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2. Depositional environments of carbonates of Calabar Flank, Southeastern Nigeria;Fayose;J. Nig. Min. Geosci. Soc.,1978
3. Salaziceras nigerianum n.sp. from southeastern Nigeria. Faunal evidence for an open seaway between the northern and southern Atlantic in late Albian times;Forster;Neues Jahrb. Geol. Paläontol. Monatsh.,1979
4. Subtidal algal stromatolites from the Florida back reef environment;Frost;J. Sediment. Petrol.,1974
5. Distribution, morphology and accretion rate of Recent subtidal algal stromatolites, Bermuda;Gebelein;J. Sediment. Petrol.,1969