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Chancelloria
Taxonomy
Chancelloria was named by Walcott (1920) [Sepkoski's age data: ]. Its type is Chancelloria eros. It is the type genus of Chancelloriidae.
It was assigned to Chancelloridae by Henningsmoen (1952); to Problematica by Duan (1984); to Chancelloriida by Sepkoski (2002); to Metazoa by Bambach et al. (2007); and to Chancelloriidae by Brock and Cooper (1993), Landing and Bartowski (1996), Parkhaev and Demidenko (2010), Kouchinsky et al. (2011) and Kouchinsky et al. (2017).
It was assigned to Chancelloridae by Henningsmoen (1952); to Problematica by Duan (1984); to Chancelloriida by Sepkoski (2002); to Metazoa by Bambach et al. (2007); and to Chancelloriidae by Brock and Cooper (1993), Landing and Bartowski (1996), Parkhaev and Demidenko (2010), Kouchinsky et al. (2011) and Kouchinsky et al. (2017).
Species
Actinoites diclinatus, Actinoites simplex, Actinoites tetractina, Actinoites universalis, C. arida, C. coronacea, C. eros (type species), C. iranica, C. obliqua, C. odontodes, C. pentacta, C. primaria, C. racemifundis, C. sardinica, C. simmetrica, C. spinulosa, C. symmetrica, Fangxianites petalinus, Fangxianites schizolomus
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1920 | Chancelloria Walcott |
| 1952 | Chancelloria Henningsmoen |
| 1984 | Chancelloria Duan p. 165 |
| 1984 | Actinoites Duan p. 166 |
| 1984 | Fangxianites Duan p. 168 |
| 1984 | Actinoites Duan p. 169 |
| 1985 | Stellaria Vassiljeva p. 120 |
| 1988 | Monospinites Vassiljeva and Sayutina p. 197 |
| 1993 | Chancelloria Brock and Cooper p. 764 |
| 1993 | Stellispinella Vassiljeva and Sayutina p. 113 |
| 1996 | Chancelloria Landing and Bartowski p. 755 |
| 2002 | Chancelloria Sepkoski |
| 2007 | Chancelloria Bambach et al. p. S83 |
| 2010 | Chancelloria Parkhaev and Demidenko p. 897 |
| 2011 | Chancelloria Kouchinsky et al. p. 146 |
| 2017 | Chancelloria Kouchinsky et al. p. 384 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Chancelloria Walcott 1920
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†Chancelloria arida Duan 1984
†Chancelloria coronacea Vassiljeva 1985
†Chancelloria eros Walcott 1920
†Chancelloria iranica Mostler and Mosleh-Yazdi 1976
†Chancelloria obliqua Gravestock et al. 2001
†Chancelloria odontodes Duan 1984
†Chancelloria pentacta Rigby 1978
†Chancelloria primaria Missarzhevsky 1989
†Chancelloria racemifundis Bengston 1990
†Chancelloria sardinica Mostler 1985
†Chancelloria simmetrica Vassiljeva 1985
†Chancelloria spinulosa Vassiljeva 1985
†Chancelloria symmetrica Vassiljeva 1985
Invalid names: Actinoites Duan 1984 [synonym], Fangxianites Duan 1984 [synonym], Monospinites Vassiljeva and Sayutina 1988 [synonym], Stellaria Vassiljeva 1985 [synonym], Stellispinella Vassiljeva and Sayutina 1993 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Y. Parkhaev and Y. Demidenko 2010 | "Sclerites composed of 2 to 20 clavate radial spines, surrounding vertical or inclined central spine. Radial spines lie in basal plane or form angle with it. Sometimes two or three central spines present." | |
| A. Kouchinsky et al. 2011 | "Radially symmetrical sclerites, with or without central rays, and with 4–12 lateral rays (after Bengtson et al. 1990, p. 51)." |