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Oligotresium
Taxonomy
Oligotresium was named by Gabb and Horn (1862). It is not extant.
It was reranked as Lunulites (Oligotresium) by Canu and Bassler (1920); it was synonymized subjectively with Lunulites by Bassler (1953).
It was assigned to Lunulites by Canu and Bassler (1920); and to Lunulitidae by Cheetham (1962).
It was reranked as Lunulites (Oligotresium) by Canu and Bassler (1920); it was synonymized subjectively with Lunulites by Bassler (1953).
It was assigned to Lunulites by Canu and Bassler (1920); and to Lunulitidae by Cheetham (1962).
Species
Synonymy list
Year | Name and author |
---|---|
1862 | Oligotresium Gabb and Horn p. 139 |
1920 | Lunulites (Oligotresium) Canu and Bassler |
1962 | Oligotresium Cheetham p. 325 |
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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.
G. †Oligotresium Gabb and Horn 1862
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†Oligotresium contigua Lonsdale 1845
†Oligotresium howei Cheetham 1962
†Oligotresium vicksburgensis Conrad 1848
Diagnosis
No diagnoses are available