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Ampyxoides semicostatus
Taxonomy
Ampyx semicostatus was named by Billings (1865) [Lectotype selected by Whittington 1965]. Its type specimen is GSC 690 (lectotype), a pygidium, and it is a mold.
It was recombined as Raphiophorus semicostatus by Raymond (1925); it was recombined as Ampyxoides semicostatus by Whittington (1965); it was recombined as Lonchodomas semicostatus by Sennikov et al. (2019).
It was recombined as Raphiophorus semicostatus by Raymond (1925); it was recombined as Ampyxoides semicostatus by Whittington (1965); it was recombined as Lonchodomas semicostatus by Sennikov et al. (2019).
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Ampyx semicostatus Billings p. 297 fig. 287 |
| 1925 | Raphiophorus semicostatus Raymond p. 31 figs. Plate 1, fig. 14, 15 |
| 1965 | Ampyxoides semicostatus Whittington p. 319 |
| 2019 | Lonchodomas semicostatus Sennikov 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.
†Ampyxoides semicostatus Billings 1865
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Sandbian to the top of the Whiterockian or 458.40000 to 457.30000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chazyan | Canada (Newfoundland and Labrador) | Ampyx semicostatus (104807) Ampyxoides semicostatus (104861) | |
| Whiterockian | Canada (Newfoundland and Labrador) | Ampyx semicostatus (104809 104810 104811 104813 104817 104856 104857 104864) Ampyxoides semicostatus (104862 104868) | |
| Sandbian | Russian Federation (Siberia) | Lonchodomas semicostatus (206163 206164) |