Results 201 to 210 of about 227,665 (340)

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

Fracture Resistance of Zirconia-Reinforced Lithium Silicate in Single Posterior Implant-Supported Crowns: An In Vitro Study. [PDF]

Dent J (Basel)
Gómez-Adrián MD, Natale P, Molina-Palomero A, Vicente-Escuder Á, Espinosa-Giménez J, Gil-Marqués B, Pérez-Bermejo M, Larrazabal-Morón C, Barberá-Millán J, Miralles-Jordá L.   +9 more
europepmc   +1 more source

Intraspecific Competition Influences Food Return-Predation Risk Trade-Off by White-Crowned Sparrows [PDF]

, 1997
Rob Slotow, Ellen E. Paxinos
openalex   +1 more source

New partial skeleton of Homo habilis from the upper Burgi Member, Koobi Fora Formation, Ileret, Kenya

The Anatomical Record, EarlyView.
Abstract KNM‐ER 64061 is a partial skeleton from the upper Burgi Member of the Koobi Fora Formation (2.02–2.06 Ma) associated taphonomically and geochemically with a nearly complete mandibular dentition (KNM‐ER 64060) attributed to Homo habilis.
Frederick E. Grine, Deming Yang, Ashley S. Hammond, William L. Jungers, Michael R. Lague, Carrie S. Mongle, Osbjorn M. Pearson, Meave G. Leakey, Louise N. Leakey   +8 more
wiley   +1 more source

Comparative evaluation of marginal fit in conventional versus high-speed-sintered zirconia crowns: an in vitro study. [PDF]

BMC Oral Health
Basunbul G, Alkhallagi TS.
europepmc   +1 more source

The cranial, mandibular, and hyoid anatomy of softshell turtles (Trionychidae): A revised character list for phylogenetic analysis

The Anatomical Record, EarlyView.
Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
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

Assessment of Prosthodontic Complications in Screw-Retained and Cement-Retained Crowns in Dental Implants: An Original Study.

J Pharm Bioallied Sci
Khurshid G, Rani ML, Vaniya CR, Chamanthi P, Kanitkar A, Mohanty G, Rao MA.   +6 more
europepmc   +1 more source

Evaluation of the marginal and internal gaps in 3D-printed interim crowns using different finish line detection methods: An in vitro study. [PDF]

PLoS One
Huong NTT, Thao NP, Minh Duc N, Viet Anh N, Thu Hang N, Trang NTN, Thanh Tung K, Thu Tra N.   +7 more
europepmc   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source