Title: Some American Jurassic A̲m̲m̲o̲n̲i̲t̲e̲s̲ of the genera Q̲u̲e̲n̲s̲t̲e̲d̲t̲i̲c̲e̲r̲a̲s̲, C̲a̲r̲d̲i̲o̲c̲e̲r̲a̲s̲, and A̲m̲o̲e̲b̲o̲c̲e̲r̲a̲s̲, family C̲a̲r̲d̲i̲o̲c̲e̲r̲a̲t̲i̲d̲a̲e̲
First published: 1919
Subjects: Ammonoidea
LC classification: QE75 .P9 no. 118