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Nyctiphruretinae
Taxonomy
Nyctiphruretinae was named by Efremov (1938). It is not extant.
It was assigned to Procolophonidae by Efremov (1938), Kuhn (1946) and Colbert (1946); and to Nyctiphruretidae by Chudinov (1955).
It was assigned to Procolophonidae by Efremov (1938), Kuhn (1946) and Colbert (1946); and to Nyctiphruretidae by Chudinov (1955).
Subtaxa
Synonymy list
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| I. A. Efremov 1938 | Skull relatively short, triangular in shape, with very large orbits. Bones of the skull roof are covered by a radial or pitted sculpture. Lower jaw long and comparatively low with a weak processus retroarticularis. Teeth long and pointed, are set at regular intervals. The palatal surface of the skull is closed by greatly expanded pterygoidea and vomera. The greatest part of the bones of the ventral surface of the skull is covered by shagreen-like teeth (with a rugged surface). The pterygoidea bear larger teeth, set on crests and exposed in almost parallel, slightly divergent rows. Basis cranii elongated, basisphenoideum carrying strong tubera basisphenoidea. Infratemporal fossae short, maxillar condyles somewhat shifted forward, extending beyond the line of the occipital condyle. The limbs with long and slender digits armed with claws. Phalangeal formula, probably, 2. 3. 4. 5. 3. | |
| E. H. Colbert 1946 | Primitive procolophonids. Skull not strongly triangular; quadratojugal and tabular do not bear spikes; jaw articulation at back of skull and otic notch distinct; surface of skull bones sculptured. Teeth sharply pointed and very numerous; numerous teeth on bones of palate. Intercentra present; tail relatively long. Tibiale and fibulare coalesced. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Age range: Kungurian or 279.30000 to 272.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ufimian - Late/Upper Kazanian | Russian Federation (Kirov) | Nycteroleter kassini, Nyctiboetus liteus (80022) | |
| Kungurian | Russian Federation (Perm) | Nyctiboetus kassini (232601) |