Results 21 to 30 of about 2,607 (232)
150 million years of freshwater fish biogeography: vicariance or dispersal? [PDF]
Research & Knowledge, 2017 Freshwater fishes are supposedly good case studies to test palaeobiogeographical models because they are attached to land masses, at least primary freshwater fishes, which are unable to cross marine barriers.
Lionel Cavin
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A new coelacanth from the Early Cretaceous of Brazil (Sarcopterygii, Actinistia)
Paleontological Research, 2002 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Yoshitaka Yabumoto
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Coelacanths from the Middle Triassic of Switzerland and the pace of actinistian evolution [PDF]
Research & Knowledge, 2017 Latimeria chalumnae (Actinistia) was regarded as the ‘ancestor of the four-legged vertebrates’ and rapidly became the iconic example of a ‘living fossil’.
Christophe Ferrante +3 more
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The hyomandibulae of rhizodontids (Sarcopterygii, stem‐tetrapoda)
Journal of Morphology, 2008 AbstractDespite its important role in the study of the evolution of tetrapods, the hyomandibular bone (the homologue of the stapes in crown‐group tetrapods) is known for only a few of the fish‐like members of the tetrapod stem‐group. The best‐known example, that of the tristichopterid Eusthenopteron, has been used as an exemplar of fish‐like stem ...
Martin D, Brazeau, Jonathan E, Jeffery
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Mandibular musculature constrains brain–endocast disparity between sarcopterygians
Royal Society Open Science, 2020 The transition from water to land by the earliest tetrapods in the Devonian Period is seen as one of the greatest steps in evolution. However, little is understood concerning changes in brain morphology over this transition.
T. J. Challands +2 more
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The timing of Timezyme diversification in vertebrates. [PDF]
PLoS ONE, 2014 All biological functions in vertebrates are synchronized with daily and seasonal changes in the environment by the time keeping hormone melatonin. Its nocturnal surge is primarily due to the rhythmic activity of the arylalkylamine N-acetyl transferase ...
Damien Cazaméa-Catalan +3 more
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Brain Reconstruction Across the Fish-Tetrapod Transition; Insights From Modern Amphibians
Frontiers in Ecology and Evolution, 2021 The fish-tetrapod transition (which incorporates the related fin-limb and water-land transitions) is celebrated as one of the most important junctions in vertebrate evolution.
Alice M. Clement +4 more
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A phylogenomic perspective on the radiation of ray-finned fishes based upon targeted sequencing of ultraconserved elements [PDF]
, 2012 Ray-finned fishes constitute the dominant radiation of vertebrates with over 30,000 species. Although molecular phylogenetics has begun to disentangle major evolutionary relationships within this vast section of the Tree of Life, there is no widely ...
Alfaro, Michael E. +3 more
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Frontiers in Immunology, 2019 The immune system is composed of two subsystems—the innate immune system and the adaptive immune system. The innate immune system is the first to respond to pathogens and does not retain memory of previous responses.
Nicole C. Smith +2 more
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