ArticleProceedings. Biological sciences2012
First tooth-set outside the jaws in a vertebrate.
Article in Proceedings. Biological sciences, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Teeth outside the jaw: Evolution and development of the toothed head clasper in chimaeras.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Article
- A unique mineralization mode of hypermineralized pleromin in the tooth plate of Chimaera phantasma contributes to its microhardness.Scientific reports · 2020Article
- A new cochliodont anterior tooth plate from the Mississippian of Alabama (USA) having implications for the origin of tooth plates from tooth files.Zoological letters · 2018Article
- Article
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2 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Holocephalans (ratfish, rabbitfish and chimaeras) figure with increasing prominence in studies of gnathostome evolutionary biology. Here, we provide the first complete description of the teeth and toothplates of one of the earliest known holocephalans, Chondrenchelys problematica, including the first unambiguous evidence of a gnathostome with an extra-mandibular dentition. We further demonstrate that holocephalan toothplate ontogeny differs fundamentally from all other extant gnathostome examples, and show how the conjunction of these teeth and toothplates challenges the monophyly of an extinct chondrichthyan clade, the Petalodontiformes. Chondrenchelys provides a novel perspective on the evolution of dentitions in shark-like fishes, expands the known repertoire of gnathostome dental morphologies and offers a glimpse of radically new chondrichthyan ecomorphs, now lost from the modern biota, following the end-Devonian extinctions.
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