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Stenoscisma problematicum
Taxonomy
Stenoscisma problematicum was named by Cooper and Grant (1976). Its type specimen is USNM 154581g, 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 | Stenoscisma problematicum Cooper and Grant p. 2104 figs. Pl 570, figs 1-44 |
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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.
†Stenoscisma problematicum 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 | 8 | 13.2 | 5.20 | 19.0 | 16.2 | 4.90 |
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Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
References: Nesnidal et al. 2013, Aberhan et al. 2004 |
Collections (11 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Sakmarian | USA (Texas) | Stenoscisma problematicum (43572) | |
Artinskian | USA (Texas) | Stenoscisma problematicum (43540 43559 75887 75936 105721 105763 106011) | |
Kungurian | USA (Texas) | Stenoscisma problematicum (75861 105724 106032) |