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Feeding behaviour of a new worm (Priapulida) from the Sirius Passet Lagerstatte (Cambrian series 2, stage 3) of North Greenland (Laurentia)
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
2017 (English)In: Palaeontology, ISSN 0031-0239, E-ISSN 1475-4983, Vol. 60, no 6, p. 795-805Article in journal (Refereed) Published
Abstract [en]

Singuuriqia simoni gen. et sp. nov. represents the first record of a priapulid worm from the Sirius Passet Lagerstatte (Cambrian Series 2, Stage 3) of North Greenland (Laurentia). It is defined by an unusually broad, longitudinally folded, foregut which tapers through the pharynx towards the anterior mouth; posteriorly, the same longitudinal folding is evident in the narrow gut. The slender, smooth, trunk in the unique specimen passes anteriorly into an oval proboscis which culminates in a smooth, extensible, pharynx with pharyngeal teeth. The capacity for substantial expansion of the foregut permitted rapid ingestion of food prior to digestion at leisure. Cololites suggest both carnivorous and deposit feeding behaviour, indicating that Singuuriqia, like the present day Priapulus, was probably omnivorous.

Place, publisher, year, edition, pages
WILEY , 2017. Vol. 60, no 6, p. 795-805
Keyword [en]
Cambrian, Laurentia, Greenland, Priapulida, feeding, cololites
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:uu:diva-337104DOI: 10.1111/pala.12316ISI: 000412405100003OAI: oai:DiVA.org:uu-337104DiVA, id: diva2:1168956
Available from: 2017-12-22 Created: 2017-12-22 Last updated: 2017-12-22Bibliographically approved

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Peel, John Stuart

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