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Siamnautilus ruchae
Taxonomy
Siamnautilus ruchae was named by Ishibashi et al. (1994). It is a 3D body fossil. Its type locality is Huai Mae Phlung, Doi Pha Phlung 20F, Lampang Province, which is in a Changhsingian marine shale in the Huai Tak Formation of Thailand. It is the type species of Siamnautilus.
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Siamnautilus ruchae Ishibashi et al. p. 33 figs. Pl 3, figs 1,2; text-fig 7 |
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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.
†Siamnautilus ruchae Ishibashi et al. 1994
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell diameter | 1 | 90.0 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Changhsingian or 254.17000 to 252.17000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | Thailand | Siamnautilus ruchae (type locality: 42776) |