Results 101 to 110 of about 70,530 (297)

Nano- and micromechanical properties of dentine: Investigation of differences with tooth side [PDF]

open access: yes, 2011
NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Biomechanics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control ...
Brauer, DS   +3 more
core   +1 more source

A distinctive new species of biting midge in the subgenus Euprojoannisia Brèthes from Mexico with new records of Neotropical species of Forcipomyia Meigen (Diptera: Ceratopogonidae) [PDF]

open access: yes, 2017
A new species of biting midge, Forcipomyia (Euprojoannisia) bibaana, is described and illustrated from an adult male collected in the state Oaxaca, Mexico. The first records of Forcipomyia (E.) mortuifolii Saunders, F. (Lasiohelea) cornuta Saunders and F.
Huerta, Herón   +1 more
core   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

open access: yesThe Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey   +3 more
wiley   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille   +6 more
wiley   +1 more source

A Case of Dental Fusion in Primary Dentition from Late Bronze Age Greece

open access: yesBalkan Journal of Dental Medicine, 2018
Background/Aim: Dental fusion is a developmental abnormality that can occur in primary and/or permanent dentition.
Tritsaroli Paraskevi
doaj   +1 more source

Review of the genus Microchilus Blanchard (Coleoptera: Scarabaeidae: Rutelinae: Geniatini) [PDF]

open access: yes, 2009
The Brazilian scarab beetle genus Microchilus Blanchard (Rutelinae: Geniatini) is reviewed. Based on examination of type specimens, Microchilus beckeri Martínez is transferred to the genus Leucothyreus becoming L.
Jameson, Mary Liz
core  

Heredity of fused anterior teeth in permanent dentition.

open access: yesJapanese Journal of Oral Biology, 1994
Moodyらは西洋白人の女性のみに, 3世代にわたって見られた下顎乳切歯癒合歯を見い出して, 癒合歯は女性を通して女性だけに伝えられていたと結語した。McKusickはこれらの癒合歯を, Holoprosencephalyに見られる単一巨大上顎中切歯と同一視して, 癒合歯はMendel常染色体性優性遺伝であると結論した。日本人は西洋人よりも6~10倍も癒合歯の頻度が多いが, 優性遺伝の症例報告は非常に少ない。このことは癒合歯が優性遺伝であるとする, McKusickらの説に疑問を持たせた。そこで, われわれは乳歯列と永久歯列で癒合歯の家族調査を行った。乳歯列では永久歯列よりも10倍も頻度が高いけれども, 子供の両親の乳歯列での癒合歯は確かめることができなかった。41例の永久歯列の癒合歯のうち ...
Sakuichiro Miyoshi   +3 more
openaire   +2 more sources

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

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