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Palaeophycus
Taxonomy
Palaeophycus was named by Hall (1847). It is considered to be a form taxon. Its type is Palaeophycus tubularis.
It was assigned to Algae by Knowlton (1919); and to Ichnofossils by Hantzschel (1975).
It was assigned to Algae by Knowlton (1919); and to Ichnofossils by Hantzschel (1975).
Species
P. alternatus, P. beverleyensis, P. heberti, P. limaciformis, P. sulcatus, P. tubularis (type species)
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Palaeophycus Hall |
| 1859 | Aulacophycos Massalongo |
| 1919 | Palaeophycus Knowlton |
| 1975 | Palaeophycus 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.
G. †Palaeophycus Hall 1847
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†Palaeophycus alternatus Pemberton and Frey 1982
†Palaeophycus beverleyensis Billings 1862
†Palaeophycus heberti da Saporta 1872
†Palaeophycus limaciformis Lewis 1880
†Palaeophycus sulcatus Miller and Dyer 1878
†Palaeophycus tubularis Hall 1847
Invalid names: Aulacophycos Massalongo 1859 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. Hantzschel 1975 | Ichnogenus showing a wide range of morphology; cylindrical or subcylindrical burrows, usually sinuous, oriented more or less obliquely to bedding; commonly unbranched, though may be branched occasionally; surface of walls smooth or rarely with faint longitudinal striae; up to about 20 cm or more in length; 3 to 15 mm in diameter; commonly intersecting one another. |