publication . Article . 2013

Reinterpretation of the Cambrian ‘Bryozoan' Pywackia as an Octocoral

Paul D. Taylor; Björn Berning; Mark A. Wilson;
Open Access
  • Published: 01 Nov 2013
<jats:p><jats:italic>Pywackia baileyi</jats:italic> Landing <jats:italic>in</jats:italic> Landing et al., 2010, from the upper Cambrian Yudachica Member of Oaxaca State, southern Mexico, consists of small, phosphatic, proximally tapering cylindrical rods covered by shallow polygonal calices. The bryozoan-like morphology of this fossil prompted its interpretation as the first bryozoan known from the Cambrian. However, restudy of some of the original material, employing scanning electron microscopy for the first time, questions the assignment of <jats:italic>Pywackia</jats:italic> to the Bryozoa. Striking similarities between <jats:italic>Pywackia</jats:italic> an...
free text keywords: Palaeontology, Bryozoa, biology.organism_classification, biology, Polygonal calices, Paleontology, Cretaceous, Fossil Record, Geology
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