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Stenoscisma amoenum
Taxonomy
Stenoscisma amoenum was named by Cooper and Grant (1976). Its type specimen is USNM 152271a, a shell (Articulated shell), and it is not a trace fossil. Its type locality is USNM708q, Skinner Ranch Fm. (Decie Ranch Mb.), Hill 5021, Glass Mountains, which is in an Artinskian reef, buildup or bioherm limestone in the Skinner Ranch Formation of Texas.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1976 | Stenoscisma amoenum Cooper and Grant p. 2084 figs. Pl 554, figs 1-14 |
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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 amoenum 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 | 3 | 8.83 | 8.40 | 9.20 | 8.90 | 0.404 |
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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 Changhsingian or 290.10000 to 252.17000 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Artinskian | USA (Texas) | Stenoscisma amoenum (type locality: 43588) | |
Changhsingian | China (Chongqing) | Stenoscisma amoenum (94984) | |
Changhsingian | China (Guizhou) | Stenoscisma amoenum (117481) |