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Tristychiidae
Taxonomy
Tristychiidae was named by Moy-Thomas (1936). It is not extant.
It was assigned to Hybodontoidea by Ginter et al. (2010); and to Hybodontiformes by Nelson et al. (2016).
It was assigned to Hybodontoidea by Ginter et al. (2010); and to Hybodontiformes by Nelson et al. (2016).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1936 | Tristychiidae Moy-Thomas |
| 2010 | Tristychiidae Ginter et al. p. 97 |
| 2016 | Tristychiidae Nelson et al. p. 56 |
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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.
Fm. †Tristychiidae Moy-Thomas 1936
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Wagner 2023 | |||||
Age range: base of the Asbian to the top of the Brigantian or 340.00000 to 330.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asbian | United Kingdom (Scotland) | Tristychius sp. (230479) | |
| Brigantian | United Kingdom (Scotland) | Tristychius arcuatus (131671) |