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Ptychocaulus
Taxonomy
Murchisonia (Ptychocaulus) was named by Perner (1907).
It was reranked as Ptychocaulus by Knight et al. (1960), Sepkoski (2002) and Wagner (2023).
It was assigned to Murchisonia by Perner (1907); to Murchisoniidae by Knight et al. (1960); to Archaeogastropoda by Sepkoski (2002); and to Hormotomidae by Wagner (2023).
It was reranked as Ptychocaulus by Knight et al. (1960), Sepkoski (2002) and Wagner (2023).
It was assigned to Murchisonia by Perner (1907); to Murchisoniidae by Knight et al. (1960); to Archaeogastropoda by Sepkoski (2002); and to Hormotomidae by Wagner (2023).
Synonymy list
Year | Name and author |
---|---|
1907 | Murchisonia (Ptychocaulus) Perner p. 92 |
1960 | Ptychocaulus Knight et al. p. 291 |
2002 | Ptychocaulus Sepkoski |
2023 | Ptychocaulus Wagner p. G369 |
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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. †Ptychocaulus Perner 1907
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†Ptychocaulus bivittata Hall 1852
†Ptychocaulus crumena Perner 1907
†Ptychocaulus magna Karczewski 1980
†Ptychocaulus rodneyi Rohr 1980
†Ptychocaulus verneuili Koken 1889
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Invalid names: Ptychocaulus approximans Perner 1907 [synonym], Ptychocaulus brevicona Perner 1907 [synonym]
Diagnosis
No diagnoses are available