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Polonoceras
Taxonomy
Polonoceras was named by Dybczynski (1913) [Sepkoski's age data: D Fame-l Sepkoski's reference number: 1042]. It is not extant. Its type is Polonoceras planum.
It was reranked as Tornoceras (Polonoceras) by Glenister (1958).
It was assigned to Tornoceras by Glenister (1958); to Goniatitida by Sepkoski (2002); and to Aulatornoceratinae by Korn and Klug (2002) and Korn (2006).
It was reranked as Tornoceras (Polonoceras) by Glenister (1958).
It was assigned to Tornoceras by Glenister (1958); to Goniatitida by Sepkoski (2002); and to Aulatornoceratinae by Korn and Klug (2002) and Korn (2006).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1913 | Polonoceras Dybczynski |
| 1958 | Tornoceras (Polonoceras) Glenister p. 93 |
| 2002 | Polonoceras Korn and Klug p. 164 |
| 2002 | Polonoceras Sepkoski |
| 2006 | Polonoceras Korn |
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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. †Polonoceras Dybczynski 1913
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†Polonoceras baikuense Sheng 1999
†Polonoceras delepinei Petersen 1975
†Polonoceras dux Becker 1993
†Polonoceras mensinki Becker 1993
†Polonoceras planum Dybczynski 1913
†Polonoceras subundulatum Frech 1887
Diagnosis
No diagnoses are available