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Alaoceras
Taxonomy
Alaoceras was named by Ruzhentsev and Bogoslovskaya (1971) [Sepkoski's age data: C Vise-u C Serp-l Sepkoski's reference number: 302,304]. Its type is Alaoceras bajtalense.
It was assigned to Goniatitida by Sepkoski (2002); to Cravenoceratinae by Korn (2006); and to Lyrogoniatitinae by Furnish et al. (2009).
It was assigned to Goniatitida by Sepkoski (2002); to Cravenoceratinae by Korn (2006); and to Lyrogoniatitinae by Furnish et al. (2009).
Species
A. bajtalense (type species), A. parvum
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Alaoceras Ruzhentsev and Bogoslovskaya p. 250 |
| 2002 | Alaoceras Sepkoski |
| 2006 | Alaoceras Korn |
| 2009 | Alaoceras Furnish et al. p. 65 |
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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. †Alaoceras Ruzhentsev and Bogoslovskaya 1971
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†Alaoceras bajtalense Ruzhentsev and Bogoslovskaya 1971
†Alaoceras parvum Ruzhentsev and Bogoslovskaya 1971
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 8 | 6.78 | 4.00 | 8.80 | 7.00 | 1.64 | |
| shell diameter | 8 | 22.3 | 15.5 | 29.0 | 22.5 | 4.80 | |
| shell inflation | 8 | 10.7 | 8.00 | 15.2 | 10.6 | 2.30 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||