Results 31 to 40 of about 1,771 (171)
Morphometric analysis of lungfish endocasts elucidates early dipnoan palaeoneurological evolution
eLife, 2022 The lobe-finned fish, lungfish (Dipnoi, Sarcoptergii), have persisted for ~400 million years from the Devonian Period to present day. The evolution of their dermal skull and dentition is relatively well understood, but this is not the case for the ...
Alice M Clement +6 more
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Histology of juvenile skin of Lepidosiren paradoxa Fitzinger, 1837 (Sarcopterygii, Dipnoi) [PDF]
Anais da Academia Brasileira de Ciências, 2019 : The skin of three juvenile Lepidosiren paradoxa specimens was examined. The epidermis was composed of a polystratified epithelium resting on a basement membrane, including mucus-secreting cells, and a cuticle of mucopolysaccharides on the surface.
LUIS ALBERTO ROMANO +3 more
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Visual pigments in a living fossil, the Australian lungfish
BMC Evolutionary Biology, 2007 Background One of the greatest challenges facing the early land vertebrates was the need to effectively interpret a terrestrial environment. Interpretation was based on ocular adaptations evolved for an aquatic environment millions of years earlier.
Davies Wayne L +3 more
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Journal of Developmental Biology, 2023 Here we report the immunolocalization of mucin, nestin, elastin and three glycoproteins involved in tissue mineralization in small and large juveniles of Neoceratodus forsteri.
Lorenzo Alibardi
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The missing anatomy of the living coelacanth, Latimeria chalumnae (Smith, 1939) [PDF]
Vertebrate Zoology, 2022 Anatomical features that have not been previously described in Latimeria were sought in histological section series, tissue-stained microCT scans, MRI scans, and synchrotron scan series.
Peter Johnston
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Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates. [PDF]
Biol Rev Camb Philos SocABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Schwarz D +6 more
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Frontiers in Immunology, 2018 Animal mucosal barriers constantly interact with the external environment, and this interaction is markedly different in aquatic and terrestrial environments.
Ryan D. Heimroth +2 more
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A Morphological and Histological Investigation of Imperfect Lungfish Fin Regeneration
Frontiers in Ecology and Evolution, 2021 Regeneration, the replacement of body parts in a living animal, has excited scientists for centuries and our knowledge of vertebrate appendage regeneration has increased significantly over the past decades.
Vivien Bothe +3 more
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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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BMC Research Notes, 2011 Background Since the discovery of the "living fossil" in 1938, the coelacanth (Latimeria chalumnae) has generally been considered to be the closest living relative of the land vertebrates, and this is still the prevailing opinion in most general biology ...
Gras Robin, Shan Yunfeng
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