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Gravicalymene quadrata
Taxonomy
Calymene quadrata was named by King (1923). Its type specimen is GSM 31742,3, an exoskeleton (external and internal moulds of articulated exoskeleton), and it is a 3D body fossil.
It was recombined as Flexicalymene quadrata by Shirley (1936), Hiller (1981); it was recombined as Sthenarocalymene quadrata by Siveter (1977); it was recombined as Gravicalymene quadrata by Price (1982), Smith and Ebach (2020).
It was recombined as Flexicalymene quadrata by Shirley (1936), Hiller (1981); it was recombined as Sthenarocalymene quadrata by Siveter (1977); it was recombined as Gravicalymene quadrata by Price (1982), Smith and Ebach (2020).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1923 | Calymene quadrata King pp. 504-505 figs. pl. 26, figs 1, 2 |
| 1936 | Flexicalymene quadrata Shirley p. 418 |
| 1977 | Sthenarocalymene quadrata Siveter pp. 387, 391-2 |
| 1981 | Flexicalymene quadrata Hiller |
| 1982 | Gravicalymene quadrata Price pp. 59 - 60 figs. Plate 1, figs 1-8, 10, 12, PI. 2, fig. 13, PI. 3, figs 13, 16. |
| 2020 | Gravicalymene quadrata Smith and Ebach p. 497 |
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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.
†Gravicalymene quadrata King 1923
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Rawtheyan or 448.80000 to 445.20000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cautleyan - Rawtheyan | United Kingdom (Wales) | Flexicalymene quadrata (8290 8291) | |
| Rawtheyan - Hirnantian | United Kingdom (Wales) | Flexicalymene quadrata (8292) |