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Zygatrypa
Taxonomy
Zygatrypa is a genus. It is not extant.
It was assigned to Atrypida by Sepkoski (2002); and to Anazyginae by Williams et al. (2002).
It was assigned to Atrypida by Sepkoski (2002); and to Anazyginae by Williams et al. (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Zygatrypa Sepkoski |
| 2002 | Zygatrypa Williams et al. p. 1440 |
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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. †Zygatrypa
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†Zygatrypa exigua Lindström 1861
†Zygatrypa stenoparva Boucot et al. 1988
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013, Meyer et al. 2009 | |||||
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Alexandrian - Ontarian | Canada (Québec) | Z. mica (24596) | |
| Aeronian | Canada (Quebec) | Z. sp. (5784 5785 184854) | |
| Telychian | Sweden (Gotland) | Rhynchonella exigua (192342) | |
| Telychian - Sheinwoodian | Sweden (Gotland) | Rhynchonella exigua (13523 13674) | |
| Sheinwoodian | Sweden (Gotland) | Rhynchonella exigua (13524 13675) | |
| Sheinwoodian | Canada (Nunavut) | Z. stenoparva (26003 26009 26014) | |
| Wenlock | USA (California) | Z. stenoparva (226732) | |
| Homerian | Canada (Northwest Territories) | Z. paupera (497) |