Results 1 to 10 of about 1,753 (143)

Comparative osteology of Chondrostoma orientale and C. nasus [PDF]

open access: yesیافته‌های نوین در علوم زیستی, 2020
Comparison of morphological structures is a key element in evolutionary biology and taxonomy, as well as in the studies concerning variation and biodiversity either at interspecific or intraspecific levels. This study aimed to compare the bony structures
Sayyed Ali Moezzi   +2 more
doaj   +2 more sources

The comparative osteology of the petrotympanic complex (ear region) of extant baleen whales (Cetacea: Mysticeti). [PDF]

open access: yesPLoS ONE, 2011
BackgroundAnatomical comparisons of the ear region of baleen whales (Mysticeti) are provided through detailed osteological descriptions and high-resolution photographs of the petrotympanic complex (tympanic bulla and petrosal bone) of all extant species ...
Eric G Ekdale   +2 more
doaj   +2 more sources

The comparative osteology of Plesiochelys bigleri n. sp., a new coastal marine turtle from the Late Jurassic of Porrentruy (Switzerland) [PDF]

open access: yesPeerJ, 2017
Background During the Late Jurassic, several groups of eucryptodiran turtles inhabited the shallow epicontinental seas of Western Europe. Plesiochelyidae are an important part of this first radiation of crown-group turtles into coastal marine ecosystems.
Christian Püntener   +2 more
doaj   +3 more sources

Comparative Cranial and Postcranial Osteology of Blanus Species (Squamata: Amphisbaenia) from Türkiye: Insights from Morphological Evolution and Phylogeny [PDF]

open access: yesLife
The genus Blanus (Amphisbaenia: Blanidae) comprises fossorial, limbless reptiles with cryptic external morphology, making species delimitation particularly challenging.
Elif Yıldırım Caynak   +10 more
doaj   +2 more sources

Comparative appendicular osteology of Tor spp. (Cyprinidae) in Indonesia

open access: yesDepik Jurnal
Tor tambroides, T. tambra, T. douronensis, and T. soro are native fish species to Indonesia with their natural habitat generally being upstream of rivers in hilly areas with clear water and strong currents.
Yusrizal Akmal   +7 more
doaj   +2 more sources

A new specimen of Sinopterus dongi (Pterosauria, Tapejaridae) from the Jiufotang Formation (Early Cretaceous, China) [PDF]

open access: yesPeerJ, 2021
The Tapejarinae are edentulous pterosaurs that are relatively common in Cretaceous continental deposits in South America, North Africa, Europe, and China (mostly Early Cretaceous).
Caizhi Shen   +6 more
doaj   +2 more sources

Forensic Tools for Species Identification of Skeletal Remains: Metrics, Statistics, and OsteoID

open access: yesBiology, 2021
Although nonhuman remains constitute a significant portion of forensic anthropological casework, the potential use of bone metrics to assess the human origin and to classify species of skeletal remains has not been thoroughly investigated.
Heather M. Garvin   +6 more
doaj   +1 more source

High Endemism in an Endangered Biodiversity Hotspot: Phylogeny, Taxonomy and Distribution Patterns of Catfishes of the Psammocambeva Alpha-Clade (Siluriformes: Trichomycteridae) from the Rio Doce Basin, Brazil

open access: yesFishes, 2023
The Rio Doce basin is situated in a biodiversity hotspot, with some fish groups still superficially known. The intense process of habitat loss and water contamination justifies efforts to speed up the pace of describing fish species diversity. Herein, we
Wilson J. E. M. Costa   +4 more
doaj   +1 more source

Molecular Phylogeny, Taxonomy and Distribution Patterns of Trichomycterine Catfishes in the Middle Rio Grande Drainage, South-Eastern Brazil (Siluriformes: Trichomycteridae)

open access: yesFishes, 2023
The Rio Grande drainage plays a key role in supplying water and electricity to large urban centres, but some components of its rich ichthyofauna are still poorly known.
Wilson J. E. M. Costa   +3 more
doaj   +1 more source

Perils of Underestimating Species Diversity: Revisiting Systematics of Psammocambeva Catfishes (Siluriformes: Trichomycteridae) from the Rio Paraíba do Sul Basin, South-Eastern Brazil

open access: yesTaxonomy, 2022
Psammocambeva, a subgenus of Trichomycterus s.s., includes a clade endemic to south-eastern Brazil, the Psammocambeva alpha-clade (PAC), containing species with similar colour pattern and fin morphology, making difficult their identification without ...
Wilson J. E. M. Costa   +4 more
doaj   +1 more source

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