Yakutatia Hantzschel 1962


DESCRIPTION: Burrow system consisting of approximately two symmetrical spirals with side branches arranged in a Cyrtograptus-like pattern, varying in thickness from 2-6 mm, bifurcating 1-3 times forming 1 to 1.7 volutions about acuminate inner extremity, outer end obtuse.

BEHAVIOR(S): Fodinichia (sediment foraging)

ENVIRONMENTAL SETTINGS: Marine flysch deposits

POSSIBLE TRACEMAKERS: Cretaceous-Tertiary (Seilacher, 1977)

GEOLOGIC RANGE: Marine worms

ADDITIONAL REFERENCES: Seilacher, 1977

REMARKS: One of the radiating graphoglyptids