crenulate

(redirected from crenulations)
Also found in: Dictionary, Thesaurus, Medical.

crenulate

[′kren·əl‚āt]
(biology)
Having a minutely crenate margin.
References in periodicals archive ?
Left valve with six primary rows of long, straight, narrow spines; 1-5 rows of interstitial spines between the primary rows; right valve with frilly commarginal ribs around the small attachment area; exterior color white, orange, or coral, more uncommonly red-brown or peach; internal marginal color band usually near hinge only, occasionally around entire margin; hinge teeth white, diagonal to hinge line in left valve (except in large and old specimens, that have more perpendicular teeth); adductor muscle scar shallow to deep; internal marginal crenulations coarse and length upto 156 mm.
3], dockwise-younging superposed crenulations and mesoscopic folds formed in discrete zones (Mosher 1983; Mosher and Berryhill 1991; Burks and Mosher 1996).
16), weak crenulations on caput, more conspicuous anteriolaterally and near eye region, elsewhere absent or inconspicuous.
In comparison to other plesiosaur teeth, these specimens are most similar to the teeth of elasmosaurs: they have a smooth outer surface and crenulated inner surface, with crenulations that extend nearly to the tip of the tooth.
Topolineaments are portrayed in the topography as: surface elevations, rapid changes in slope, surface crenulations, or valley thalwegs.
The origin of these crenulations is due not to heat, but to greater evaporation and carbon dioxide loss from thin liquid-water films flowing over slight surface protrusions.
Nevertheless, hole S03-295 provided valuable geologic information, supporting the fold interpretation by intersecting fold crenulations in the area of the projected fold nose.
This schistosity is sub-parallel to the axial planes of matrix crenulations and isoclinal folds outlined by quartz veins, and is itself openly folded and locally crenulated, with incipient development of an axial plane foliation.