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Greenlandoceratidae
Taxonomy
Greenlandoceratidae was named by Shimizu and Obata (1935). It is considered to be a form taxon.
It was assigned to Michelinoceratida by Flower (1962); to Discosorida by Crick (1981); and to Actinocerida by Pohle et al. (2022).
It was assigned to Michelinoceratida by Flower (1962); to Discosorida by Crick (1981); and to Actinocerida by Pohle et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Greenlandoceratidae Shimizu and Obata |
| 1962 | Greenlandoceratidae Flower p. 342 |
| 1981 | Greenlandoceratidae Crick p. 229 |
| 2022 | Greenlandoceratidae Pohle et al. p. 21 |
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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.
Fm. †Greenlandoceratidae Shimizu and Obata 1935
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G. †Greenlandoceras Shimizu and Obata 1935
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Invalid names: Greenlandoceras Shimizu and Obata 1935 [objective synonym]
G. †Pseudokionoceras
G. †Standardoceras
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: Richmondian or 449.60000 to 445.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Richmondian | USA (Ohio) | Richmondoceras brevicameratum (372 88124) | |
| Richmondian | USA (Indiana) | Richmondoceras brevicameratum (87957) |