Polygyrate

Quick meaning: Polygyrate is an adjective meaning (malacology) Multiply gyrate, like the protoconches of various Gemmula ammonites. .

Meaning

(malacology) Multiply gyrate, like the protoconches of various Gemmula ammonites. .

Example Sentences

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

[...] 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 diagonally cancellated protoconch, but in that genus the adult whorls are pagodiform, strongly keeled[…] polygyrate to paucispiral and almost smooth, and the reversed L-sinus is sometimes rendered U-shaped to subtubular, when restricted above by a parietal tubercle. The Daphnellids are very numerous in both genera and species[…]

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