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Trochonema coxi
Taxonomy
Trochonema coxi was named by Wilson (1938). It is not extant. Its type locality is Akpatok Island, 460’ above sea level, Ungava Bay, Hudston Strait, which is in a Richmondian carbonate limestone in the Akpatok Formation of Canada.
Synonymy list
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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.
†Trochonema coxi Wilson 1938
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order | |||||
| References: Bambach et al. 2007, Hendy 2009 | |||||
Age range: base of the Edenian to the top of the Richmondian or 451.00000 to 445.50000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Ordovician | Canada (Manitoba) | Trochonema umbilicata (28184) | |
| Wildernessian | Canada (Northwest Territories) | Trochonema coxi (26951) | |
| Edenian | Canada (Nunavut) | Trochonema umbilicatum (24225) | |
| Edenian - Richmondian | Canada (Manitoba) | Trochonema coxi (13654 13655 13656 13657) | |
| Maysvillian | Canada (Manitoba) | Trochonema coxi (14120) | |
| Richmondian | Canada (Northwest Territories) | Trochonema coxi (type locality: 27193 104998 188769) | |
| Richmondian | Canada (Nunavut) | Trochonema coxi (360 169387) | |
| Richmondian - Gamachian | Canada (Manitoba) | Trochonema coxi (23011 23018 23023 23024 23026 23031) |