Results 61 to 70 of about 470 (173)

Thesis Abstract Morphological and phylogeographic analysis of Brazilian tortoises (Testudinidae)

open access: yesGenetics and Molecular Research, 2015
The discriminative potentials of biogeography, vocalization, morphology, cytogenetics, hemoglobin, and molecular profiling of cytochrome b as taxonomic techniques for differentiating Brazilian tortoises were evaluated in this study. In Brazil, two species of tortoises are described, Chelonoidis carbonarius and Chelonoidis denticulatus.
T L, Silva   +2 more
openaire   +2 more sources

Lizards and amphisbaenians (Reptilia, Squamata) from the middle Eocene of Mazaterón (Soria, Spain)

open access: yesThe Anatomical Record, Volume 308, Issue 6, Page 1753-1768, June 2025.
Abstract The assemblage of lizards and amphisbaenians (Reptilia, Squamata) from the middle Eocene locality of Mazaterón (Spain) is described. Considering the rather limited material available for the study, the assemblage shows a moderate diversity with eight taxa corresponding to five different families.
Arnau Bolet
wiley   +1 more source

Postcranial anomalies of Eocene freshwater pleurodiran and cryptodiran turtles from the Spanish Duero Basin

open access: yesThe Anatomical Record, Volume 308, Issue 6, Page 1659-1676, June 2025.
Abstract Testudines are one of the best‐represented taxonomic groups among the Paleogene taxa of the Duero Basin (Castile and Leon Autonomous Community, central Spain). Among them, Neochelys (Podocnemidide) and Allaeochelys (Carettochelyidae) are most abundant, allowing the population to be assessed for osteological anomalies.
Andrea Guerrero   +3 more
wiley   +1 more source

The padloper’s tortuous path (Chelonia: Testudinidae): Two genera, not one

open access: yesAfrican Journal of Herpetology, 2018
Since 1957, all padlopers were considered Homopus, which was an anomaly, because only two species have four claws on the front and hind limbs. The revival of the genus Chersobius for the five-toed species (signatus, boulengeri and solus) now limits Homopus to the four-toed species (areolatus and femoralis).
Margaretha D. Hofmeyr, William R. Branch
openaire   +2 more sources

Rio Juruá: site 29 of Price’s expedition, and the first record of a Sebecidae (Notosuchia) for the Brazilian Solimões Formation [PDF]

open access: yesAnais da Academia Brasileira de Ciências
The Solimões Formation is one of the most fossiliferous units of the Neogene to Pleistocene of South America. Its rocks represent fluvial lacustrine Paleo-Amazon environments providing a rich record of paleovertebrate remains, including fishes (e.g ...
ANDRÉ E. PIACENTINI PINHEIRO   +4 more
doaj   +1 more source

Plant cover effect on Bolson tortoise (Gopherus flavomarginatus Legler 1959, Testudinidae) burrow use

open access: yesNature Conservation, 2017
The Bolson tortoise, Gopherus flavomarginatus, occurs within a restricted geographical area in the Mexican Chihuahuan Desert. We analyzed the variation in surface microhabitat with relation to the burrow occupancy for this tortoise at the Mapimí ...
Jorge Luis Becerra-López   +3 more
doaj   +3 more sources

Caracterização dos répteis descartados por mantenedores particulares e entregues ao Centro de Conservação e Manejo de Répteis e Anfíbios – RAN

open access: yesRevista de Biologia Neotropical, 2008
O interesse das pessoas em manter animais silvestres como animais de estimação é mais um incentivo à prática do comércio predatório e indiscriminado da fauna silvestre.
Valéria Leão Souza   +4 more
doaj   +1 more source

Digital skull anatomy of the Oligocene North American tortoise Stylemys nebrascensis with taxonomic comments on the species and comparisons with extant testudinids of the Gopherus–Manouria clade

open access: yesSwiss Journal of Palaeontology
The anatomy of North American tortoises is poorly understood, despite a rich fossil record from the Eocene and younger strata. Stylemys nebrascensis is a particularly noteworthy turtle in this regard, as hundreds of specimens are known from Oligocene ...
Serjoscha W. Evers, Zahra Al Iawati
doaj   +1 more source

New species of Eimeria and Isospora (Protozoa: Eimeriidae) in Geochelone spp. (Chelonia: Testudinidae) from Amazonian Brazil

open access: yesParasite, 2008
Tetrasporocystic, dizoic oocysts of reptiles have been separated by some authors into the genera Eimeria, Choleoeimeria and Acroeimeria (Protozoa: Eimeriidae), based on the site and mode of development of their endogenous stages.
Lainson R.   +3 more
doaj   +1 more source

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