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Archaeoscyphia annulata
Taxonomy
Calycocoelia annulata was named by Rigby (1973). It is not extant. Its type locality is Mann Island, Lake Timiskaming, which is in a Llandovery marine horizon in the Thornloe Formation of Canada.
It was recombined as Archaeoscyphia annulata by Rigby and Chatterton (1999).
It was recombined as Archaeoscyphia annulata by Rigby and Chatterton (1999).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1973 | Calycocoelia annulata Rigby |
| 1999 | Archaeoscyphia annulata Rigby and Chatterton |
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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.
†Archaeoscyphia annulata Rigby 1973
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Whittington et al. 1997, Kiessling 2004 | |||||
Age range: base of the Arenig to the top of the Sheinwoodian or 477.10000 to 430.60000 Ma
Collections (17 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Jeffersonian | USA (Oklahoma) | Archaeoscyphia annulata (80100 80101 80102) | |
| Jeffersonian | USA (Texas) | Archaeoscyphia annulata (56489 80088) | |
| Arenig | USA (Oklahoma) | Archaeoscyphia annulata (80090 80092 80094 80096 80097 80099) | |
| Arenig | USA (Texas) | Archaeoscyphia annulata (80082) | |
| Llandovery | Canada (Quebec) | Calycocoelia annulata (type locality: 120496) | |
| Sheinwoodian | Canada (Northwest Territories) | Archaeoscyphia annulata (121299 121302 121384 121392) |