Meaning of virgatotome | Babel Free

Definitions

Having multiple secondary ribs which branch off successively in front of each primary rib (resulting in a shape like ᚠ), like the ribs of Zaraiskites ammonites.

Examples

“[...] gyrate furcation, and often a tendency to become fasciculate or virgatotome; secondary ribs obsolescent in some [...] polygyrate ribs and intercalatory secondaries. Microconchs 100-112 mm. in diameter with following rib densities[…]”

“... polygyrate or bidichotomous to fasciculate (rarely virgatotome) ribs, more loosely spaced and coarser. External whorls of macroconch forms with dichotomous to polygyrate ribs[…]”

CEFR level