Description of the Type Specimen of the Extinct Tenerife Giant
Rat (Canariomys bravoi)

J 2022

Description of the Type Specimen of the Extinct Tenerife Giant Rat (Canariomys bravoi)

CASANOVAS-VILAR, Isaac a Ángel HERNÁNDEZ LUJÁN

Základní údaje

Originální název

Description of the Type Specimen of the Extinct Tenerife Giant Rat (Canariomys bravoi)

Autoři

CASANOVAS-VILAR, Isaac a Ángel HERNÁNDEZ LUJÁN

Vydání

Journal of Mammalian Evolution, Springer, 2022, 1064-7554

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.900

Kód RIV

RIV/00216224:14310/22:00128235

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1007/s10914-021-09594-1

UT WoS

000757734200001

EID Scopus

2-s2.0-85124733789

Klíčová slova anglicky

Rodentia; Muridae; Insularity; Canary Islands; Systematic paleontology; Cranial anatomy

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 24. 1. 2023 10:01, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The holotype of the Tenerife (Canary Islands) giant rat, Canariomys bravoi, an almost complete cranium from the Late Pleistocene site of Cueva de las Palomas, is described for the first time. This species is characterized by its large size, robust skull with a short rostrum, dorsal inflation at the level of the infraorbital foramen, and moderately high-crowned upper molars which develop partial stephanodonty at advanced wear stages. Canariomys tamarani from Gran Canaria Island, the only other species of this genus known so far, is slightly smaller and further differs in its higher crowned molars with cusps arranged in a lamellar pattern. However, their crania are remarkedly similar and present a distinctive anatomy of the zygomatic plate, which is very high on the rostrum, so that its dorsal border is nearly on level with the zygomatic process of the maxilla instead of considerably below it as usually seen in murines. This is also observed in other insular, often large-sized, murines but certainly evolved in parallel as an adaptation to herbivory. Molar morphology is congruent with recent analyses of ancient molecular data of C. bravoi which place it in the tribe Arvicanthini (mostly African murines), more concretely within the Arvicanthis niloticus species complex. Even though genetic data indicate that both species diverged very recently, just 650,000 years ago, cranial and dental anatomy of C. bravoi are very derived. Conversely, C. tamarani presents a molar morphology reminiscent of that of A. niloticus albeit associated with a similarly highly derived cranial anatomy.

Návaznosti

EF16_027/0008360, projekt VaV

Název: Postdoc@MUNI

Citovat

CASANOVAS-VILAR, Isaac a Ángel HERNÁNDEZ LUJÁN. Description of the Type Specimen of the Extinct Tenerife Giant Rat (Canariomys bravoi). Journal of Mammalian Evolution. Springer, 2022, roč. 29, č. 3, s. 645-661. ISSN 1064-7554. Dostupné z: https://doi.org/10.1007/s10914-021-09594-1.

@article{2249362,
   author = {CasanovasandVilar, Isaac and Hernández Luján, Ángel},
   article_number = {3},
   doi = {https://doi.org/10.1007/s10914-021-09594-1},
   keywords = {Rodentia; Muridae; Insularity; Canary Islands; Systematic paleontology; Cranial anatomy},
   language = {eng},
   issn = {1064-7554},
   journal = {Journal of Mammalian Evolution},
   title = {Description of the Type Specimen of the Extinct Tenerife Giant Rat (Canariomys bravoi)},
   url = {https://doi.org/10.1007/s10914-021-09594-1},
   volume = {29},
   year = {2022}
}

TY  - JOUR
ID  - 2249362
AU  - Casanovas-Vilar, Isaac - Hernández Luján, Ángel
PY  - 2022
TI  - Description of the Type Specimen of the Extinct Tenerife Giant Rat (Canariomys bravoi)
JF  - Journal of Mammalian Evolution
VL  - 29
IS  - 3
SP  - 645-661
EP  - 645-661
PB  - Springer
SN  - 10647554
KW  - Rodentia
KW  - Muridae
KW  - Insularity
KW  - Canary Islands
KW  - Systematic paleontology
KW  - Cranial anatomy
UR  - https://doi.org/10.1007/s10914-021-09594-1
N2  - The holotype of the Tenerife (Canary Islands) giant rat, Canariomys bravoi, an almost complete cranium from the Late Pleistocene site of Cueva de las Palomas, is described for the first time. This species is characterized by its large size, robust skull with a short rostrum, dorsal inflation at the level of the infraorbital foramen, and moderately high-crowned upper molars which develop partial stephanodonty at advanced wear stages. Canariomys tamarani from Gran Canaria Island, the only other species of this genus known so far, is slightly smaller and further differs in its higher crowned molars with cusps arranged in a lamellar pattern. However, their crania are remarkedly similar and present a distinctive anatomy of the zygomatic plate, which is very high on the rostrum, so that its dorsal border is nearly on level with the zygomatic process of the maxilla instead of considerably below it as usually seen in murines. This is also observed in other insular, often large-sized, murines but certainly evolved in parallel as an adaptation to herbivory. Molar morphology is congruent with recent analyses of ancient molecular data of C. bravoi which place it in the tribe Arvicanthini (mostly African murines), more concretely within the Arvicanthis niloticus species complex. Even though genetic data indicate that both species diverged very recently, just 650,000 years ago, cranial and dental anatomy of C. bravoi are very derived. Conversely, C. tamarani presents a molar morphology reminiscent of that of A. niloticus albeit associated with a similarly highly derived cranial anatomy.
ER  -

CASANOVAS-VILAR, Isaac a Ángel HERNÁNDEZ LUJÁN. Description of the Type Specimen of the Extinct Tenerife Giant Rat (Canariomys bravoi). \textit{Journal of Mammalian Evolution}. Springer, 2022, roč.~29, č.~3, s.~645-661. ISSN~1064-7554. Dostupné z: https://doi.org/10.1007/s10914-021-09594-1.

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