ArticleNature2014
A Palaeozoic shark with osteichthyan-like branchial arches.
Article in Nature, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed.
- Facial Cartilage Development in Jawed Fish.Development & reproduction · 2026Review
- Cartilaginous fish and mammalian connectin evolved independently from an ancestral bony fish-like structure.Scientific reports · 2025Article
- Three-dimensional fossils of a Cretaceous collared carpet shark (Parascylliidae, Orectolobiformes) shed light on skeletal evolution in galeomorphs.Royal Society open science · 2025Article
- A potential role of Fgf3 for epibranchial formation in zebrafish.Frontiers in cell and developmental biology · 2025Article
- The emergence ofFrontiers in cell and developmental biology · 2025Article
- The skeletal completeness of the Palaeozoic chondrichthyan fossil record.Royal Society open science · 2024Article
- Shark mandible evolution reveals patterns of trophic and habitat-mediated diversification.Communications biology · 2023Article
- Article
- Broad snouted cladoselachian with sensory specialization at the base of modern chondrichthyans.Swiss journal of palaeontology · 2023Article
- The Phylogeny of Rays and Skates (Chondrichthyes: Elasmobranchii) Based on Morphological Characters Revisited.Diversity · 2022Article
- The conundrum of pharyngeal teeth origin: the role of germ layers, pouches, and gill slits.Biological reviews of the Cambridge Philosophical Society · 2022Review
- The morphology and evolution of chondrichthyan cranial muscles: A digital dissection of the elephantfish Callorhinchus milii and the catshark Scyliorhinus canicula.Journal of anatomy · 2021Article
- A symmoriiform from the Late Devonian of Morocco demonstrates a derived jaw function in ancient chondrichthyans.Communications biology · 2020Article
- Mineralization of theFrontiers in genetics · 2020Article
- Article
- The early elasmobranchProceedings. Biological sciences · 2019Article
- High-performance suction feeding in an early elasmobranch.Science advances · 2019Article
- The pharynx of the stem-chondrichthyan Ptomacanthus and the early evolution of the gnathostome gill skeleton.Nature communications · 2019Article
- An early chondrichthyan and the evolutionary assembly of a shark body plan.Proceedings. Biological sciences · 2018Article
- A three-dimensional placoderm (stem-group gnathostome) pharyngeal skeleton and its implications for primitive gnathostome pharyngeal architecture.Journal of morphology · 2017Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The evolution of serially arranged, jointed endoskeletal supports internal to the gills--the visceral branchial arches--represents one of the key events in early jawed vertebrate (gnathostome) history, because it provided the morphological basis for the subsequent evolution of jaws. However, until now little was known about visceral arches in early gnathostomes, and theories about gill arch evolution were driven by information gleaned mostly from both modern cartilaginous (chondrichthyan) and bony (osteichthyan) fishes. New fossil discoveries can profoundly affect our understanding of evolutionary history, by revealing hitherto unseen combinations of primitive and derived characters. Here we describe a 325 million year (Myr)-old Palaeozoic shark-like fossil that represents, to our knowledge, the earliest identified chondrichthyan in which the complete gill skeleton is three-dimensionally preserved in its natural position. Its visceral arch arrangement is remarkably osteichthyan-like, suggesting that this may represent the common ancestral condition for crown gnathostomes. Our findings thus reinterpret the polarity of some arch features of the crown jawed vertebrates and invert the classic hypothesis, in which modern sharks retain the ancestral condition. This study underscores the importance of early chondrichthyans in resolving the evolutionary history of jawed vertebrates.
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