Fig. 16

Schematic advance of the sea within Utah during the Smithian, based on ammonoid data. a Localities used for the reconstruction (same sites and abbreviations as in Fig. 1, with the addition of other known outcrops where ammonoids were collected; BL Bear Lake area, CS Crittenden Springs, PR Phelan Ranch, WM Wasatch Mountains, HC Hurricane Cliffs; e.g., Hofmann et al. 2013; Hyatt and Smith 1905; Jenks 2007; Jenks et al. 2010; Kummel and Steele 1962; Smith 1932). b Schematic extent of the Smithian open marine depositional facies (based on Carr and Paull 1983; Collinson and Hasenmueller 1978; Paull and Paull 1993). Detailed evolution of the transgression: c from the Vercherites undulatus sp. nov. bed up to the Preflorianites–Kashmirites beds; d during deposition of the Preflorianites–Kashmirites beds and Inyoites beaverensis sp. nov. beds; e during deposition of the Owenites beds; f during deposition of the Anasibirites kingianus beds