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Atrypacea (disused)
Taxonomy
Atrypacea was named by Gill (1871).
It was assigned to Telotremata by Oraspold (1956); and to Atrypidina by Boucot and Johnson (1964) and Mitchell (1977).
It was assigned to Telotremata by Oraspold (1956); and to Atrypidina by Boucot and Johnson (1964) and Mitchell (1977).
Synonymy list
| Year | Name and author |
|---|---|
| 1871 | Atrypacea Gill |
| 1956 | Atrypacea Oraspold |
| 1964 | Atrypacea Boucot and Johnson p. 7 |
| 1977 | Atrypacea Mitchell |
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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.
Superfm. †Atrypacea Gill 1871
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Diagnosis
No diagnoses are available
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: base of the Hirnantian to the top of the Frasnian or 445.20000 to 372.20000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician - Late/Upper Ordovician | USA (Kentucky) | Atrypacea sp. (10720) | |
| Ashgill - Llandovery | Canada (New Brunswick) | Atrypacea indet. (11451) | |
| Hirnantian | China (Sichuan) | Atrypacea indet. (25735) | |
| Lochkovian | Australia (New South Wales) | Atrypacea indet. (25705 25707) | |
| Emsian | China (Guangxi) | Atrypacea indet. (27420 27506) | |
| Eifelian - Givetian | Afghanistan (Ghazni) | Atrypacea indet. (84663) | |
| Givetian | Afghanistan (Vardak) | Atrypacea indet. (84627) | |
| Givetian | United Kingdom (England) | Atrypacea indet. (38408) | |
| Givetian | Afghanistan (Ghazni) | Atrypacea indet. (74993) | |
| Frasnian | Afghanistan (Ghazni) | Atrypacea indet. (84704) |