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Scaphelasma
Taxonomy
Scaphelasma was named by Cooper (1956). Its type is Scaphelasma septatum.
It was assigned to Acrotretinae by Cooper (1956); to Scaphelasmatinae by Holmer (1986) and Holmer (1989); to Acrotretida by Sepkoski (2002); and to Scaphelasmatidae by Williams et al. (2000), Popov (2000) and Hansen and Holmer (2011).
It was assigned to Acrotretinae by Cooper (1956); to Scaphelasmatinae by Holmer (1986) and Holmer (1989); to Acrotretida by Sepkoski (2002); and to Scaphelasmatidae by Williams et al. (2000), Popov (2000) and Hansen and Holmer (2011).
Species
S. afflata, S. anomalatum, S. bukowkense, S. lamellosum, S. mica, S. pussillum, S. scutula, S. septatum (type species), S. subquadratum, S. tumidatum
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1956 | Scaphelasma Cooper |
1986 | Scaphelasma Holmer |
1989 | Scaphelasma Holmer |
2000 | Scaphelasma Popov |
2000 | Scaphelasma Williams et al. p. 122 |
2002 | Scaphelasma Sepkoski |
2011 | Scaphelasma Hansen and Holmer |
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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.
G. †Scaphelasma Cooper 1956
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†Scaphelasma afflata Zhang 1995
†Scaphelasma anomalatum Krause and Rowell 1975
†Scaphelasma bukowkense Bednarczyk and Biernat 1978
†Scaphelasma lamellosum Krause and Rowell 1975
†Scaphelasma mica Popov 1975
†Scaphelasma pussillum Popov 1980
†Scaphelasma scutula Popov et al. 1994
†Scaphelasma septatum Cooper 1956
†Scaphelasma septatum rugosum Goryansky 1969
†Scaphelasma subquadratum Biernat 1973
†Scaphelasma tumidatum Krause and Rowell 1975
Diagnosis
No diagnoses are available