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Cyclolorenzella
Taxonomy
Cyclolorenzella was named by Kobayashi (1960) [Sepkoski's age data: Cm uMid-u Cm Dres-l Sepkoski's reference number: 459,464]. It is not extant.
It was synonymized subjectively with Fenghuangella by Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Diceratocephalidae by Hong et al. (2003), Park et al. (2008).
It was synonymized subjectively with Fenghuangella by Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Diceratocephalidae by Hong et al. (2003), Park et al. (2008).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Cyclolorenzella Kobayashi |
| 2002 | Cyclolorenzella Sepkoski |
| 2003 | Cyclolorenzella Hong et al. |
| 2008 | Cyclolorenzella Park et al. p. 252 |
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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. †Cyclolorenzella Kobayashi 1960
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†Cyclolorenzella acalle Walcott 1905
†Cyclolorenzella caijiapingensis Yang 1978
†Cyclolorenzella convexa Resser and Endo 1937
†Cyclolorenzella distincta Zhang 1985
†Cyclolorenzella hebeiensis Zhu and Wittke 1989
†Cyclolorenzella parabola Resser and Endo 1937
†Cyclolorenzella uniforma Zhu and Wittke 1989
†Cyclolorenzella yentaiensis Chu 1959
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T.-Y. Park et al. 2008 | Cranidium wider than long; frontal area short, 20–25% of cranidial length, with a distinctive preglabellar boss outlined by parallel-sided furrows emerging from antero-lateral corners of glabella, not differentiated into preglabellar field and anterior border; glabella slender, 30–40% of palpebral cranidial width, with obsolete glabellar furrows; occipital ring with a long and stout median spine; palpebral lobes located at glabellar mid-point. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Ayusokkanian or 499.50000 to 497.00000 Ma
Collections (35 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| St Davids | North Korea | C. sp. (49082) | |
| Guzhangian | South Korea | C. convexa (227379) | |
| Guzhangian | China (Henan) | C. sp. (129207) C. yentaiensis (129208) | |
| Guzhangian | China (Hunan) | C. taoyuanensis (128931) | |
| Guzhangian | China (Jiangsu) | C. caijiapingensis (127370) Lorenzella parabola (129924) | |
| Guzhangian | China (Nei Mongol) | C. distincta (130254) C. parabola (129775) | |
| Guzhangian | China (Liaoning) | Lorenzella parabola (126764 129880 129885 129886) Lorenzella yentaiensis (126903) | |
| Guzhangian | China (Shanxi) | C. parabola (129809 129812) Lorenzella parabola (129927) | |
| Guzhangian | China | C. rotundata (233820) | |
| Guzhangian | China (Hebei) | C. hebeiensis (129583) C. parabola, C. uniforma (129584) C. sp. (129585 129588) | |
| Guzhangian | China (Shaanxi) | C. acalle (124915) | |
| Ayusokkanian | Kazakhstan | C. conifrons (118245 118250) C. spinosa (118177 118179 118182 118186 118235 118238 118239 118240 118241 118244) |