The elevation to color bindings are the work of C. Scotese. Data from Scotese, C. R., Vérard, C., Burgener, L., Elling, R. P., & Kocsis, A. T. (2025). The Cretaceous World: Plate Tectonics, Paleogeography, and Paleoclimate. Geological Society, London, Special Publications, 544(1), SP544–2024..
data(paleomap)A calibramp-class list with 3 numerics:
col: The color levels as hexadecimal RGB values.
breaks: The boundaries for the individual levels.
mid: The mid values of the color levels.