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Wellerella tetrahedra
Taxonomy
Wellerella tetrahedra was named by Dunbar and Condra (1932) [Pugnax osagensis Girty 1915 U.S. Geological Survey Bulletin 544 p. 81 pl. 10 f. 11-11c]. It is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1932 | Wellerella tetrahedra Dunbar and Condra p. 291–292 figs. pl. 37 f. 11-16; txt. f. 16 |
1961 | Wellerella tetrahedra Hoare p. 31–32 figs. pl. 4 f. 1–5 |
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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.
†Wellerella tetrahedra Dunbar and Condra 1932
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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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 Kasimovian to the top of the Asselian or 307.00000 to 295.50000 Ma
Collections (14 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Desmoinesian | USA (Kansas) | Wellerella tetrahedra (926 956) | |
Desmoinesian | USA (Utah) | Wellerella tetrahedra (59854 59855) | |
Desmoinesian | USA (Missouri) | Wellerella tetrahedra (70134 70297 70309 70379 70382 70487) | |
Kasimovian - Gzhelian | USA (Utah) | Wellerella tetrahedra (39988 39989) | |
Virgilian | USA (Illinois) | Wellerella tetrahedra (49830) | |
Asselian | USA (Kansas) | Wellerella tetrahedra (798) |