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Eoplacognathus
Taxonomy
Eoplacognathus was named by Hamar (1966) [Sepkoski's age data: O Aren-u O Cara-l Sepkoski's reference number: 313].
It was assigned to Conodontophorida by Sepkoski (2002); and to Polyplacognathidae by Sweet (1988), Stouge and Bagnoli (1999), Mestre and Heredia (2013), Mestre and Heredia (2020).
It was assigned to Conodontophorida by Sepkoski (2002); and to Polyplacognathidae by Sweet (1988), Stouge and Bagnoli (1999), Mestre and Heredia (2013), Mestre and Heredia (2020).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Eoplacognathus Hamar |
| 1988 | Eoplacognathus Sweet p. 186 |
| 1999 | Eoplacognathus Stouge and Bagnoli p. 156 |
| 2002 | Eoplacognathus Sepkoski |
| 2013 | Eoplacognathus Mestre and Heredia p. 47 |
| 2020 | Eoplacognathus Mestre and Heredia p. 738 |
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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. †Eoplacognathus Hamar 1966
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†Eoplacognathus pseudoplanus Viira 1972
†Eoplacognathus suecicus Bergström 1971
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Aberhan 1992 | |||||
Age range: base of the Aluoja to the top of the Early/Lower Llandeilo or 465.90000 to 458.20000 Ma
Collections (27 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Darriwilian | China (HeBei) | E. sp. (7955) | |
| Darriwilian | Russian Federation (Gorny Altai) | E. pseudoplanus (194972) | |
| Darriwilian | Russian Federation (Siberia) | E. pseudoplanus (206166) E. sp. (9228) | |
| Darriwilian | Canada (British Columbia) | E. suecicus (177959) | |
| Darriwilian | Kazakhstan | E. sp. (220540) | |
| Darriwilian | Argentina | E. n. sp. (210458) E. n. sp., E. pseudoplanus (210460) E. pseudoplanus (210453) E. suecicus (210668) | |
| Kunda - Aseri | Russian Federation (Kostroma oblast) | E. suecicus (235820) | |
| Early/Lower Llanvirn | Argentina | E. sp. (8747 8870) E. suecicus (9026) | |
| Llanvirn | Argentina | E. suecicus (8873) | |
| Llanvirn | Canada (Northwest Territories) | E. suecicus (25753) | |
| Llanvirn | China (JiangSu) | E. sp. (7932) | |
| Aluoja - Aseri | Sweden | E. pseudoplanus (210643 210644 210645 210646 210647 210650 210651 210652) | |
| Early/Lower Llandeilo | Argentina | E. sp. (8868) | |
| Late/Upper Llanvirn | China (Hubei) | E. sp. (4712) |