Author · 1916
William Heyden Easton
Invertebrate paleontology.
William Heyden Easton
Invertebrate paleontology.
Carboniferous formations and faunas of central Montana.
William Heyden Easton
Carboniferous formations and faunas of central Montana.
Corals from the Chouteau and related formations of the Mississippi Valley Region
William Heyden Easton
Corals from the Chouteau and related formations of the Mississippi Valley Region
Pitkin limestone of northern Arkansas
William Heyden Easton
Pitkin limestone of northern Arkansas
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