The holocephalan ratfish endoskeleton shares trabecular and areolar mineralization patterns, but not tesserae, with elasmobranchs little skate and catshark [PDF]
eLifeSpecific character traits of mineralized endoskeletal tissues need to be clearly defined and comprehensively examined among extant chondrichthyans (elasmobranchs, such as sharks and skates, and holocephalans, such as chimaeras) to understand their ...
Oghenevwogaga Joseph Atake +3 more
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Diversity of tooth mineralisation patterns at the base of crown chondrichthyans [PDF]
Communications BiologyThe highly specialised dentitions of modern sharks enable them to exploit a wide range of food sources. Exceptional fossil preservation of three Late Devonian basal chondrichthyan taxa from the Anti-Atlas, Morocco, provides the unique opportunity to ...
M. Greif +3 more
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The skeletal completeness of the Palaeozoic chondrichthyan fossil record [PDF]
Royal Society Open ScienceChondrichthyes (sharks, rays, ratfish and their extinct relatives) originated and diversified in the Palaeozoic but are rarely preserved as articulated or partly articulated remains because of their predominantly cartilaginous endoskeletons. Consequently,
Lisa Schnetz +3 more
doaj +2 more sources
Integrated Taxonomy and Species Diversity of the Historical Chondrichthyan Collection of the Zoology Museum “Pietro Doderlein” at the University of Palermo (Italy) [PDF]
BiologyIn the context of the progressive tendency to perceive a degraded environmental state as normal, due to the loss of memory of past ecological conditions (i.e., the Shifting Baseline Syndrome), natural history museum collections represent invaluable ...
Maria Vittoria Iacovelli +7 more
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Updated Checklist of Chondrichthyan Species in Croatia (Central Mediterranean Sea) [PDF]
Biology, 2023 Almost half of all chondrichthyan species in the Mediterranean Sea are threatened with extinction, according to the IUCN Red List. Due to a substantial lack of access to data on chondrichthyan catches in the Mediterranean Sea, especially of threatened ...
Pia F. Balàka +6 more
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PLoS ONE, 2019 Threatened chondrichthyan diversity is high in developing countries where scarce resources, limited data, and minimal stakeholder support often render conservation efforts challenging. As such, data on many species, including many evolutionarily distinct
Julia K Baum
exaly +2 more sources
Conservation Science and Practice, 2022 Chondrichthyan fishes are ecologically and economically important, yet many are overfished or at elevated risk of extinction. Researchers report a desire to perform policy‐relevant science that can generate data in support of effective conservation and ...
David S Shiffman, Catherine C Macdonald
exaly +2 more sources
Comment on Balàka et al. Updated Checklist of Chondrichthyan Species in Croatia (Central Mediterranean Sea). Biology 2023, 12, 952 [PDF]
BiologyThe authors write that the last checklist for Croatia was carried out in 2009 and that 52 chondrichthyan species were reported in Croatian waters [...]
Alen Soldo, Lovrenc Lipej
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Comparative genomics illuminates karyotype and sex chromosome evolution of sharks [PDF]
Cell GenomicsSummary: Chondrichthyes is an important lineage to reconstruct the evolutionary history of vertebrates. Here, we analyzed genome synteny for six chondrichthyan chromosome-level genomes.
Jiahong Wu +12 more
doaj +2 more sources
Nature Communications, 2019 Our understanding of the origin of jaws is hampered by the poor fossil preservation of pharyngeal morphology. Here, Dearden et al. provide insight into the skull conditions of early jawed vertebrates through three-dimensional computed tomography imaging ...
Richard P Dearden +2 more
exaly +2 more sources