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Aegoceras (Oistoceras)
Taxonomy
Oistoceras was named by Buckman (1911) [Sepkoski's age data: J Plie-l]. It is not extant.
It was reranked as Androgynoceras (Oistoceras) by Wittler and Roth (2003); it was reranked as Aegoceras (Oistoceras) by Howarth (2013).
It was assigned to Liparoceratidae by Howarth (1955), Howarth (1956) and Smith and Tipper (1996); to Ammonoidea by Sepkoski (2002); to Androgynoceras by Wittler and Roth (2003); and to Aegoceras by Howarth (2013).
It was reranked as Androgynoceras (Oistoceras) by Wittler and Roth (2003); it was reranked as Aegoceras (Oistoceras) by Howarth (2013).
It was assigned to Liparoceratidae by Howarth (1955), Howarth (1956) and Smith and Tipper (1996); to Ammonoidea by Sepkoski (2002); to Androgynoceras by Wittler and Roth (2003); and to Aegoceras by Howarth (2013).
Subtaxa
Aegoceras (Oistoceras) colubrinum, Aegoceras (Oistoceras) curvicorne, Aegoceras (Oistoceras) orbignyi, Aegoceras (Oistoceras) samontaensis, Androgynoceras (Oistoceras) angulatum, Androgynoceras (Oistoceras) figulinum, Oistoceras compressum, Oistoceras crescens, Oistoceras wrighti (syn. Aegoceras curvicornum)
Synonymy list
| Year | Name and author |
|---|---|
| 1911 | Oistoceras Buckman |
| 1955 | Oistoceras Howarth |
| 1956 | Oistoceras Howarth |
| 1996 | Oistoceras Smith and Tipper p. 53 |
| 2002 | Oistoceras Sepkoski |
| 2003 | Androgynoceras (Oistoceras) Wittler and Roth p. 22 |
| 2013 | Aegoceras (Oistoceras) Howarth p. 58 |
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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.
Subg. †Aegoceras (Oistoceras) Buckman 1911
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†Aegoceras (Oistoceras) colubrinum Spath 1938
†Aegoceras (Oistoceras) curvicorne Schloenbach 1863
†Aegoceras (Oistoceras) orbignyi Spath 1938
†Aegoceras (Oistoceras) samontaensis Meister 1986
†Androgynoceras (Oistoceras) angulatum Quenstedt 1856
†Androgynoceras (Oistoceras) figulinum Simpson 1855
†Oistoceras compressum Smith and Tipper 1996
†Oistoceras crescens Hyatt 1867
Diagnosis
No diagnoses are available