Title: New or formerly poorly known, biochronologically and paleobiogeographically important gastroplitinid and cleoniceratinid (Ammonitida) taxa from middle Albian rocks of mid-western and Arctic Canada
First published: 1980
Subjects: Paleontology, Ammonoidea
Places: Canada
Time periods: Jurassic
LC classification: QE185 .A42 no. 79-22, QE807.A5 .A42 no. 79-22