Fig. 46From: Smithian ammonoid faunas from Utah: implications for Early Triassic biostratigraphy, correlation and basinal paleogeographyScatter diagrams of H, W and U, and H/D, W/D and U/D for Arctoceras tuberculatum. The single complete measured specimen from the Pahvant Range is indicated by white symbols (Preflorianites–Kashmirites beds). Other data in grey are from Crittenden Springs, Nevada (“Meekoceras gracilitatis zone”; Kummel and Steele 1962)Back to article page