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Leiocephalikon problematicum
Taxonomy
Amblyodon problematicum was named by Dawson (1882). Its type specimen is RM 3061-10, a mandible (fragments of lower jaw with 10 teeth), and it is a 3D body fossil. Its type locality is Coal Mine Point; Divison 4, Section XV, coal-group 15, which is in a Westphalian A mire/swamp sandstone/coal in the Joggins Formation of Canada. It is the type species of Leiocephalikon, Amblyodon.
It was recombined as Leiocephalikon problematicum by Carroll and Gaskill (1978).
It was recombined as Leiocephalikon problematicum by Carroll and Gaskill (1978).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1882 | Amblyodon problematicum Dawson p. 644 figs. Pl. 40 |
| 1902 | Amblyodon problematicum Hay p. 416 |
| 1934 | Leiocephalikon eutheton Steen p. 491 |
| 1978 | Leiocephalikon problematicum Carroll and Gaskill p. 72 |
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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.
†Leiocephalikon problematicum Dawson 1882
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Invalid names: Leiocephalikon eutheton Steen 1934 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: Westphalian A or 318.70000 to 316.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Westphalian A | Canada (Nova Scotia) | Leiocephalikon eutheton, Amblyodon problematicum (28069) Leiocephalikon problematicum (86946) |