Gaster (1924, 1927, 1929, 1932, 1937, 1941, 1944) - Terebratulina lata Zone
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Biostratigraphical correlation: Inferred to equate with the T. lata Zone of current usage.
Lithostratigraphical correlation: Inferred to equate with the New Pit Chalk Formation and lower Lewes Nodular Chalk Formation of southern England.
Age: Turonian