  Claims of paleodata periodicity are many and so controversial that
superimposing Phanerozoic (0-541 My) mass-extinction periods renders life on
Earth impossible. This period hunt coincided with geochronology modernization
tying geological timescales to orbital frequencies, enabling separation of
astronomical signals from harmonics. I thus show on diverse data (geomagnetic
polarity, cratering, extinction episodes) as a proxy of planetary paleodynamics
that many-body subharmonic entrainment induces Earth's resonant response to
astronomical forcing so that 2{\pi}-phase-shifted axial precession p=26 ky and
its Pi=2{\pi}p/i; i=1...n harmonics get resonantly responsible for paleodata
periodicity. This quasiperiodic nature of strata is co-triggered by a
p'/4-lockstep to p'=41-ky obliquity. For verification, residuals analysis after
suppressing 2{\pi}p (and so Pi) in GPTS-95 polarity reversals timescale's
calibration at the South Atlantic Anomaly, extending to end-Campanian (0-83
My), successfully detected weak signals of Earth-Mars planetary resonances
reported previously from older epochs. The only residual signal is 26.5-My
Rampino period - carrier wave of crushing deflections and transformative
reversals. While the Earth's (2{\pi}p, Pi) resonant response is the long-sought
energy transfer mechanism of Milankovitch theory, fundamental system properties
- 2{\pi}-phase-shift, 1/4 lockstep to a forcer, and discrete time translation
symmetry (multiplied/halved periods) - typical of a quantum time crystal,
appear macroscopic. The surprising cross-scale outcome confirms planetary
precession is a cataclysmic geodynamic phenomenon claimed previously as the
mechanism for Earth's reversals and expansion. As the Earth-Moon-Sun resonant
system sets the tone for all subscale resonances like the quantum, quantum
physics in any interpretation is fundamentally different and variable outside
Earth's vicinity.
