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Pywackia ✝
| Description | Pywackia is a contentious Cambrian fossil that has been interpreted as the earliest (total group) Bryozoan, and the only representative of that phylum in the Cambrian period.Its Bryozoan credentials have been called into question, but the octocoral alternative is equally unconvincing, and there are reasons to suggest a position in the Stenolaemata stem lineage. From Wikipedia article at https://en.wikipedia.org/wiki/Pywackia, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | ||||||||||||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | genus | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF) | Life : Animalia : Bryozoa : Stenolaemata : Pywackia | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Bryozoa : Stenolaemata : Cryptostomata : Pywackia | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Pywackia Landing, 2010 | ||||||||||||||||||||||||||||||||||||||||||
| Name Published In | Article title: Cambrian origin of all skeletalized metazoan phyla-Discovery of Earth's oldest bryozoans (Upper Cambrian, southern Mexico). | ||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 2 | ||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 541 - 485 Ma Cambrian | ||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 541 - 485 Ma Cambrian | ||||||||||||||||||||||||||||||||||||||||||
| Motility | stationary, attached (based on Stenolaemata) | ||||||||||||||||||||||||||||||||||||||||||
| Vision | blind (based on Stenolaemata) | ||||||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder (based on Stenolaemata) | ||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | low Mg calcite (based on Stenolaemata) | ||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | E. Landing, A. English, and J. D. Keppie. 2010. Cambrian origin of all skeletalized metazoan phyla—Discovery of Earth’s oldest bryozoans (Upper Cambrian, southern Mexico). Geology 38(6):547-550 | ||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Pywackia |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Pywackia baileyi ✝ species | accepted (GBIF) listed (PBDB) | 1 | 541 Ma Cambrian | 541 Ma Cambrian |
Synonymy List
| Year | Name and Author |
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| 2010 | Pywackia Landing et al. p. 549 |
| 2013 | Pywackia Taylor et al. |
| 2015 | Pywackia Landing et al. p. 293 |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
