A paleomagnetic study was conducted on Triassic and Jurassic red bedded chert from the Inuyama area, central Japan. Paleomagnetic specimens were collected from single chert beds at nine sites within mesoscopic (1~5 m) folds, whose ages were determined by radiolarian fossils. Progressive thermal demagnetization experiments were conducted, and three of the four magnetization components provided tectonic implications. Component D (unblocking temperature of 560¿--680 ¿C), from six sites, passes the fold test with the mesoscopic folds. Paleolatitude was estimated as 12.3¿¿15.6 ¿N or S, 19.0¿¿10.5 ¿N or S, and 25.7¿¿16.7 ¿N or S for 237 Ma, 223.5 Ma, and 210 Ma, respectively. In the case of northern latitude, a northward migration of 5.6¿4.9 cm/yr is estimated between 237 Ma and 210 Ma, with no significant latitudinal migration from 210 Ma to 160 Ma. Component C (unblocking temperature of 350¿--530 ¿C) has normal polarity and is thought to have been acquired as a chemical remanent magnetization carried by magnetite, which was acquired as synfolding magnetization with the Sakahogi Synform. The magnetization is considered to have been acquired through heating in the accretionary wedge during the Cretaceous Normal Superchron (120.5--83.5 Ma). Component B (unblocking temperature of 200¿--350 ¿C) has reversed polarity and is thought to have been acquired as a thermoviscous remanent magnetization after the bending of the Sakahogi Synform. The most probable period of the magnetization acquisition is between C27r and C24r (58--63 Ma) after the emplacement of Late Cretaceous granitic batholiths. ¿ 2001 American Geophysical Union