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Chancelloriidae ✝
| Description | The Chancelloriids are an extinct family of animal common in sediments from the Early Cambrian to the early Late Cambrian. Many of these fossils consists only of spines and other fragments, and it is not certain that they belong to the same type of organism. Other specimens appear to be more complete and to represent sessile, bag-like organisms with a soft skin armored with star-shaped calcareous sclerites from which radiate sharp spines. From Wikipedia article at https://en.wikipedia.org/wiki/Chancelloriidae, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||
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| Source Data |
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| Rank | family | |||||||||||||||||||||||||
| Taxonomy (GBIF) | Life : Animalia : Chancelloriidae | |||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Problematica : Coeloscleritophora : Chancelloriida : Chancelloriidae | |||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Chancelloriidae | |||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | |||||||||||||||||||||||||
| Taxon Size (PBDB) | 40 | |||||||||||||||||||||||||
| First Recorded Appearance | 541 - 530 Ma Cambrian | |||||||||||||||||||||||||
| Last Recorded Appearance | 497 - 485 Ma Cambrian | |||||||||||||||||||||||||
| Motility | stationary, attached | |||||||||||||||||||||||||
| Vision | blind (based on Coeloscleritophora) | |||||||||||||||||||||||||
| Diet | suspension feeder | |||||||||||||||||||||||||
| Ecospace Comments | BODY SIZE: Based on component genera; 2 of 2 genera share 0.1 to < 1 mm length. LIFE HISTORY: Erect, non-motile attached, suspension feeder according to Bambach et al (2007) | |||||||||||||||||||||||||
| Primary Reference (PBDB) | G. A. Brock and B.J. Cooper. 1993. Shelly fossils from the Early Cambrian (Toyonian) Wirrealpa, Arrona Creek, and Ramsay Limestones of South Australia. Journal of Paleontology 67(5):758-787 | |||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Chancelloriidae |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Allonia ✝ genus | accepted (GBIF) listed (PBDB) | 38 | 541 Ma Cambrian | 513 Ma Cambrian | |
| Allonnia ✝ genus | accepted (GBIF) listed (PBDB) | 68 | 541 Ma Cambrian | 513 Ma Cambrian | |
| Archiasterella ✝ genus | accepted (GBIF) listed (PBDB) | 102 | 541 Ma Cambrian | 497 Ma Cambrian | |
| Chancelloria ✝ genus | accepted (GBIF) listed (PBDB) | 276 | 541 Ma Cambrian | 497 Ma Cambrian | |
| Chancelloriella ✝ genus | accepted (GBIF) listed (PBDB) | 10 | 541 Ma Cambrian | 516 Ma Cambrian | |
| Diffusasterella ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Eremactis ✝ genus | accepted (GBIF) listed (PBDB) | 49 | 520 Ma Cambrian | 516 Ma Cambrian | |
| Platyspinites genus | accepted (GBIF) | No associated record in PBDB | |||
Synonymy List
| Year | Name and Author |
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| 1920 | Chancelloriidae Walcott |
| 1952 | Chancelloriidae Henningsmoen |
| 1993 | Chancelloriidae Brock and Cooper p. 764 |
| 1996 | Chancelloriidae Landing and Bartowski p. 755 |
| 2001 | Chancelloriidae Bengtson and Hou p. 19 |
| 2006 | Chancelloriidae Skovsted p. 1099 |
| 2010 | Chancelloriidae Parkhaev and Demidenko p. 897 |
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!
