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Amphigeisina
Taxonomy
Amphigeisina was named by Bengtson (1976) [Sepkoski's age data: Cm Atda-u Cm mMid Sepkoski's reference number: 885,1006]. It is not extant. Its type is Hertzina danica. It is the type genus of Amphigeisinidae.
It was assigned to Amphigeisinidae by Clark et al. (1981); to Protoconodontida by Sepkoski (2002); and to Protoconodonta by Kouchinsky et al. (2011).
It was assigned to Amphigeisinidae by Clark et al. (1981); to Protoconodontida by Sepkoski (2002); and to Protoconodonta by Kouchinsky et al. (2011).
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Amphigeisina Bengtson |
| 1981 | Amphigeisina Clark et al. p. W111 |
| 2002 | Amphigeisina Sepkoski |
| 2011 | Amphigeisina Kouchinsky et al. p. 150 |
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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.
G. †Amphigeisina Bengtson 1976
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†Amphigeisina danica Poulsen 1966
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Invalid names: Protohertzina yudomica Demidenko 2006 [synonym]
†Amphigeisina renae Missarzhevsky and Mambetov 1981
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Bambach et al. 2007 | |||||
Collections (30 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tommotian | United Kingdom (Warwickshire) | A. danica (10253) | |
| Atdabanian | Kazakhstan | A. renae (99299 99300 99301 99302 99303 99316 99317 99357) | |
| Atdabanian | United Kingdom (England) | A. danica (79933) | |
| Atdabanian | China (Shaanxi) | A. danica (57691) | |
| Atdabanian | Kyrgyzstan | A. renae (99328 99329) | |
| Branchian | United Kingdom (England) | A. danica (79931 79932 79935 79937 79939) A. n. sp., A. danica (79928) | |
| Botomian | Kazakhstan | A. renae (99362) | |
| Lenian | Sweden | A. danica (87124 87183 87184) | |
| Amgan | Russian Federation (Siberia) | A. danica (110820 110821 110822) | |
| Solvan | Russian Federation (Siberia) | A. danica (49429 49430 110823 110824) |