Results 71 to 80 of about 306 (166)

Phylogenomic analyses support the position of turtles as the sister group of birds and crocodiles (Archosauria)

BMC Biology, 2012
Background The morphological peculiarities of turtles have, for a long time, impeded their accurate placement in the phylogeny of amniotes. Molecular data used to address this major evolutionary question have so far been limited to a handful of markers ...
Chiari Ylenia, Cahais Vincent, Galtier Nicolas, Delsuc Frédéric   +3 more
doaj   +1 more source

A novel herpesvirus from a wild-caught Madagascar spider tortoise shows evidence of host-viral coevolution with a duplication event in Durocryptodira. [PDF]

J Vet Diagn Invest, 2023
Weldon PV, Georoff TA, Hall N, Ossiboff RJ, Childress AL, Wellehan JFX.   +5 more
europepmc   +1 more source

The lowest diploid number in Testudines: Banding patterns, telomeric and 45S rDNA FISH in Peltocephalus dumerilianus, 2n = 26 and FN = 52 (Pleurodira, Podocnemididae)

Genetics and Molecular Biology, 2014
The karyotype of the big-headed Amazon River turtle, Peltocephalus dumerilianus, is characterized based on a sample of seven juveniles from Reserva Biológica do Rio Trombetas, Pará State, Brazil (1°30' S, 56°34' W).
Karen Ventura, Camila N Moreira, Renata Moretti, Yatiyo Yonenag-Yassuda, Miguel T Rodrigues   +4 more
doaj   +1 more source

The evolution of the fifth cervical vertebrae in Pelomedusoides (Testudines, Pleurodira): a preliminary analysis

, 2015
Background. Crown-Pleurodira (i.e.: Cheloides and Pelomedusoides) possess a side-necked retraction mode with specialized cervical vertebrae (CV) anatomy. Moreover, there are distinctive ecological features among its lineages, as the convergent long neck in species of Chelidae and in the extinct pelomedusoid Araripemydidae.
Thiago F Mariani, Pedro S R Romano
openaire   +1 more source

Evaluation of the Validity of the Spanish Eocene Pleurodiran Turtle ‘Duerochelys arribasi’: The Youngest Freshwater Member of Erymnochelyinae (Podocnemididae) in Europe

Diversity
The validity of the youngest representative of Neochelys described to date, representing the last European freshwater member of Erymnochelyinae, has been considered doubtful.
Adán Pérez-García, Andrea Guerrero, Santiago Martín de Jesús, Francisco Ortega   +3 more
doaj   +1 more source

Differences in the anatomy of the lower respiratory tract in selected species of the order Testudines. [PDF]

Vet Med (Praha), 2022
Habova M, Pyszko M, Horak O, Cermakova E, Paral V.   +4 more
europepmc   +1 more source

Taxonomic Reevaluation of Phrynops (Testudines: Chelidae) with the description of two new genera and a new species of Batrachemys

Revista de Biología Tropical, 2001
Relationships among turtle species loosely categorized within the South American genus Phrynops are explored. Three once recognized genera (Batrachemys, Mesoclemmys and Phrynops) that were demoted to subgenera, and then synonymized with Phrynops, are ...
William P. McCord, Mehdi Joseph-Ouni, William W. Lamar   +2 more
doaj  

Una tortuga Chelidae (Testudines: Pleurodira) de cuello largo en el Grupo Neuquén, Río Negro, Argentina: Significado cronológico y paleobiogeográfico A long-necked Chelidae turtle (Testudines: Pleurodira) from the Neuquén Group, Río Negro, Argentina: Chronological and paleobiogeographical significance

Andean Geology, 2010
Diferentes restos de una tortuga Chelidae cuellilarga de la Formación Anacleto (Santoniano tardío-Campaniano temprano), aflorante en la localidad de Valle de la Luna Rojo, Provincia de Río Negro, Argentina, son conferidos a la especie Yaminuechelys cf ...
Marcelo S de la Fuente, Rubén Barbieri, Pablo Chafrat   +2 more
doaj  

Turtle Shell Kinesis Underscores Constraints and Opportunities in the Evolution of the Vertebrate Musculoskeletal System. [PDF]

Integr Org Biol, 2023
Cordero GA.
europepmc   +1 more source

New species of Polystomoides (Monogenoidea: Polystomatidae) parasitizing the urinary bladder of a freshwater turtle in Brazil. [PDF]

Rev Bras Parasitol Vet, 2023
Lignon JS, Cohen SC, Justo MCN, Du Preez L, Comarella CG, Nishimaru RA, Souza PVAM, Ataíde MW, Müller DCM, Brun MV, Monteiro SG.   +10 more
europepmc   +1 more source