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Tetranota bidorsata
Taxonomy
Bucania bidorsata was named by Hall (1847). It is not extant. It is the type species of Tetranota.
It was recombined as Tetranota bidorsata by Ulrich and Scofield (1897), Weller (1903), Raymond (1908), Grabau and Shimer (1909), Knight (1941), Knight and Bridge (1944), Wilson (1951), Knight et al. (1960), Steele and Sinclair (1971), Wahlman (1992), Wagner (2023).
It was recombined as Tetranota bidorsata by Ulrich and Scofield (1897), Weller (1903), Raymond (1908), Grabau and Shimer (1909), Knight (1941), Knight and Bridge (1944), Wilson (1951), Knight et al. (1960), Steele and Sinclair (1971), Wahlman (1992), Wagner (2023).
Subspecies
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Bucania bidorsata Hall p. 186 figs. pl. 40 f. 8a-9 |
| 1883 | Bucania bidorsata Chamberlin |
| 1884 | Bucania bidorsata Walcott |
| 1889 | Bucania bidorsata Lesley |
| 1897 | Tetranota bidorsata Ulrich and Scofield pp. 877 - 878 figs. pl. 65 f. 10-18 |
| 1903 | Tetranota bidorsata Weller |
| 1908 | Tetranota bidorsata Raymond pp. 197 - 198 figs. pl. 50 f. 5 |
| 1909 | Tetranota bidorsata Grabau and Shimer |
| 1941 | Tetranota bidorsata Knight |
| 1944 | Tetranota bidorsata Knight and Bridge |
| 1951 | Tetranota bidorsata Wilson pp. 30 - 31 figs. pl. 4 f. 1-2 |
| 1960 | Tetranota bidorsata Knight et al. p. 180 figs. f. 96.4 |
| 1971 | Tetranota bidorsata Steele and Sinclair pp. 19 - 20 figs. pl. 10 f. 4, 15 |
| 1992 | Tetranota bidorsata Wahlman pp. 145 - 146 figs. pl. 21 f. 1-14; pl. 22 f. 1-10 |
| 2023 | Tetranota bidorsata Wagner p. 438 |
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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.
†Tetranota bidorsata Hall 1847
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†Bucania bidorsata minor Ulrich and Scofield 1897
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Hendy 2009, Kiessling 2004 | |||||
Age range: base of the Early/Lower Llanvirn to the top of the Maysvillian or 468.00000 to 449.60000 Ma
Collections (35 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chazyan | USA (New York) | Bucania bidorsata (56184 172299 172324 172348) | |
| Early/Lower Llanvirn | Norway (Trøndelag) | Tetranota bidorsata (191062) | |
| Caradoc | USA (Ohio) | Tetranota bidorsata (64476) | |
| Turinian | Canada (Ontario) | Tetranota bidorsata (104422 185429 185449 185451 185462 185476) | |
| Ashbyan | USA (Tennessee) | Tetranota bidorsata (5327) | |
| Blackriveran | Canada (Ontario) | Tetranota bidorsata (55999) | |
| Blackriveran | USA (Tennessee) | Tetranota bidorsata (5328 5329 5331) | |
| Kirkfieldian | USA (Illinois, Iowa) | Tetranota bidorsata (23623 23644) | |
| Rocklandian - Kirkfieldian | USA (Minnesota) | Tetranota bidorsata (23558) | |
| Rocklandian - Kirkfieldian | USA (Illinois, Iowa) | Tetranota bidorsata (23622) | |
| Shermanian | USA (Minnesota) | Tetranota bidorsata (23579 23584) | |
| Shermanian | USA (Illinois, Iowa) | Tetranota bidorsata (23651 23653 23656 23659 23664 23667 23668 23670) | |
| Edenian | USA (Illinois, Iowa) | Tetranota bidorsata (23678) | |
| Edenian | USA (Minnesota) | Tetranota bidorsata (23588) | |
| Edenian | USA (Ohio) | Tetranota bidorsata (101446) | |
| Maysvillian | Canada (Manitoba) | Tetranota bidorsata (174050) |