Proavus

PROAVUS. Great grandfather. This term is employed in making genealogical tables.

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1993) considered the upper part of the Acerocarina Superzone an equivalent of the Cordylodus proavus conodont Zone.
Ediacaran and Cambrian stratigraphy in Estonia: an updated review/Ediacara ja Kambriumi stratigrafia Eestis: ajakohastatud ulevaade
Obolus apollinis appears in he uppermost Cambrian (Cordylodus proavus Biozone) and occurs in abundance in the Cambrian-Ordovician boundary beds of NW Russia, forming the Obolus phosphorite deposits commercially mined near Kingisepp (Krasilnikova & Ilyin 1989).
Apatite varieties in the shell of the Cambrian lingulate brachiopod Obolus apollinis Eichwald/Apatiidi erimid Kambriumi brahhiopoodi Obolus apollinis Eichwald kojas
Muller (1973) described and illustrated Cambrian (Furongian) conodonts, including Cordylodus proavus Muller, 1959, from the uppermost part of the Mila Formation Member 4 in the Mila-Kuh section.
First record of the Ordovician fauna in Mila-Kuh, eastern Alborz, northern Iran/Ordoviitsumi fauna esmaleid Pohja-Iraanis (Mila-Kuh, idapoolne Alborz)
The index species Cordylodus proavus Miller is quite numerous and represented by different morphological types in the three lower samples.
The stratotype of the Orasoja Member (Tremadocian, Northeast Estonia): lithology, mineralogy, and biostratigraphy/Orasoja kihistiku (Tremadocian, Kirde-Eesti) stratotuup: litoloogia, mineraloogia ja biostratigraafia
According to Bogolepova & Gee (2004), the Khmelev Regional Stage in the South Urals includes the upper Furongian Cordylodus proavus Zone, whereas the Kidryas Regional Stage corresponds to the lower Tremadocian (Fig.
Trilobites and biofacies in the Early-Middle Ordovician of Baltica and a brief comparison with the Yangtze Plate/Baltika paleolaama Vara- ja Kesk-Ordoviitsiumi trilobiidid ning biofaatsiesed ja pogus vordlus Yangtze laamaga

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