00850cam a22002651 4500 gs 58000027 DLC 20260227111406.0 900516s1957 nr abf b 000 0 eng c gs 58000027 (OCoLC)21544834 U.S. Geol. Survey. Libr. TxU TxU DLC premarc QE807.A5 B3 564.53 Barber, W. Lower Turonian ammonites from north-eastern Nigeria. [Lagos] Published by Authority of the Federal Govt. of Nigeria, 1957. 86 p. illus., plates, maps (part fold.) diagrs., tables. 26 cm. Bulletin (Geological Survey of Nigeria) no. 26 Bibliography: p. 63-64. Ammonoidea. Paleontology Cretaceous. Paleontology Nigeria. 29206 29206