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Comment on "Exceptional preservation of organs in Devonian placoderms from the Gogo lagerstätte"
Bjarke Jensen1, Antoon Fransiscus Maria Moorman1, Tobias Wang2
1Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centres, Amsterdam, The Netherlands.
Science (New York, N.Y.)
|May 11, 2023
Abstract:
Trinajstic et al., (Science, 16 September 2022, p. 1311-1314) describe exceptionally well-preserved organs in fossilized Devonian placoderms to infer the early evolution of the vertebrate heart. We argue that the report has numerous shortcomings and examples of mixed specimen codes. Further, we question whether there indeed is any evidence for a mineralized chambered heart in these placoderms.
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