Westermann, Gerd E.G.
Ammonite biochronology and biogeography of the Circum-Pacific middle Jurassic - Buenos Aires s.e. 1981 - pp. 555-557 - v.2 .
AMMONOIDEA
BIOGEOGRAFIA
CUENCAS SEDIMENTARIAS
JURASICO
PALEONTOLOGÍA
CIRCUM-PACIFICO
56(8)/V84|1
Ammonite biochronology and biogeography of the Circum-Pacific middle Jurassic - Buenos Aires s.e. 1981 - pp. 555-557 - v.2 .
AMMONOIDEA
BIOGEOGRAFIA
CUENCAS SEDIMENTARIAS
JURASICO
PALEONTOLOGÍA
CIRCUM-PACIFICO
56(8)/V84|1