Results 81 to 90 of about 71,249 (306)

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Infanticide in Chimpanzees: Taphonomic Case Studies from Gombe [PDF]

, 2017
Objectives We present a study of skeletal damage to four chimpanzee (Pan troglodytes) infanticide victims from Gombe National Park, Tanzania. Skeletal analysis may provide insight into the adaptive significance of infanticide by examining whether ...
Collins, D. Anthony, Kamenya, Shadrack, Kirchhoff, Claire A., Mjungu, Deus C., Raphael, Jane, Wison, Michael L.   +5 more
core   +2 more sources

Unfused transverse foramen of the atlas vertebra in the Neandertal lineage fossils

The Anatomical Record, EarlyView.
Abstract In anatomically modern humans, the atlas can display an unfused transverse foramen (UTF) but currently the presence of UTF in the Neandertal lineage is uncertain due to a scarcity of prevalence studies and no exhaustive record of its presence throughout the entire hominin fossil record.
Asier Gómez‐Olivencia, Mikel Arlegi, Juan José Valenzuela‐Fuenzalida, Mathias Orellana‐Donoso, Juan Luis Arsuaga, Juan A. Sanchis‐Gimeno   +5 more
wiley   +1 more source

A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China [PDF]

, 2010
We describe a new dromaeosaurid theropod from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia. The new taxon, Linheraptor exquisitus gen. et sp.
Choiniere, J.N., Clark, J.M., Hone, D.W.E., Li, Z., Norrell, M.A., Pittman, M.D., Sullivan, C., Tan, L., Tan, Q., Xiao, D., Xu, X.   +10 more
core   +1 more source

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans

The Anatomical Record, EarlyView.
Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban, Alberto Martín‐Serra, Alejandro Pérez‐Ramos, Borja Figueirido   +3 more
wiley   +1 more source

‘Cervical vertebral metrics’ A reliable approach to forensic identification: A comprehensive review

Translational Research in Anatomy
Background: Sex and stature are the most critical factors to identify an unknown individual. In addition to the skull, pelvis, and other long bones, the vertebral column exhibits significant differences between males and females.
Shreya, Lydia Shobha Andrade, Rajagopal K V, Vikram Palimar, Muhammad Nasir Ahmad, Vinod C. Nayak, Varun Kumar S G, Bhukya Nom Kumar Naik   +7 more
doaj   +1 more source

Gouty arthritis of the spine in a renal transplant patient : a clinical case report: an unusual presentation of a common disease [PDF]

, 2015
Axial gout is a well-documented but uncommon manifestation of gout. Its mimicking nature and the impracticality of axial joint aspiration might considerably delay its diagnosis.
Dhaese, Sofie, STRYCKERS, MARIJKE, Terryn, Wim, VAN DER MEERSCH, HANS, Van Laecke, Steven   +4 more
core   +1 more source

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

The Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa, Marcos Vinícius Coelho, Camila Cupello   +2 more
wiley   +1 more source