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Hemizygopteridae
Taxonomy
Hemizygopteridae was named by Zalessky (1955). Its type is Hemizygopteron.
It was synonymized subjectively with Permaeschnidae by Carpenter (1992).
It was assigned to Protanisoptera by Zalessky (1955); and to Ditaxineuroidea by Huguet et al. (2002) and Bechly (2007).
It was synonymized subjectively with Permaeschnidae by Carpenter (1992).
It was assigned to Protanisoptera by Zalessky (1955); and to Ditaxineuroidea by Huguet et al. (2002) and Bechly (2007).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1955 | Hemizygopteridae Zalessky p. 632 |
| 2002 | Hemizygopteridae Huguet et al. pp. 541, 553-554 |
| 2007 | Hemizygopteridae Bechly |
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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. †Hemizygopteridae Zalessky 1955
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Huguet et al. 2002 | Bechly (1996, 1998, in press) indicated that there is no known autapomorphy of this family.We failed to find one in our phylogenetic analysis, because of the incomplete state of preservation of the available material. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Kiessling 2004, Bush and Bambach 2015 | |||||
Age range: Kungurian or 279.30000 to 272.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian - Wordian | France (Languedoc) | Bansheepteron gonfaronensis (192423) | |
| Kungurian | Russian Federation (Suksun) | Ditaxineurella stigmalis (116641) Hemizygopteron uralense (108206) | |
| Kungurian | France | Bansheepteron gonfaronensis (117604) | |
| Kungurian | Russian Federation | Hemizygopteron uralense (155819) |