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
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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 with… Expand
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We describe two new species of esthonioporate bryozoans, Revalotrypa inopinata sp. nov. and R. yugaensis sp. nov., from the Lower Ordovician, south-east of Lake Ladoga, north-western Russia. The… Expand
The Biology and Evolution of Calcite and Aragonite Mineralization in Octocorallia
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 calcium… Expand
Chapter 12 A review of the Early Palaeozoic biogeography of bryozoans
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Re-evaluation of eumetazoan modular coloniality gives a new perspective to Ediacaran–Ordovician animal diversification as well as identifying the root for the Great Ordovician Biodiversification Interval and diverse later Phanerozoic communities. Expand
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
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