Results 161 to 170 of about 12,075 (246)

Digital restoration of the pectoral girdles of two Early Cretaceous birds and implications for early-flight evolution. [PDF]

Elife, 2022
Wang S, Ma Y, Wu Q, Wang M, Hu D, Sullivan C, Xu X.   +6 more
europepmc   +1 more source

A description of dental microanatomy and implantation geometry in Chamaeleonidae

Journal of Anatomy, EarlyView.
A reassessment of the dental histology in adult chamaeleons reveals the presence of periodontal ligament. Alongside alveolar bone and cementum, these tissues together constitute a compacted and remodelled tripartite periodontium. Our findings include the novel observation of plicidentine‐like protuberances of dentine within underlying bone.
Giles D. Sukkert, Ilaria Paparella, Michael R. Doschak, Aaron R. H. LeBlanc, Michael W. Caldwell   +4 more
wiley   +1 more source

The climatic pattern of East Asia shifted in response to cratonic thinning in the Early Cretaceous. [PDF]

Commun Earth Environ
Wang W, Chu X, Zhang J, Cui Y, Chen X, Wang Y, Su S.   +6 more
europepmc   +1 more source

Cranial osteology, taxonomic reassessment, and phylogenetic relationships of the Early Cretaceous (Aptian-Albian) turtle Trinitichelys hiatti (Paracryptodira). [PDF]

PeerJ, 2022
Rollot Y, Evers SW, Pierce SE, Joyce WG.
europepmc   +1 more source

Widespread complex enameloid microstructure in teeth and rostral denticles of Cretaceous sclerorhynchoid skates (Rajiformes: †Sclerorhynchoidei)

Journal of Anatomy, EarlyView.
This article demonstrates that the teeth and rostral denticles of an extinct clade of sawfish‐like skates display an extremely derived enameloid microstructure, similar to what is known among sharks. The presence of tooth‐like enameloid microstructure in dermal denticles opens new perspectives about the origins and development of chondrichthyan ...
Endy Chateauneuf‐Gautier, Guillaume Guinot   +1 more
wiley   +1 more source

Author Correction: Microfacies impacts on reservoir heterogeneity of early Cretaceous Yamama carbonate reservoir in South Iraq. [PDF]

Sci Rep
Mohammed A, Velledits F.
europepmc   +1 more source

The first dinosaurs from the Early Cretaceous Hami Pterosaur Fauna, China. [PDF]

Sci Rep, 2021
Wang X, Bandeira KLN, Qiu R, Jiang S, Cheng X, Ma Y, Kellner AWA.   +6 more
europepmc   +1 more source

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Microfacies impacts on reservoir heterogeneity of early cretaceous Yamama carbonate reservoir in South Iraq. [PDF]

Sci Rep
Mohammed A, Velledits F.
europepmc   +1 more source

Immature Insect Assemblages from the Early Cretaceous (Purbeck/Wealden) of Southern England. [PDF]

Insects, 2021
Coram RA, Jarzembowski EA.
europepmc   +1 more source