A Devonian tetrapod-like fish and the evolution of the tetrapod body plan
Abstract
The relationship of limbed vertebrates (tetrapods) to lobe-finned fish (sarcopterygians) is well established, but the origin of major tetrapod features has remained obscure for lack of fossils that document the sequence of evolutionary changes. Here we report the discovery of a well-preserved species of fossil sarcopterygian fish from the Late Devonian of Arctic Canada that represents an intermediate between fish with fins and tetrapods with limbs, and provides unique insights into how and in what order important tetrapod characters arose. Although the body scales, fin rays, lower jaw and palate are comparable to those in more primitive sarcopterygians, the new species also has a shortened skull roof, a modified ear region, a mobile neck, a functional wrist joint, and other features that presage tetrapod conditions. The morphological features and geological setting of this new animal are suggestive of life in shallow-water, marginal and subaerial habitats.
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The first land invasion of fish ancestors occurred during the late Devonian period, approximately 370 million years ago.
“The first land invasion of our fish ancestors is considered to have occurred during the late Devonian period ~370 million years ago (Mya) (Daeschler et al., 2006).”
From Ancestral developmental potentials in early bony fish contributed to vertebrate water-to-land transition (2021) · cites this paper as Daeschler et al., 2006
Geological and anatomical evidence is strongly indicative that Tiktaalik was an animal interacting with the substrate in an aquatic context.
“Geological and anatomical evidence is strongly indicative that Tiktaalik was an animal interacting with the substrate in an aquatic context (12, 42, 43).”
From Fin ray patterns at the fin-to-limb transition (2020) · cites this paper as [42]
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Evolution of the head-trunk interface in tetrapod vertebrates
Sefton, E. M., Bhullar, B.-A. S., Mohaddes, Z., & Hanken, J. (2016) · eLife · doi:10.7554/elife.09972 · Cited by 43 · see citing works
A catfish that can strike its prey on land
Wassenbergh, S. V., Herrel, A., Adriaens, D., Huysentruyt, F., Devaere, S., & Aerts, P. (2006) · Nature · doi:10.1038/440881a · Cited by 43 · see citing works
Modularity of the Neck in Birds (Aves)
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The feeding system of Tiktaalik roseae : an intermediate between suction feeding and biting
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Fin ray patterns at the fin-to-limb transition
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“Geological and anatomical evidence is strongly indicative that Tiktaalik was an animal interacting with the substrate in an aquatic context (12, 42, 43).”
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Australian lungfish, Neoceratodus forsteri, threatened by a new dam
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Implications of Tides for Life on Exoplanets
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Walking with perturbations: a guide for biped humans and robots
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αKlotho Regulates Age-Associated Vascular Calcification and Lifespan in Zebrafish
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The Miguasha Fossil-Fish-Lagerstätte: a consequence of the Devonian land–sea interactions
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- Authors
- Daeschler, E. B., Shubin, N. H., & Jenkins, F. A.
- Affiliations
- University of Chicago (US)
- Harvard University (US)
- Corresponding author
- Daeschler, Edward B.
- Shubin, Neil H.
- ORCID
- Shubin, Neil H.
- Venue
- Nature
- Published
- 2006-04
- Volume
- 440
- Issue
- 7085
- Pages
- 757-763
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2094370487
- Cited by
- 442
- References
- 37
- Citations by year
- 2026: 11 · 2025: 18 · 2024: 23 · 2023: 14 · 2022: 21 · 2021: 18 · 2020: 22 · 2019: 25 · 2018: 33 · 2017: 22 · 2016: 19 · 2015: 21 · 2014: 26 · 2013: 16 · 2012: 21
- FWCI
- 21.96
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Funders
- National Science Foundation
- National Geographic Society
- Harvard University
- University of Chicago
- Government of Nunavut
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Fish Biology and Ecology Studies
- Keywords
- sarcopterygians, lobe-finned fishes, tetrapod origin, transitional fossils, wrist, skull roof, ear region, Late Devonian, Canadian Arctic
- MeSH terms
- Animals, Environment, Biological Evolution, Extremities, Fishes, Fossils, Morphogenesis, Phylogeny, Skull, Water, History, Ancient
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