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Zhu, Y. A., Giles, S., Young, G., Hu, Y., Bazzi, M., Ahlberg, P. E., ... & Lu, J. (2020). Endocast and bony labyrinth of a stem gnathostome shed light on the earliest diversification of jawed vertebrates. bioRxiv.
Zhu, You-an, et al. "Endocast and bony labyrinth of a stem gnathostome shed light on the earliest diversification of jawed vertebrates." bioRxiv (2020).
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Y Zhu, S Giles, G Young, Y Hu, M Bazzi, PE Ahlberg… - bioRxiv, 2020 - biorxiv.org

Endocast and bony labyrinth of a stem gnathostome shed light on the earliest diversification of jawed vertebrates.

STEM and diversification

Ahlberg, Giles, Hu, Young

GSID: FCf3wyaOqUEJ

Excerpt

Our understanding of the earliest evolution of jawed vertebrates depends on a credible phylogenetic assessment of the jawed stem gnathostomes collectively known as 'placoderms'. However, their relationships, and even whether 'placoderms' represent a single radiation or a paraphyletic array, remain contentious. Here we describe the endocranial cavity and inner ear of Brindabellaspis stensioi, commonly recovered as a taxon of uncertain affinity branching near the base of 'placoderms'. While some features of its …

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