(Tab. 2) Occurence of microfossils in Late Jurassic sediments of DSDP Hole 11-99A, Cat Gap Area, western Atlantic Ocean

R = rare (1-5 specimens), C = common (6-20 specimens), A = abundante (significant occurence). Samples 11-99A-7-CC, 11-99A-8-1,140-142, 11-99A-9-CC, 11-99A-10-CC, 11-99A-12-CC no microfossils, between core 3 and 4 and sample 11-99A-6-CC intense contamination with younger faunasR代表稀有（1~5份标本），C代表常见（6~20份标本），A代表丰富（大量产出）。样本11-99A-7-CC、11-99A-8-1、140-142、11-99A-9-CC、11-99A-10-CC、11-99A-12-CC未检出微化石；岩心3与岩心4之间以及样本11-99A-6-CC处存在强烈的年轻动物群污染。