Three-dimensional limb joint mobility in the early tetrapod
2012年5月23日 · To interpret joint mobility in a locomotor context, we compared the data of Ichthyostega with those of five morphologically and phylogenetically distinct modern tetrapod analogues with varying...
Evolution of forelimb musculoskeletal function across the fish-to ...
2021年1月23日 · Our results support three stages of forelimb functional evolution: first, a “benthic fish” locomotor mode similar to the pectoral fin of extant lungfish, followed by a unique early tetrapod mode distinct from that of extant sarcopterygian fishes and tetrapods, and, last, by a plesiomorphic crown tetrapod mode resembling “modern ...
Early tetrapod cranial evolution is characterized by increased ...
2022年9月9日 · We review modifications to cranial anatomy across the origin of tetrapods and in extant bracketing taxa to test whether loss of bones confers simplification or increased topological complexity to the cranium.
Body size, shape and ecology in tetrapods - Nature
2022年7月27日 · Using whole-body skeletal models of 410 extinct and extant tetrapods, we show that allometric relationships vary across individual body segments thereby yielding changes in overall body shape...
A phylogeny-informed characterisation of global tetrapod traits
2024年7月11日 · Tetrapods are model systems for global biodiversity science, but continuing data gaps and limited data standardization potentially introduce biases. TetrapodTraits is a database of 33,281 tetrapod species, integrating taxonomic, spatial, phylogenetic and attribute data through phylogeny-based multiple imputation.
Morphology of the earliest reconstructable tetrapod - Nature
2019年10月23日 · Here we describe Parmastega aelidae gen. et sp. nov., a tetrapod from Russia dated to the earliest Famennian age (about 372 million years ago), represented by three-dimensional material that...
Body size and life history shape the historical biogeography of tetrapods
2023年8月21日 · Using trait-dependent biogeographic models to analyse data for >7,000 tetrapod species, the authors show that large body size and a fast life history strategy facilitate dispersal success, although this was also true for small body size and a slow life history strategy in a minority of clades.
To address a series of hypotheses that examine the complex interaction among body size, shape and loco-motor and trophic ecology, we extract not only linear measurements of body segment size from...
Systems Biology Approach to the Origin of the Tetrapod Limb
2021年8月6日 · The tetrapod limb is often divided into three anatomical modules: stylopod (humerus/femur), zeugopod (ulna and radius/fibula and tibia), and autopod (wrist and digits), ordered from proximal to distal (Fig. 1a). Most limb variations are explained by reduction or elongation of the skeletal elements of this basic architecture, which Richard Owen ...
Tiktaalik Fossil: Body - BioInteractive
This model shows the skeleton of Tiktaalik, a vertebrate that existed about 375 million years ago and had features of both fish and tetrapods (four-limbed animals). Many lines of evidence indicate that tetrapods evolved from fish ancestors between 385 million and 365 million years ago.