Reinterpretation of the Cambrian ‘Bryozoan' Pywackia as an Octocoral

@inproceedings{Taylor2013ReinterpretationOT,
  title={Reinterpretation of the Cambrian ‘Bryozoan' Pywackia as an Octocoral},
  author={Paul D. Taylor and Bj{\"o}rn Berning and Mark A. Wilson},
  booktitle={Journal of Paleontology},
  year={2013}
}
Abstract Pywackia baileyi Landing in 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… Expand
Distinguishing Earth's oldest known bryozoan (Pywackia, late Cambrian) from pennatulacean octocorals (Mesozoic—Recent)
Abstract. Bryozoans and all biomineralized metazoan phyla extend back into the Cambrian. Pywackia Landing, 2010 is confirmed as a secondarily phosphatized, late Cambrian stenolaemate bryozoan withExpand
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Octocorallia (class Anthozoa, phylum Cnidaria) is a group of calcifying corals displaying a wide diversity of mineral skeletons. This includes skeletal structures composed of different calciumExpand
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Phylogeny and diversification of bryozoans
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A remarkable range of morphological structures in the form of highly modified zooidal polymorphs, or non-zooidal or intrazooidal modular elements, is postulated to have evolved repeatedly in this group; many of these structures have been linked to micropredator protection and can be interpreted as key traits linked to the diversification of cheilostomes. Expand
The middle–late Cambrian reef transition and related geological events: A review and new view
Abstract The reefs of the middle–late Cambrian (Cambrian Epoch 3–Furongian) have long been simply considered as microbialites that flourished in the aftermath of the archaeocyath extinction. ThoroughExpand
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TLDR
The failure of these mitochondrial genes as well as previous 18S rDNA studies to resolve many of the deeper nodes within the tree suggest that octocorals underwent a rapid radiation and that large amounts of sequence data will be required in order to resolve the basal relationships within the clade. Expand
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