Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
Praecalcigonellum dolium | ||||
Praecalcigonellum duopylum | ||||
Praecalcigonellum mutterlosei | ||||
Praecalcigonellum polymorphum | ||||
Praecalcigonellum schizosaeptum | ||||
Praecalcigonellum sulcatum | ||||
Praecalcigonellum triangulare |
Taxonomy:
Catalog entries: Praecalcigonellum [no catalog entry yet]
Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): within Zanclean Stage (3.60-5.33Ma, base in Zanclean stage). Data source: Total of range of species in this database
Keupp, H. & Versteegh, G. J. M. (1989). Ein neues systematisches Konzept fuer kalkige Dinoflagellaten-Zysten der Subfamilie Orthopithonelloideae Keupp 1987. Berliner Geowissenschaftliche Abhandlungen. A106(207-219): -. gsReferences:
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Praecalcigonellum compiled by Jeremy R. Young viewed: 23-1-2021
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