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Spiriferellina tricosa
Taxonomy
Spiriferellina tricosa was named by Cooper and Grant (1976). Its type specimen is USNM 154698f, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1976 | Spiriferellina tricosa Cooper and Grant p. 2707 figs. Pl 710, figs 24-82 |
2005 | Spiriferellina tricosa Sour-Tovar et al. p. 31 figs. 4h-4l |
2016 | Spiriferellina tricosa Torres-MartÃnez et al. p. 78 figs. 4.14-4.17 |
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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.
†Spiriferellina tricosa Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 27 | 2.66 | 0.600 | 9.80 | 3.00 | 2.93 |
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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 Asselian to the top of the Capitanian or 298.90000 to 259.51000 Ma
Collections (21 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Asselian | Mexico | Spiriferellina tricosa (117974) | |
Kungurian | USA (Texas) | Spiriferellina tricosa (43491 43492 43495 43513 43514 43515 43517 81638 105687 106286) | |
Kungurian | Mexico (Chiapas) | Spiriferellina tricosa (183478) | |
Roadian | USA (Texas) | Spiriferellina tricosa (43518 43598 81639 101781 101783 102611 102616 106109) | |
Capitanian | Turkey | Spiriferellina tricosa (107264) |