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Zygobeyrichia
Taxonomy
Zygobeyrichia was named by Ulrich (1916) [Sepkoski's age data: S u D Emsi-u Sepkoski's reference number: 423]. It is not extant.
It was assigned to Beyrichiidae by Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
It was assigned to Beyrichiidae by Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1916 | Zygobeyrichia Ulrich |
| 1961 | Zygobeyrichia Benson et al. |
| 2002 | Zygobeyrichia Sepkoski |
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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. †Zygobeyrichia Ulrich 1916
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Alvarez et al. 2008 | |||||
Age range: base of the Wenlock to the top of the Late/Upper Emsian or 432.90000 to 393.47000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery - Wenlock | Canada (Northwest Territories) | Z. sp. (188782) | |
| Wenlock | Canada (Northwest Territories) | Z. sp. (188784) | |
| Ludlow - Pridoli | USA (West Virginia) | Z. incipiens (41728) Z. ventripunctata (41717) Z. ventripunctata, Z. tonolowayensis (41719 41720) Z. ventripunctata, Z. tonolowayensis, Z. virginia, Z. ventricornis (41729) | |
| Ludlow - Pridoli | USA (Maryland) | Z. incipiens, Z. ventricornis (41171) Z. ventripunctata, Z. tonolowayensis (41641 41645 41646) | |
| Pridoli | USA (Maryland) | Z. sp. (490 24916) | |
| Pridoli | USA (New York) | Z. regina (491) | |
| Early/Lower Emsian | Germany | Z. sp. (26904) | |
| Emsian | Germany (Niedersachsen) | Z. schmidti (38350) | |
| Emsian | Germany (Hessen) | Z. schmidti (38349) | |
| Late/Upper Emsian | Luxembourg | Z. subcylindrica (233203) |