Chancelloria

Short description: Extinct genus of Cambrian animals

Chancelloria

Temporal range: Early Cambrian–lower Upper Cambrian

PreЄ

Fossil Chancelloria pentacta displayed at the Paleontological Research Institution, NY
Scientific classification
Kingdom:  | Animalia
Order:  | †Chancelloriida
Family:  | †Chancelloriidae
Genus:  | †Chancelloria
Walcott, 1920
Species

* C. coronacea Walcott, 1920 (type)
* Gravestock et al., 2001 C. drusilla
* Walcott, 1920 C. libo
* Walcott, 1920 C. yorkensis
* Walcott, 1920 Rusconi, 1954
* Zhuravleva and Korde, 1955 Romanenko, 1968
* Sdzuy, 1969[1] Rigby, 1978[2]
* Duan, 1984 Vassiljeva, 1985
* Vassiljeva, 1985 Yun et al., 2019[3]
* C. primaria C. impar
* C. iranica C. arida
* C. sardinica C. spinulosa
* Missarzhevsky, 1989 Moore, 2019
* C. cruceana C. lenaica
* C. altaica C. maroccana
* Mostler and Mosleh-Yazdi, 1976 Duan, 1984
* Mostler, 1985 Vassiljeva, 1985
* Bengtson, 1990 Moore, 2019
* Peng et al., 2023 C. australilonga
* C. lilioides C. obliqua
* C. zhaoi C. racemifundis
* C. eros C. pentacta
* C. odontodes C. symmetrica

Chancelloria is a genus of early animals known from the Middle Cambrian Burgess Shale, the Comley limestone,[4] the Wheeler Shale,[2] the Bright Angel Shale[5] and elsewhere (such as Iran). It is named after Chancellor Peak. It was first described in 1920 by Charles Doolittle Walcott, who regarded them as one of the most primitive groups of sponges.[6] However, they are currently thought to be member of the group Chancelloriidae. 178 specimens of Chancelloria are known from the Greater Phyllopod bed, where they comprise 0.34% of the community.[7]

## References

1. ↑ Sdzuy, K. (1969). "Unter- and mittelkambrische Porifera. (Chancellorida und Hexactinellida)". Paläontologische Zeitschrift 43 (3–4): 115–147. doi:10.1007/bf02987647.
2. ↑ 2.0 2.1 Keith Rigby, J. (1978). "Porifera of the Middle Cambrian Wheeler Shale, from the Wheeler Amphitheater, House Range, in Western Utah". Journal of Paleontology 52 (6): 1325–1345.
3. ↑ Hao Yun; Glenn A. Brock; Xingliang Zhang; Luoyang Li; Diego C. García-Bellido; John R. Paterson (2019). "A new chancelloriid from the Emu Bay Shale (Cambrian Stage 4) of South Australia". Journal of Systematic Palaeontology 17 (13): 857–867. doi:10.1080/14772019.2018.1496952.
4. ↑ Reid, R. E. H. (2009). "Occurrence of Chancelloria Walcott in the Comley Limestone". Geological Magazine 96 (3): 261–262. doi:10.1017/S0016756800060271.
5. ↑ Elliott, D. K.; Martin, D. L. (1987). "Chancelloria, an enigmatic fossil from the Bright Angel Shale (Cambrian) of Grand Canyon, Arizona". Journal of the Arizona-Nevada Academy of Science 21 (2): 67–72.
6. ↑ Walcott, C. D. (1920). "Cambrian geology and paleontology IV:6—Middle Cambrian Spongiae". Smithsonian Miscellaneous Collections 67: 261–364. https://biodiversitylibrary.org/page/29838882.
7. ↑ Caron, Jean-Bernard; Jackson, Donald A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS 21 (5): 451–65. doi:10.2110/palo.2003.P05-070R. Bibcode: 2006Palai..21..451C.

## External links

* "Chancelloria eros". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011. http://burgess-shale.rom.on.ca/en/fossil-gallery/view-species.php?id=37.

Wikidata ☰ Q5070807 entry

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