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Trapezophyllum
Taxonomy
Trapezophyllum was named by Etheridge (1899) [Sepkoski's age data: D Sieg D Fras-m Sepkoski's reference number: 422,680]. It is not extant.
It was assigned to Phacellophyllinae by Hill (1956); to Phillipsastreidae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Phacellophyllinae by Hill (1956); to Phillipsastreidae by Hill (1981); and to Rugosa by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
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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. †Trapezophyllum Etheridge 1899
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Pragian to the top of the Late/Upper Frasnian or 413.02000 to 372.15000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Devonian | USA (Alaska) | T. sp. k (108336) | |
| Pragian - Early/Lower Emsian | Australia (Victoria) | T. elegantulum (10123) | |
| Late/Upper Emsian | China (Guangxi) | T. cystosum (4046 4862) | |
| Frasnian | USA (Iowa) | T. sp. A (83955) | |
| Middle Frasnian | Belgium (Namur) | T. roharti (76634) | |
| Late/Upper Frasnian | USA (Arizona) | T. sp. (40303) |