dc:description"FIG. 2. — Stratigraphy of the Purisima Formation: A, Stratigraphic column of the San Gregorio section of the Purisima Formation (in meters), showing stratigraphic position of UCMP vertebrate localities, dated ash beds, diatom floras, and species of Carcharodon; thickness measurements start over above missing section in uppermost part due lack of overlapping strata; epoch and stage boundaries marked as \"?\" are estimated; modified from Boessenecker (2011a); Pliocene-Pleistocene boundary after Hilgen et al. (2012); B, photograph of 3-4 m thick ash within Purisima Formation at mouth of San Gregorio Creek correlated with 2.5 Ma Ishi Tuff (Powell et al.2007); C, trace fossils in pervasively bioturbated sandstone,Purisima Formation,mouth of San Gregorio Creek; D, swaley cross-stratified sandstone, mouth of San Gregorio Creek. Abbreviations: Qt, Pleistocene terrace deposits; Tp, Purisima Formation; C, claystone; St, siltstone; Ss, sandstone. Scale bars: A, 2 m; B, C, 10 cm.";
dc:description"FIG. 42. — Cranium of Phocoenidae unnamed genus 2 (UCMP 219503);A, dorsal view;B, right lateral view;C, left lateral view;D, ventral view. Scale bar: 5 cm.";
dc:description"FIG. 43. — Mandibles of Phocoenidae unnamed genus 2 (UCMP 219076); A, dorsal view; B, left lateral view; C, right lateral view; D, oblique anterolateral view. Scale bar: 3 cm.";
dc:description"FIG. 44.— Interpretive line drawings of skull (UCMP 219503) and mandible (UCMP 219076) of Phocoenidae unnamed genus 2: A-D, skull in dorsal (A), ventral (B), right lateral (C) and left lateral (D) views;E, F, mandibles in left lateral (E) and dorsal (F) views.Scale bar:10 cm.";
dc:description"FIG. 45. — Reconstruction of skull (UCMP 219503) and mandible (UCMP 219076) of Phocoenidae unnamed genus 2: A-C, skull in lateral (A), dorsal (B) and ventral (C) views; D, E, mandible in lateral (D) and dorsal (E) views. Scale bar: 10 cm.";
