Results 21 to 30 of about 14,592 (213)
Acta Palaeontologica Polonica, 2022 We describe a microvertebrate assemblage from the J&M site, of the Upper Cretaceous (Campanian–Maastrichtian) Williams Fork Formation. Breakdown of fossil bearing matrix was achieved with the use of heated dimethyl sulfoxide.
NICKOLAS A. BRAND +5 more
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PLoS ONE, 2017 Chondrichthyes, which include Elasmobranchii (sharks and batoids) and Holocephali (chimaeras), are a relatively small group in the Mediterranean Sea (89 species) playing a key role in the ecosystems where they are found.
María José Meléndez +6 more
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Mitochondrial DNA. Part B. Resources, 2020 Cartilaginous fishes are a highly vulnerable vertebrate group but remain poorly studied, especially those occupying deep-water ecological niches. Here, we describe the complete mitogenome of the deep-water chimaeriform Hydrolagus affinis (de Brito ...
André Gomes-dos-Santos +7 more
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Mitochondrial DNA. Part B. Resources, 2021 Cartilaginous fish are fascinating taxa, present in the folklore and art of many different cultures. Moreover, they display several unique anatomical, physiological, molecular, and behavioral characteristics making them extremely interesting from a ...
André Gomes-dos-Santos +7 more
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Mitochondrial DNA. Part B. Resources, 2021 Skates, Chondrichthyes fishes from order Rajiformes, are the most species-rich group of all Batoidea. However, their phylogenetic relationships and systematics is still a highly discussed and controversial subject.
André Gomes-dos-Santos +6 more
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The Synarcual of the Little Skate, Leucoraja erinacea: Novel Development Among the Vertebrates
Frontiers in Ecology and Evolution, 2019 Evolutionary variation in anteroposterior patterning of the axial skeleton is a major contributor to the evolution of the vertebrate body plan, with five canonical vertebral types in tetrapods (cervical, thoracic, lumbar, sacral, caudal).
Zerina Johanson +3 more
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Multiple paternity and hybridization in two smooth-hound sharks [PDF]
, 2015 Multiple paternity appears to be a common trait of elasmobranch mating systems, with its occurrence likely driven by convenience, due to females seeking to minimize the stress of male harassment.
Gristina, Michele +5 more
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Questioning hagfish affinities of the enigmatic Devonian vertebrate Palaeospondylus [PDF]
Royal Society Open Science, 2017 Palaeospondylus gunni Traquair, 1890 is an enigmatic Devonian vertebrate whose taxonomic affinities have been debated since it was first described. Most recently, Palaeospondylus has been identified as a stem-group hagfish (Myxinoidea).
Zerina Johanson +5 more
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Sharks, Rays and a Chimaeroid from the Kimmeridgian (Late Jurassic) of Ringstead, Southern England [PDF]
, 2002 Sampling of a lenticular concentration of vertebrate debris and associated sediments from the lower Kimmeridgian of southern England has allowed the study of a diverse and abundant assemblage of chondrichthyan remains.
Underwood, Charlie J.
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Diversification of the Neoselachii (Chondrichthyes) during the Jurassic and Cretaceous [PDF]
, 2006 The Neoselachii are a monophyletic group including all of the extant sharks and rays. They underwent rapid diversification throughout the Jurassic and Cretaceous, going from low-diversity assemblages of members of extinct orders in the Late Triassic to ...
Underwood, Charlie J.
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