The upper bajocian and lower bathonian (jurassic) ammonite faunas of Oaxaca, Mexico and west-tethyam affinities /
Westermann, Gerd Ernst Gerold, 1927-.
The upper bajocian and lower bathonian (jurassic) ammonite faunas of Oaxaca, Mexico and west-tethyam affinities / G. E. G. Westermann. - 1981. - vi, 62 p. ; 23 cm. - Paleontologia mexicana ; 46. .
Bibliografia: p. 37-38.
QE807 / .A5 W48
The upper bajocian and lower bathonian (jurassic) ammonite faunas of Oaxaca, Mexico and west-tethyam affinities / G. E. G. Westermann. - 1981. - vi, 62 p. ; 23 cm. - Paleontologia mexicana ; 46. .
Bibliografia: p. 37-38.
QE807 / .A5 W48
