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Apparatus architecture of the conodont Nicoraella kockeli (Gondolelloidea, Prioniodinina) constrains functional interpretations

Research output: Contribution to journalArticle

Original languageEnglish
Number of pages13
JournalPalaeontology
Early online date17 May 2019
DOIs
DateAccepted/In press - 12 Feb 2019
DateE-pub ahead of print (current) - 17 May 2019

Abstract

We reconstruct the apparatus architecture of the gondollelid conodont Nicoraella kockeli based on fused clusters from the early Middle Triassic (middle Anisian, Pelsonian) of Luoping County, east Yunnan Province, southwest China. These materials were characterized non-invasively using Synchrotron X-Ray Tomographic Microscopy and the ensuing data analysed using computed tomography, allowing us to infer the composition, homologies and architectural arrangement of elements within the apparatus. Much of the original three-dimensional architecture of the apparatus is preserved and our apparatus reconstruction is the best characterized of any taxon within the superfamily Gondolelloidea. This allows us to test architectural models for gondolelloids and prioniodinins, more generally, as well as the functional interpretations based upon them. In particular, we reject a recent functional interpretation of the conodont feeding apparatus which was based on a biomechanically-optimised inference of apparatus architecture in a close gondolelloid relative of Nicoraella. Nevertheless, our architectural model provides a foundation for future functional interpretations of gondolleloids and prioniodinins, more generally.

    Research areas

  • structure, function, conodont apparatus, Middle Triassic, SW China

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    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Wiley at https://onlinelibrary.wiley.com/doi/full/10.1111/pala.12429 . Please refer to any applicable terms of use of the publisher.

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