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Brachiosvalbardia
Taxonomy
Brachiosvalbardia was named by Ceccolini and Cianferoni (2023). Its type is Chonetes capitolinus.
It was assigned to Svalbardiinae by Ceccolini and Cianferoni (2023).
It was assigned to Svalbardiinae by Ceccolini and Cianferoni (2023).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Svalbardia Barkhatova |
| 2000 | Svalbardia Williams et al. p. 415 |
| 2002 | Svalbardia Sepkoski |
| 2023 | Brachiosvalbardia Ceccolini and Cianferoni p. 88 |
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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. †Brachiosvalbardia Ceccolini and Cianferoni 2023
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†Brachiosvalbardia capitolina Toula 1875
†Brachiosvalbardia cracowensis Etheridge 1872
†Brachiosvalbardia narelliensis Archbold 1981
†Brachiosvalbardia thomasi Archbold 1981
†Brachiosvalbardia toulai Dunbar 1955
Invalid names: Svalbardia Barkhatova 1970 [replaced]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 1 | 4.00 | - | - | - | - | |
| valve height | 13 | 0.201 | 0.100 | 2.20 | 0.100 | 0.868 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Artinskian to the top of the Wuchiapingian or 290.10000 to 254.14000 Ma
Collections (53 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | Australia (Western Australia) | Svalbardia narelliensis (85031) | |
| Artinskian | Australia (Queensland) | Chonetes cracowensis (131809) Svalbardia cracowensis (66208 66209 66210 66215) | |
| Kungurian | Australia (Western Australia) | Svalbardia narelliensis (95045 95046 101411) Svalbardia thomasi (83624 101271) | |
| Kungurian | Russian Federation (Nenets Autonomous Okrug) | Paeckelmannia capitolina (126202 126242 126243) | |
| Kungurian | Russian Federation | Svalbardia capitolina (86037 109481 109986 110010 110029) | |
| Kungurian - Capitanian | Svalbard and Jan Mayen | Svalbardia capitolina (95254) | |
| Roadian | USA (Alaska) | Tornquistia sp. (102556 102557 102562) | |
| Roadian | Canada (Nunavut) | Chonetes capitolinus (11089) | |
| Wordian | USA (Alaska) | Tornquistia sp. (102526 102541 102542 102543 102554 102555 102564 102567 102568 102569 102571 102575 102576 102578 102579) Tornquistia toulai (102537) | |
| Wuchiapingian | Svalbard and Jan Mayen | Paeckelmannia toulai (114080) | |
| Wuchiapingian | Greenland | Paeckelmannia toulai (86565 107364 107442 107443 107445 107447 107455 107458 107459 107518 107548) | |
| Wuchiapingian - Changhsingian | Svalbard and Jan Mayen | Svalbardia capitolina (95231) |