Rhacolepis is an extinct genus of ray-finned fish from the Cretaceous Romualdo Formation of Brazil. Complete fossilised hearts from this species have been…
Rhacolepis is an extinct genus of ray-finned fish from the Cretaceous Romualdo Formation of Brazil. Complete fossilised hearts from this species have been recovered.Maldanis et al. (2016) Heart fossilization is possible and informs the evolution of cardiac outflow tract in vertebrates
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