# Stephen Hurrell Back to [[Expanding Earth and Plate Tectonics]] **Role:** source of the "Size of Extinct Animals (Hurrel)" curve in Nikolov's [Oct 21 paleogravity chart](https://x.com/NikolovScience/status/2113032497370210552). - Work: "Ancient Life's Gravity and its Implications for the Expanding Earth" (2012) and later palaeogravity notes. These are hosted on his site dinox.org, not published in mainstream peer-reviewed journals ⚠️. - He argues that big Mesozoic animals imply lower gravity. - Mainstream paleobiology explains sauropod size with anatomy and physiology instead ([Sander et al. 2011](https://doi.org/10.1111/j.1469-185X.2010.00137.x)). - Background "UK engineer" ⚠️ (not confirmed this session).