A three-dimensionally preserved lobopodian from the Herefordshire (Silurian) Lagerstätte, UK

Derek J. Siveter, Derek E. G. Briggs, David J. Siveter, Mark D. Sutton, David Legg

    Research output: Contribution to journal › Article › peer-review

    Abstract

    The Herefordshire (Silurian) Lagerstätte (approx. 430 Myr BP) has yielded, among many exceptionally preserved invertebrates, a wide range of new genera belonging to crown-group Panarthropoda. Here, we increase this panarthropod diversity with the lobopodian Thanahita distos, a new total-group panarthropod genus and species. This new lobopodian preserves at least nine paired, long, slender appendages, the anterior two in the head region and the posterior seven representing trunk lobopods. The body ends in a short post-appendicular extension. Some of the trunk lobopods bear two claws, others a single claw. The body is covered by paired, tuft-like papillae. Thanahita distos joins only seven other known three-dimensionally preserved lobopodian or onychophoran (velvet worm) fossil specimens and is the first lobopodian to be formally described from the Silurian. Phylogenetic analysis recovered it, together with all described Hallucigenia species, in a sister-clade to crown-group panarthropods. Its placement in a redefined Hallucigeniidae, an iconic Cambrian clade, indicates the survival of this clade to Silurian times.
    Original languageEnglish
    Pages (from-to)172101
    JournalRoyal Society Open Science
    Volume5
    Issue number8
    Early online date8 Aug 2018
    DOIs
    Publication statusPublished - 2018

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    • ICAL: Interdisciplinary Centre for Ancient Life

      Garwood, R. (PI), Wogelius, R. (PI), Sansom, R. (PI), Buckley, M. (PI), Chamberlain, A. (CoI), Manning, P. (PI), Egerton, V. (CoI), Sellers, W. (PI), Nudds, J. (CoI), Bulot, L. G. (CoI), Brocklehurst, R. (PGR student), Brassey, C. A. (PI), Keating, J. (CoI), La Porta, A. (CoI), Brocklehurst, R. (PGR student), Callender-Crowe, L. (PGR student), Wallace, E. (PGR student), Chester, J. (PGR student), Davenport, J. (PGR student), Tuley, K. (PGR student), Lomax, D. (Researcher), Reeves, J. (PGR student), Smart, C. (PGR student), Ferro, C. (PGR student), Karoullas, C. (PGR student), Heath, J. (PGR student), Dickson, A. (PGR student), Austin Sydes, L. (PGR student), McLean, C. (PGR student), Harvey, V. (PGR student), Jones, K. (PI), Peacock, C. (PGR student), Gordon, P. (PGR student), Oldfield, E.-M. (PGR student), Webb, E. (PGR student), Roberts, F. (PGR student), Savage, H. (PGR student), Chester, J. (PGR student), Jepson, J. (Researcher), Keating, J. (Researcher) & Schwab, J. (Researcher)

      Project: Research

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