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2016 | 61 | 3 |
Tytuł artykułu

A new marrellid arthropod from the Ordovician of Wales

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A new taxon of marrellid marrellomorph Dyrnwynia conollyi gen. et sp. nov. is described from the Middle Ordovician (middle Darriwilian, Didymograptus artus Biozone) Llanfallteg Formation of Northern Pembrokeshire, Wales, UK. This taxon, represented by a single specimen, is characterised by the possession of mediolateral spines with tightly spaced secondary cephalic spines limited to their external margins and that decrease in size towards the distal tip. This is the first record of marrellid arthropods from Great Britain and only the fourth record from the entire Ordovician worldwide, which, given their current geographic and temporal distribution, indicates that marrellid arthropods may be more common in the fossil record than previously recognised.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
61
Numer
3
Opis fizyczny
p.617-619,fig.,ref.
Twórcy
Bibliografia
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  • García-Bellido, D.C. and Collins, D.H. 2006. A new study of Marrella splendens (Arthropoda, Marrellomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada. Canadian Journal of Earth Sciences 43: 721–742.
  • Gürich, G. 1931. Mimaster hexagonalis, ein neuer Kruster aus dem unterdevonischen Bundenbacher Dachschiefer. Paläontologische Zeitschrift 13: 204–238.
  • Haug, J.T., Castellani, C., Haug, C., Waloszek, D., and Maas, A. 2013. A Marrella-like arthropod from the Cambrian of Australia: A new link between “Orsten”-type and Burgess Shale assemblages. Acta Palaeontologica Polonica 58: 629–639.
  • Hearing, T.W., Legg, D.A., Botting, J.P., Muir, L.A., McDermott, P., Faulkner, S., Taylor, A.C., and Brasier, M.D. 2016. Survival of Burgess Shale-type animals in a Middle Ordovician deep-water setting. Journal of the Geological Society [published online].
  • Kühl, G. and Rust, J. 2010. Re-investigation of Mimetaster hexagonalis: a marrellomorph arthropod from the Lower Devonian Hunsrück Slate (Germany). Paläontologische Zeitschrift 84: 397–411.
  • Legg, D.A. 2015. The morphology and affinities of Skania fragilis (Arthropoda) from the middle Cambrian Burgess Shale. Bulletin of Geosciences 90: 509–518.
  • Legg, D.A. 2016. An acercostracan marrellomorph (Euarthropoda) from the Ordovician of Morocco. The Science of Nature 103:21: 1–7.
  • Legg, D.A. and Hearing, T.W. 2015. A late surviving xenopod (Arthropoda) from the Ordovician Period, Wales. Geological Magazine 152: 942–948.
  • Legg, D.A., Sutton, M.D., and Edgecombe, G.D. 2013. Arthropod fossil data increase congruence of morphological and molecular phylogenies. Nature Communications 4: 2485.
  • Liu, Q. 2013. The first discovery of Marrella (Arthropoda, Marrellomorpha) from the Balang Formation (Cambrian Series 2) in Hunan, China. Journal of Palaeontology 87: 391–394.
  • Rak, Š., Ortega-Hernández, J., and Legg, D.A. 2013. A revision of the Late Ordovician marrellomorph arthropod Furca bohemica from Czech Republic. Acta Palaeontologica Polonica 58: 615–628.
  • Raymond, P.E. 1920. The appendages, anatomy, and relationships of trilobites. Memoirs of the Connecticut Academy of Arts and Sciences 7: 1–169.
  • Siveter D.J., Briggs, D.E.G., Siveter, D.J., Sutton, M.D., Legg, D., and Joomun, S. 2014. A Silurian short-great-appendage arthropod. Proceedings of the Royal Society B 281: 20132986.
  • Van Roy, P., Orr, P.J., Botting, J.P., Muir, L.A., Vinther, J., Lefebvre, B., el Hariri, K., and Briggs, D.E.G. 2010. Ordovician faunas of Burgess Shale type. Nature 465: 215–218.
  • Walcott, C.D. 1912. Cambrian Geology and Paleontology 2. No. 6. Middle Cambrian Branchiopoda, Malacostraca, Trilobita and Merostomata. Smithsonian Miscellaneous Collection 57: 145–229.
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-301ac1e0-d6f2-4684-a2ad-585c4bee629f
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