Chancelloriidae ✝

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Allonia sp.

Kunming, Yunnan, China

Allonia sp.

Kunming, Yunnan, China

Allonia sp.

Kunming, Yunnan, China

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 4.0.

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4579107	https://www.gbif.org/species/4579107
PaleoBioDB ID (PBDB)	85331	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=85331

Rank

family

Taxonomy (GBIF)

Life : Animalia : Chancelloriidae

Taxonomy (PBDB)

Life : Animalia : Problematica : Coeloscleritophora : Chancelloriida : Chancelloriidae

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
phylum	Problematica
class	Coeloscleritophora	Bengston and Missarzhevsky 1981
order	Chancelloriida	Walcott 1920
family	Chancelloriidae	Walcott 1920

Scientific Name

Chancelloriidae

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Chancelloriidae	family	belongs to Hexactinellida	stated with evidence	Henningsmoen, 1952
Chancelloriidae	family	belongs to Coeloscleritophora	stated without evidence	Brock and Cooper, 1993
Chancelloriidae	family	belongs to Chancelloriida	stated without evidence	Skovsted, 2006
Chancelloriidae	family	belongs to Chancelloriida	stated with evidence	Parkhaev and Demidenko, 2010

Status (PBDB)

extinct

Taxon Size (PBDB)

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
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
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

Brock G. A., Cooper B.J. (1993) Shelly fossils from the Early Cambrian (Toyonian) Wirrealpa, Arrona Creek, and Ramsay Limestones of South Australia, Journal of Paleontology 67 5, 758-787

Henningsmoen G. (1952) Early middle Cambrian fauna from Rogaland, SW Norway (Paradoxides oelandicus stage = lc α) , Norsk Geologisk Tidsskrift 30, 13-30

Landing E., Bartowski K.E. (1996) Oldest shelly fossils from the Taconic Allochthon and late Early Cambrian sea-levels in eastern Laurentia, Journal of Paleontology 70 5, 741-761

Bengtson S., Hou X. (2001) The integument of Cambrian chancelloriids, Acta Palaeontologica Polonica 46 1, 1-22

Skovsted C. B. (2006) Small shelly fauna from the upper Lower Cambrian Bastion and Ella Island Formations, North-East Greenland, Journal of Paleontology 80 6, 1087-1112

Parkhaev P. Y., Demidenko Y. (2010) Zooproblematica and mollusca from the Lower Cambrian Meishucun section (Yunnan, China) and taxonomy and systematics of the Cambrian small shelly fossils of China, Paleontological Journal 44 8, 883-1161 doi:10.1134/s0031030110080010

Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. - via The Interim Register of Marine and Nonmarine Genera

extinct group - via The Interim Register of Marine and Nonmarine Genera

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!

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