Results 191 to 200 of about 111,805 (229)
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The postcranial skeleton of the Hyposaurinae (Dyrosauridae; Crocodyliformes)
Palaeontology, 2006Abstract: A detailed description of the postcranial skeleton of the Hyposaurinae is presented, based on the hitherto known and new postcranial material. The postcranial skeleton of the hyposaurine Dyrosauridae differs from that of all other crocodilians by the high neural spines, which can reach up to four times the length of the vertebral body ...
DANIELA SCHWARZ +2 more
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Sexual Dimorphism in the Postcranial Skeleton of Dinosaurs
Paleontological Journal, 2020Sex-related variability in the tetrapod skeleton has regular patterns that reflect the different ontogenetic pathways leading to the formation of adult sexual features. In dinosaurs (as well as amniotes in general), these features are most pronounced in the morphology of postcranial bones.
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Postcranial skeleton ofShinisaurus crocodilurus (Squamata: Anguimorpha)
Journal of Morphology, 2006The postcranial skeleton is poorly known for Shinisaurus crocodilurus, the Chinese crocodile lizard. Discrepancies exist between published accounts of Shinisaurus; moreover, comparisons with complete specimens show important differences from the published descriptions.
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Sexual Dimorphism in the Postcranial Skeleton of New World Primates
Folia Primatologica, 1985This study examines sexual dimorphism in 24 dimensions of the postcranial skeleton of four platyrrhine species: Callithrix jacchus, Saguinus nigricollis, Saimiri sciureus, and Cebus albifrons. The two callitrichid species show a relatively small amount of variation in the degree of sexual dimorphism among the different dimensions.
W, Leutenegger, S, Larson
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Functional Morphology of the Postcranial Skeleton
2018The field of vertebrate functional morphology grew out of traditional comparative vertebrate morphology. By the 17th century, scientists were modeling the actions of muscles on the skeleton as simple levers, but this remained uncommon until the latter half of the 20th century with the introduction of the concepts of mechanical advantage and speed vs ...
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Evolutionary Development of the Postcranial and Appendicular Skeleton in Fishes
2018The postcranial skeleton of vertebrates fulfils various tasks constrained by extrinsic and intrinsic requirements, which significantly differ between fishes and tetrapods. For instance, body support, storage of minerals, and haematopoiesis are less important for fishes, which include more than half of all living vertebrates, than for tetrapods ...
Kriwet, Jürgen, Pfaff, Cathrin
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Osteology and Myology of the Lemuriform Postcranial Skeleton
1975The study of limb morphology is no longer, as it has been until recently, simply a complement to the study of external characters and the skull, traditionally regarded by systematists and paleontologists as more significant. The concerns of zoologists today are much wider, extending from pure systematics to ecoethology, and the study of the movements ...
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THE POSTCRANIAL SKELETON OF EARLY EOCENE PAKICETID CETACEANS
Journal of Paleontology, 2007A comparative analysis of the postcranial skeletal morphology of three species of pakicetid cetaceans provides new insights into their locomotor behavior. In gross morphology, they are similar to their smaller early artiodactyl relatives, lacking obvious signs of their transition to an aquatic niche.
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The Postcranial Skeleton of Lanthanotus borneensis (Reptilia, Lacertilia)
Amphibia-Reptilia, 1980AbstractThe postcranial skeleton of Lanthanotus borneensis is described and compared to that of Heloderma and Varanus. In an evolutionary sense, Lathanotus is intermediate in structure between Heloderma showing relatively primitive and Varanus showing relatively advanced character states. This conclusion is well supported by the structure of the tarsus.
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