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Exceptional preservation of organs in Devonian placoderms from the Gogo lagerstätte

Trinajstic, Kate (author)
Curtin Univ, Sch Mol & Life Sci, Bentley, WA 6102, Australia.;Western Australian Museum, Welshpool, WA 6106, Australia.
Long, John A. (author)
Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA 5001, Australia.;Museum Victoria, Melbourne, Vic 3001, Australia.
Sanchez, Sophie (author)
Uppsala universitet,Evolution och utvecklingsbiologi,European Synchrotron Radiat Facil, F-38000 Grenoble, France.
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Boisvert, Catherine A. (author)
Curtin Univ, Sch Mol & Life Sci, Bentley, WA 6102, Australia.
Snitting, Daniel (author)
Uppsala universitet,Evolution och utvecklingsbiologi
Tafforeau, Paul (author)
European Synchrotron Radiat Facil, F-38000 Grenoble, France.
Dupret, Vincent (author)
Uppsala universitet,Evolution och utvecklingsbiologi
Clement, Alice M. (author)
Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA 5001, Australia.
Currie, Peter D. (author)
Monash Univ, Australian Regenerat Med Inst, Clayton, Vic 3800, Australia.;Monash Univ, EMBL Australia, Clayton, Vic 3800, Australia.
Roelofs, Brett (author)
Curtin Univ, Sch Mol & Life Sci, Bentley, WA 6102, Australia.
Bevitt, Joseph J. (author)
Australian Nucl Sci & Technol Org ANSTO, Lucas Heights, NSW 2234, Australia.
Lee, Michael S. Y. (author)
Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA 5001, Australia.;South Australian Museum, Earth Sci Sect, Adelaide, SA 5000, Australia.
Ahlberg, Per, 1963- (author)
Uppsala universitet,Evolution och utvecklingsbiologi
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Curtin Univ, Sch Mol & Life Sci, Bentley, WA 6102, Australia;Western Australian Museum, Welshpool, WA 6106, Australia. Flinders Univ S Australia, Coll Sci & Engn, Adelaide, SA 5001, Australia.;Museum Victoria, Melbourne, Vic 3001, Australia. (creator_code:org_t)
American Association for the Advancement of Science (AAAS), 2022
2022
English.
In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 377:6612, s. 1311-1314
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The origin and early diversification of jawed vertebrates involved major changes to skeletal and soft anatomy. Skeletal transformations can be examined directly by studying fossil stem gnathostomes; however, preservation of soft anatomy is rare. We describe the only known example of a three-dimensionally mineralized heart, thick-walled stomach, and bilobed liver from arthrodire placoderms, stem gnathostomes from the Late Devonian Gogo Formation in Western Australia. The application of synchrotron and neutron microtomography to this material shows evidence of a flat S-shaped heart, which is well separated from the liver and other abdominal organs, and the absence of lungs. Arthrodires thus show the earliest phylogenetic evidence for repositioning of the gnathostome heart associated with the evolution of the complex neck region in jawed vertebrates.

Subject headings

NATURVETENSKAP  -- Biologi -- Evolutionsbiologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Evolutionary Biology (hsv//eng)

Publication and Content Type

ref (subject category)
art (subject category)

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