Jasmundi - acutirostris Zone

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Definition: From first appearance of Gisilina jasmundi to immediately below the first appearance of Rugia acutirostris (Johansen & Surlyk, 1990).

Zone not proved in Norfolk, but inferred to occupy an unexposed interval in the Norfolk succession (Johansen & Surlyk, 1990).

Retrieved from ‘https://earthwise.bgs.ac.uk/index.php?title=Jasmundi_-_acutirostris_Zone&oldid=1617’