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New record of titanosaurian (Dinosauria: Sauropodomorpha) osteoderms from the Upper Cretaceous of North Patagonia
(Academic Press Ltd - Elsevier Science Ltd, 2017-06)
The idea that titanosaurs had osteoderms was proposed in the late nineteenth century by Depéret. However, this idea was given little credence by other researchers until 1980 when unequivocal evidence of armoured titanosaurs ...
Finite elements analysis suggests a defensive role for osteoderms in titanosaur dinosaurs (Sauropoda)
(2022-01-01)
Here we present, for the first time, the use of finite element analysis to evaluate bites of two possible predators, a baurusuchid crocodyliform and an abelisaurid theropod into titanosaur osteoderms, in order to test if ...
Morphology, microanatomy, and histology of titanosaur (Dinosauria, Sauropoda) osteoderms from the upper cretaceous of Patagonia
(Society of Vertebrate Paleontology, 2015-01-02)
Titanosaurs are the only group of sauropodomorph dinosaurs that possesses osteoderms. The Anacleto and Allen formations (Upper Cretaceous) from northern Patagonia (Argentina) have provided an abundance of these elements, ...
The Dorsal Integument of the Southern Long-Nosed Armadillo Dasypus hybridus (Cingulata, Xenarthra), and a Possible Neural Crest Origin of the Osteoderms. Discussing Evolutive Consequences for Amniota
(Springer, 2021-02)
Osteoderms are present in most tetrapod lineages with considerable lineage-specific variation. It has been hypothesized that osteoderms are a case of “deep homology” in craniates, but the embryonic origin of osteoderms ...
New osteoderm morphotype (Xenarthra, Mylodontidae) from the middle Pleistocene of Argentina
(Pergamon-Elsevier Science Ltd, 2019-11)
Associated osteoderms of unique aspect have been found in Ensenadan age deposits near San Pedro, in the Pampean Region of Argentina. Their general shape closely resembles that of mylodontid sloths. They are unique in ...
Finite elements analysis suggests a defensive role for osteoderms in titanosaur dinosaurs (Sauropoda)
(Academic Press Ltd - Elsevier Science Ltd, 2022-01)
Here we present, for the first time, the use of finite element analysis to evaluate bites of two possible predators, a baurusuchid crocodyliform and an abelisaurid theropod into titanosaur osteoderms, in order to test if ...
Lactate sequestration by osteoderms of the broad-nose caiman, Caiman latirostris, following capture and forced submergence
(Company of Biologists Ltd, 2003-10-01)
Lactate accumulation in osteoderms; of the broad-nose caiman, Caiman latirostris, was determined following capture and surgery and after a period of forced submergence and related to concurrent values in blood. Control ...
Lactate sequestration by osteoderms of the broad-nose caiman, Caiman latirostris, following capture and forced submergence
(Company of Biologists Ltd, 2003-10-01)
Lactate accumulation in osteoderms; of the broad-nose caiman, Caiman latirostris, was determined following capture and surgery and after a period of forced submergence and related to concurrent values in blood. Control ...
Histology of ‘uncommon’ osteoderms of Glyptodon reticulatus Owen, 1845 (Mammalia, Xenarthra) from the late Pleistocene of Argentina and its systematic and developmental implications
(Pergamon-Elsevier Science Ltd, 2020-08)
The osteoderms of Glyptodon reticulatus that do not belong to the cephalic shield, dorsal cuirass, or caudal tube are very variable morphologically. Their histological structure is also variable. Some lack a cancellous ...
Osteoderm histology of Proterochampsia and Doswelliidae (Reptilia: Archosauriformes) and their evolutionary and paleobiological implications
(Wiley, 2015-02-02)
Postcranial osteoderms are commonly developed in the major lineages of Archosauriformes, including forms such as proterochampsids and doswelliids. Here, we survey the histology of osteoderms of the doswelliids Archeopelta ...