Saerichnites Billings 1866


DESCRIPTION: Bedding plane trace comprising single parallel rows of tracks, semicircular or subquadrate pits or pustules, average 2.5 cm diameter, more or less regularly distributed on bedding planes. The tracks can be somewhat curved in outline on outer margin, anterior and posterior margins nearly straight, bottom nearly flat.

BEHAVIOR(S): Fodinichnia, agrichnia

ENVIRONMENTAL SETTINGS: Deep marine, turbidites

POSSIBLE TRACEMAKERS: marine worms

GEOLOGIC RANGE: Ordovician-recent

ADDITIONAL REFERENCES: Emended by Uchman, 1998. Chamberlain, C.K., 1977; Uchman, 1995

REMARKS: This ichnogenus is typified by S. abruptus Billings (Billings, 1866; Hantzschel, 1975). Former diagnosis, provided by Uchman (1995), related this ichnogenus to sub-vertical shafts.