The use of marine magnetic anomalies (stripes of normal and reversed polarity locked into oceanic crust) to determine seafloor spreading rates and reconstruct past plate positions and continental drift is a foundational, textbook concept in geophysics and plate tectonics, requiring no citation.
The claim states that ocean floor magnetic anomalies enable the reconstruction of ancient continental positions. This is a classic, foundational principle of marine geophysics and plate tectonics (Vine-Matthews-Morley hypothesis). It is common knowledge within Earth sciences, taught in introductory geology courses worldwide, and does not depend on contestable or cutting-edge research findings for its basic validity. Therefore, per the instructions for common knowledge, no citations are needed and index lists are left empty.