Results 41 to 50 of about 10,578 (195)

Corrigendum: Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a total-evidence phylogeny of Scytodoidea reveal the first fossil Drymusidae. Arthropod Systematics & Phylogeny 80: 541–559. doi: 10.3897/asp.80.e86008 [PDF]

open access: yesArthropod Systematics & Phylogeny
In our previous contribution, “Revision of recluse spiders (Araneae: Sicariidae: Loxosceles) preserved in Dominican amber and a total-evidence phylogeny of Scytodoidea reveal the first fossil Drymusidae” (Arthropod Systematics & Phylogeny 80, 2022 ...
Ivan L. F. Magalhaes   +7 more
doaj   +3 more sources

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

open access: yesJournal of Anatomy, Volume 249, Issue 6, Page 1239-1289, December 2026.
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston   +5 more
wiley   +1 more source

MÁS DE TRES DÉCADAS DE HISTORIA Y VIGENCIA DEL LABORATORIO DE PALEONTOLOGÍA DE VERTEBRADOS DE LA U.N.P.S.J.B. EN COMODORO RIVADAVIA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2022
Por más de tres décadas el Laboratorio de Paleontología de Vertebrados de la Universidad Nacional de la Patagonia San Juan Bosco ha trabajado de forma sistemática en afloramientos cretácicos del centro sur de Chubut y norte de Santa Cruz.
Rubén Darío Martínez   +4 more
doaj   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

open access: yesThe Anatomical Record, Volume 309, Issue 11, Page 3137-3168, November 2026.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro   +7 more
wiley   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

open access: yesThe Anatomical Record, Volume 309, Issue 11, Page 3036-3076, November 2026.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom   +4 more
wiley   +1 more source

Jóvenes, música y pentecostalismo en Comodoro Rivadavia [PDF]

open access: yesIdentidades, 2013
Jóvenes, música y pentecostalismo en Comodoro ...
Luciana Lago
doaj  

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

open access: yesThe Anatomical Record, Volume 309, Issue 10, Page 2752-2789, October 2026.
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   +4 more
wiley   +1 more source

Integrative delimitation of loricate euglenids (Euglenophyta) based on molecular and morphological evidence: Strombomonas, Trachelomonas, and Parastrombomonas gen. nov.

open access: yesTAXON, Volume 75, Issue 5, October 2026.
Abstract DNA sequences of loricate euglenids (genera Strombomonas and Trachelomonas) were analyzed in conjunction with detailed examinations of lorica and monad morphology. Phylogenetic analyses were conducted using 342 new sequences representing three molecular markers (149 nSSU, 102 nLSU, 91 cpSSU rDNA).
Alicja Fells   +3 more
wiley   +1 more source

Hacia una geografía comunitaria. Abordajes desde la cartografía social y los sistemas de información geográfica

open access: yesRevista +E, 2017
Juan Manuel Diez Tetamanti (Coord.). (2014). Comodoro Rivadavia: EDUPA. 162 páginas. Disponible en versión digital.
Lucas Cardozo
doaj   +1 more source

DeepZoo: A cost‐effective and modular sampler for ecological studies in the deep ocean

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 10, Page 2895-2908, October 2026.
Abstract Understanding the structure and dynamics of deep‐ocean communities requires effective sampling of pelagic organisms in near‐bottom waters. These dispersive organisms contribute to biodiversity, connectivity and ecosystem recovery. Yet, current sampling methods remain constrained by size, cost, and depth, leaving key questions unanswered in ...
Johanna N. J. Weston   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy