Fossil musculature of the most primitive jawed vertebrates

Katherine Trinajstic, Sophie Sanchez, Vincent Dupret, Paul Tafforeau, John Long, Gavin Young, Tim Senden, Catherine Boisvert, Nicola Power, Per Ahlberg

    Research output: Contribution to journalArticle

    31 Citations (Scopus)

    Abstract

    The transition from jawless to jawed vertebrates (gnathostomes) resulted in the reconfiguration of the muscles and skeleton of the head, including the creation of a separate shoulder girdle with distinct neck muscles. We describe here the only known examples of preserved musculature from placoderms (extinct armored fishes), the phylogenetically most basal jawed vertebrates. Placoderms possess a regionalized muscular anatomy that differs radically from the musculature of extant sharks, which is often viewed as primitive for gnathostomes. The placoderm data suggest that neck musculature evolved together with a dermal joint between skull and shoulder girdle, not as part of a broadly flexible neck as in sharks, and that transverse abdominal muscles are an innovation of gnathostomes rather than of tetrapods.

    Original languageEnglish
    Pages (from-to)160-164
    Number of pages5
    JournalScience
    Volume341
    Issue number6142
    DOIs
    Publication statusPublished - 2013

    Fingerprint Dive into the research topics of 'Fossil musculature of the most primitive jawed vertebrates'. Together they form a unique fingerprint.

  • Cite this

    Trinajstic, K., Sanchez, S., Dupret, V., Tafforeau, P., Long, J., Young, G., Senden, T., Boisvert, C., Power, N., & Ahlberg, P. (2013). Fossil musculature of the most primitive jawed vertebrates. Science, 341(6142), 160-164. https://doi.org/10.1126/science.1237275