Results 41 to 50 of about 306 (166)
Publicación Electrónica de la Asociación Paleontológica Argentina, 2022 The fossil record of Cretaceous turtles in Santa Cruz Province is scarce. Turtles have been reported from the Mata Amarilla Formation (Cenomanian), the Cerro Fortaleza Formation (Campanian–Maastrichtian), and the Chorrillo Formation (early Maastrichtian).
Juliana Sterli +4 more
doaj +1 more source
Interpreting character variation in turtles: Araripemys barretoi (Pleurodira: Pelomedusoides) from the Araripe Basin, Early Cretaceous of Northeastern Brazil [PDF]
PeerJ, 2020 The Araripe Basin (Northeastern Brazil) has yielded a rich Cretaceous fossil fauna of both vertebrates and invertebrates found mainly in the Crato and Romualdo Formations, of Aptian and Albian ages respectively.
Saulo Limaverde +6 more
doaj +2 more sources
Opening a turtle graveyard: Size distribution of dead individuals of Phrynops geoffroanus (Pleurodira, Chelidae) [PDF]
Herpetozoa, 2019 Aquatic animals, such as freshwater turtles, are much dependent on the water bodies where they live. Here we describe the size distribution of a population of Phrynops geoffroanus complex that died after the total drought of the artificial water ...
João Fabrício Mota Rodrigues +5 more
doaj +3 more sources
From Genes to Greens: How Diet, Climate and Phylogeny Shape Freshwater Turtle Microbiotas
Environmental Microbiology, Volume 28, Issue 8, August 2026.Gut microbiotas of 234 Australian freshwater turtles vary with diet, climate and evolutionary history. Carnivorous turtles hosted richer, distinct microbial communities compared with omnivores, while climate zones shaped phylum‐level patterns. Ecological factors dominated over phylogeny, highlighting the importance of integrating microbiome and dietary
T. Franciscus Scheelings +7 more
wiley +1 more source
Frontiers in Ecology and EvolutionBothremydidae was a succesful clade of pleurodiran turtles recognized from the Lower Cretaceous to at least the Eocene. This group included freshwater taxa (i.e., the members of Cearachelyini and most of Bothremydini) but also others recognized as ...
Marcos Martín-Jiménez +1 more
doaj +1 more source
Embryonic remnants of intercentra and cervical ribs in turtles
Biology Open, 2013 Summary A broad sample of extant turtles possesses a series of paired bones in the neck that are situated between the cervical vertebrae. These paired bones were originally proposed to be cervical rib remnants, but have more recently been interpreted as ...
Ingmar Werneburg +2 more
doaj +1 more source
Unusual shell anatomy and osteohistology in a new Late Cretaceous panchelid turtle from northwestern Patagonia, Argentina [PDF]
Acta Palaeontologica Polonica, 2017 Rionegrochelys caldieroi de la Fuente, Maniel, and Jannello gen. et sp. nov. is a Late Cretaceous turtle from Rio Negro Province, Argentina. The holotype and the referred specimens of this new species show an unusual shell morphology and microanatomy ...
Marcelo S. De La Fuente +8 more
doaj +1 more source
Diversification patterns based on the largest morphological phylogenetic analysis of Pleurodira [PDF]
, 2015 Background. Most studies on pleurodiran turtles are about the behavior and/or feeding habits analyzes, description of new taxa or specimens (both extinct and extant), or phylogenetic analyzes of one of its subclades with extant taxa: Chelidae, Pelomedusidae or Podocnemididae.
Gabriel S Ferreira +3 more
openaire +1 more source
Freshwater turtles (Testudines: Pleurodira) in the Upper Cretaceous of Chilean Patagonia
Journal of South American Earth Sciences, 2020 Proyecto Anillo en Investigacion en Ciencia y Tecnologia (PIA, ANID-Chile) ACT172099 Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT ...
Jhonatan Alarcón-Muñoz +8 more
openaire +2 more sources
3D CT Anatomy and Morphology of the Appendicular Skeleton of European Pond Turtle (Emys orbicularis)
Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.This study has been designed to assess the anatomical features of the skeletal system in this species and draw comparisons with other turtle species. CT‐Scan Machine and Micro CT‐Scan Machine were used for this study. Gross anatomical studies were performed on prepared bones using the method of using insects.
Omid Zehtabvar +5 more
wiley +1 more source