Great crateriform ring of mountains.
"A Naturalist's Voyage Round the World" by Charles Darwin
Crateriform: like a shallow funnel or deep bowl.
"Explanation of Terms Used in Entomology" by John. B. Smith
Crateriform; g, saccate; h, infundibuliform; j, napiform; k, fusiform; l, stratiform.
"The Elements of Bacteriological Technique" by John William Henry Eyre
Newton (12) is the deepest of the great crateriform chasms on the moon.
"Astronomy with an Opera-glass" by Garrett Putman Serviss
Stigma broadly 2-lipped or crateriform.
"The Manual of the Botany of the Northern United States" by Asa Gray