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Protocycloceras furtivum
Taxonomy
Orthoceras furtivum was named by Billings (1865).
It was recombined as Protocycloceras furtivum by Ruedemann (1906) and Ulrich et al. (1944).
It was recombined as Protocycloceras furtivum by Ruedemann (1906) and Ulrich et al. (1944).
Synonymy list
Year | Name and author |
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1906 | Protocycloceras furtivum Ruedemann |
1944 | Protocycloceras furtivum Ulrich et al. |
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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.
†Protocycloceras furtivum Billings 1865
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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: Cassinian or 482.30000 to 470.00000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Cassinian | USA (New York) | Orthoceras furtivum, Protocycloceras furtivum (42782) | |
Cassinian | Canada (Ontario) | Protocycloceras furtivum (171894) |