Response to comment on "Exceptional preservation of organs in Devonian placoderms from the Gogo largerstätte".

Trinajstic, Kate; Long, John; Sanchez, Sophie; Boisvert, Catherine A; Snitting, Daniel; Tafforeau, Paul; Dupret, Vincent; Clement, Alice M et al. · Science · 2023

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Abstract

Jensen <i>et al</i>. (<i>1</i>) question evidence presented of a chambered heart within placoderms, citing its small size and apparently ventral atrium. However, they fail to note the belly-up orientation of the placoderm within one nodule, and the variability of heart morphology within extant taxa. Thus, we remain confident in our interpretation of the mineralized organ as the heart.

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