measurements in mm of Proclinodontomys mordax n. com... Available to Purchase

Published: 01 January 2020
Table 1. Skull and mandibular measurements in mm of Proclinodontomys mordax n. comb. and P . dondasi n. gen. n. sp. are as follows: BB, greatest breadth of the tympanic bulla; BL, greatest length of the tympanic bulla; CB, condylobasal; CMB, cranial breadth at the external auditory meatus
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Skulls of Echimyidae. (1–3) Proclinodontomys dondasi n. gen. n. sp. (MPH-P 0173, holotype) in dorsal (1), ventral (2), and lateral (3) views; (4–6) P. mordax n. comb. (ZMUC 1/1845:13368) in dorsal (4), ventral (5), and lateral (6) views; (7–9) E. spinosus (MACN 18103) in dorsal (7), ventral (8), and lateral (9) views. Abbreviations: bs, basisphenoid; eam, external acoustic meatus; fm, foramen magnum; fr, frontal; I, incisive; if, incisive foramen; iof, infraorbital foramen; ipf, interpremaxillar foramen; ju, jugal; lps, lateral process of supraoccipital; M1, first molar; M2, second molar; M3, third molar; mx, maxilla; na, nasal; oc, occipital; pa, parietal; P4, fourth premolar; pl, palatine; pmx, premaxilla; sq, squamosal; tb, tympanic bulla. Scale bars = 10 mm.

Skulls of Echimyidae. ( 1–3 ) Proclinodontomys dondasi n. gen. n. sp. (MP... Available to Purchase

Published: 01 January 2020
Figure 3. Skulls of Echimyidae. ( 1–3 ) Proclinodontomys dondasi n. gen. n. sp. (MPH-P 0173, holotype) in dorsal ( 1 ), ventral ( 2 ), and lateral ( 3 ) views; ( 4–6 ) P . mordax n. comb. (ZMUC 1/1845:13368) in dorsal ( 4 ), ventral ( 5 ), and lateral ( 6 ) views; ( 7–9 ) E . spinosus
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Mandibles of Echimyidae. Left hemimandible of Proclinodontomys dondasi n. gen. n. sp. (MPH-P 0174) in lateral (1) and occlusal (2) views; right hemimandible (reversed) of E. spinosus (MACN 18103) in lateral (3) and occlusal (4) views. Abbreviations: cp, coronoid process; mc, masseteric crest; m1, first molar; m2, second molar; m3, third molar; mn, masseteric notch; p4, fourth premolar. Scale bars = 10 mm.

Mandibles of Echimyidae. Left hemimandible of Proclinodontomys dondasi n.... Available to Purchase

Published: 01 January 2020
Figure 5. Mandibles of Echimyidae. Left hemimandible of Proclinodontomys dondasi n. gen. n. sp. (MPH-P 0174) in lateral ( 1 ) and occlusal ( 2 ) views; right hemimandible (reversed) of E . spinosus (MACN 18103) in lateral ( 3 ) and occlusal ( 4 ) views. Abbreviations: cp, coronoid process