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Spirophyton
Taxonomy
Spirophyton was named by Hall (1863). Its type is Spirophyton typum.
It was assigned to Ichnofossils by Hantzschel (1975).
It was assigned to Ichnofossils by Hantzschel (1975).
Species
S. typum (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1863 | Spirophyton Hall |
| 1975 | Spirophyton Hantzschel |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. Hantzschel 1975 | Similar to spirally coiled forms of Zoophycos but differing by smaller size and by circular outline of laminae (spreite) which are also composed of lamellae; laminae (=whorls) not tending to lobate forms, 1 to 4 mm thick, sloping outward from axis, then flattening and bent upward to margin in dextrogyrate or sinistral spirals, curving ridges on laminae convex in the sense of the rotation; diameter of last whorl up to about 10 cm, central axis J-shaped. |
Measurements
No measurements are available
No ecological data are available
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Emsian | Germany (Eifel) | S. eifeliense (24623) | |
| Emsian | Brazil (Piaui) | S. sp. (37101 37102) | |
| Emsian | Canada (Quebec) | S. sp. (233202) | |
| Emsian - Eifelian | Brazil (Para) | S. sp. (37138) | |
| Emsian - Eifelian | Brazil (Piaui) | S. sp. (37120 37121 37135) | |
| Givetian | Brazil (Para) | S. sp. (37176) | |
| Givetian | USA (New York) | S. sp. (111343) | |
| Permian | Canada (Yukon) | S. sp. (25741) |