Results 41 to 50 of about 963 (208)

Hemoglobin protein profile as a parameter for taxonomic analysis in Brazilian Testudinidae

open access: yes, 2022
The Brazilian Testudinidae family is widespread across South America. It includes Chelonoidis denticulatus, the largest tortoise in South America and Chelonoidis carbonarius, found mostly in the north and northwestern part of the continent.
Silva, T. L.   +5 more
core   +1 more source

Refining the Vertebrate Mitochondrial 12S rRNA Secondary Structure by Comparative Analysis

open access: yesIntegrative Zoology, EarlyView.
This flowchart outlines the comprehensive workflow of the study, integrating diverse bioinformatics tools (e.g., NCBI2GO, SSU‐align, bpRNA) and their sequential interactions. Key steps, such as data preprocessing, structural prediction, and evolutionary analysis, are depicted with their respective outputs (e.g., standardized records, consensus ...
Fengxia Li   +6 more
wiley   +1 more source

First occurrences of Trionychidae (Testudines, Cryptodira) from the Miocene of Poland: Detailed cranial anatomy and biogeographic implications

open access: yesJournal of Anatomy, Volume 249, Issue 2, Page 314-337, August 2026.
Fossil finds from three Middle Miocene sites in Poland reveal the northernmost known presence of trionychid turtles in Europe, tentatively identified as Trionyx cf. vindobonensis, suggesting a warmer climate that supported thermophilic species in Central Europe during this period. Abstract Modern trionychids (Testudines, Cryptodira) have a pan‐tropical
Yohan Pochat‐Cottilloux   +5 more
wiley   +1 more source

Xerobates Agassiz, 1857, synonyme plus ancien de Scaptochelys Bramble, 1982 (Reptilia, Chelonii, Testudinidae)

open access: yes, 1984
Xerobates agassiz, 1857, synonymous older than Scaptochelys Bramble, 1982 (Reptilia, Chelonii, Testudinidae) . — Recently, Bramble (1982) proposed to split the north-american testudinid genus Gopherus Rafinesque, 1832 into two genera. For the first genus,
Dubois, Alain   +3 more
core   +1 more source

HEAD UP ITS POSTERIOR LOBE, A REPLY TO AGNOLÍN AND CHIMENTO (2025)

open access: yesRivista Italiana di Paleontologia e Stratigrafia
Recently, Agnolín and Chimento (2025) erected a new species of land tortoise, called Chelonoidis pucara Agnolín & Chimento, 2025, from the Pleistocene of Buenos Aires Province, Argentina, based on the holotype MLS 227, identified as “the anterior half ...
EVANGELOS VLACHOS   +1 more
doaj   +1 more source

Parasites of domestic and wild animals in South Africa. LI. Ticks infesting leopard tortoises Stigmochelys pardalis, hingeback tortoises Kinixys zombensis and angulate tortoises Chersina angulata

open access: yesOnderstepoort Journal of Veterinary Research, 2017
The objective of the study was to record the tick species collected from three species of tortoise, each in a different province of South Africa. Ticks were collected from leopard tortoises, Stigmochyles pardalis, in the southern region of the Kruger ...
Ivan G. Horak   +2 more
doaj   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Rickettsiales in South America: A Systematic Review of Their Molecular Detection and Distribution in Arthropods and Vertebrates

open access: yesPublic Health Challenges, Volume 5, Issue 2, June 2026.
ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez   +3 more
wiley   +1 more source

Description of Eimeria motelo sp. n. (Apicomplexa: Eimeriidae) from the yellow footed tortoise, Geochelone denticulata (Chelonia: Testudinidae), and replacement of Eimeria carinii Lainson, Costa & Shaw, 1990 by Eimeria lainsoni nom. nov.

open access: yesMemorias do Instituto Oswaldo Cruz, 2000
Eimeria motelo sp. n. is described from faeces of the yellow-footed tortoise, Geochelone denticulata (L.). Oocysts are irregularly ellipsoidal or cylindrical, with slightly expressed lobed protrusions and irregularities at the poles, possibly caused by ...
Lada Hurková   +3 more
doaj   +3 more sources

A GIANT AMONG GIANTS: A NEW LAND TORTOISE FROM THE PLEISTOCENE OF THE ARGENTINE PAMPAS

open access: yesRivista Italiana di Paleontologia e Stratigrafia
Gigantism in terrestrial tortoises occurred frequently and convergently in different lineages of Testudinidae. Despite the fact that giant forms were geographically and stratigraphically widespread in South America, Pleistocene members are still very ...
FEDERICO L. AGNOLÍN   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy