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Qilianotryma
Taxonomy
Qilianotryma was named by Xu (1979) [Sepkoski's age data: O m Sepkoski's reference number: ZR84]. It is not extant. Its type is Qilianotryma mirabile.
It was assigned to Atrypida by Sepkoski (2002); and to Spirigerininae by Popov et al. (1999), Williams et al. (2002).
It was assigned to Atrypida by Sepkoski (2002); and to Spirigerininae by Popov et al. (1999), Williams et al. (2002).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Qilianotryma Xu |
| 1999 | Qilianotryma Popov et al. p. 632 |
| 2002 | Euroatrypa Sepkoski |
| 2002 | Orthocarina Sepkoski |
| 2002 | Qilianotrypa Sepkoski |
| 2002 | Qilianotryma Williams et al. p. 1432 |
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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. †Qilianotryma Xu 1979
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†Qilianotryma mirabile Xu 1979
†Qilianotryma striatum Xu 1979
†Qilianotryma suspectum Nikiforova et al. 1982
Invalid names: Euroatrypa [synonym], Orthocarina [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L.E. Popov et al. 1999 | Atrypinidae with dorsibiconvex, transverse shell; ventral beak strongly curved dorsally; posterior commissure wide, broadly rounded, anterior commissure parasulcate; ventral sulcus and dorsal median fold originating at the umbonal area and sharpened by low, angular plications on flanks; radial ornament fine, equally multicostellate with accentuated median rib in ventral valve; ventral interior with hinge teeth strong; dental plates rudimentary or absent; dorsal interior with very fine median ridge and pair of oblique submedian ridges; spiralia with up to six whorls and with apices directed dorso-medially, jugum incomplete, located posteriorly. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: Cautleyan or 449.20000 to 448.80000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Katian | Kazakhstan | Q. suspectum (185960 185961 204073 204074 204075 204076 204091 204092) | |
| Katian | Kazakhstan (Abai) | Q. sp. (235978) | |
| Ashgill | Russian Federation (Taimyr) | Q. tajmyrica (37638) | |
| Cautleyan | Kazakhstan (Central) | Q. suspectum (52737) |