Table 1. Aggregate vertebrate assemblage from the Santa Cruz section of the Purisima Formation.
| Chondrichthyes | Odontoceti |
| Alopias sp.P | Albireonidae indet.M |
| Cetorhinus maximus | Denebola sp. |
| Carcharinus sp.P | Delphinapterinae indet. |
| Carcharocles megalodon M | Delphinidae indet. |
| Carcharodon hastalis M | Globicephalinae indet. 1 |
| Carcharodon hubbelli | Globicephalinae indet. 2P |
| Carcharodon carcharias P | Parapontoporia sp. |
| Dasyatis sp. | Parapontoporia wilsoni |
| Galeorhinus sp.P | Phocoenidae n. g. 1 |
| Hexanchus sp. | Phocoenidae n. g. 2 |
| Isurus oxyrhincus | aff. Phocoenidae |
| Lamna sp. | cf. Piscolithax sp.M |
| Myliobatis sp. | Physeteroidea indet. |
| Raja sp. | Mysticeti |
| Raja sp. cf. R. binoculata P | Balaenidae indet. |
| Osteichthyes | Balaenoptera sp., cf. B. bertae |
| Acipenser sp. | Balaenopteridae n. g.P |
| Anarrhichthys sp. | Balaenopteridae indet. |
| Citharichthys stigmaeus | “Balaenoptera” cortesi var. portisi |
| Epinephelus sp. | Eubalaena sp. |
| Oncorhynchus rastrosus | Herpetocetus bramblei |
| Paralichthys californicus | Herpetocetus n. sp.P |
| Parophrys vetulus | “Megaptera” miocaena |
| Sciaenidae indet. | Nannocetus sp.M |
| Seriola sp. | Parabalaenoptera sp. |
| Aves | Sirenia |
| Alca sp. | Dusisiren dewana M |
| Brachyramphus sp. | Hydrodamalinae indet.M |
| Cerorhinca sp. | Artiodactyla |
| Mancalla vegrandis | Camelidae indet. |
| Mancalla lucasi | Rodentia |
| Miomancalla wetmorei M | Castor californicus |
| Morus humeralis | Perissodactyla |
| Phalacrocorax sp. | Equidae indet.P |
| Puffinus sp. | |
| Synthliboramphus sp. | |
| Pinnipedia | |
| Callorhinus sp., cf. C. gilmorei P | |
| Dusignathus santacruzensis M | |
| Gomphotaria sp.M | |
| cf. Imagotaria M | |
| Thalassoleon macnallyae | |
| Valenictus sp.P |
Compiled from Barnes (1976), Perry (1977B), Repenning and Tedford (1977), Domning (1978), Barnes (1985), Boessenecker and Geisler (2008), Whitmore and Barnes (2008), Boessenecker et al. (2009), Boessenecker and Perry (2011), Boessenecker et al. (2013), N. A. Smith (personal communication, 2011) and Boessenecker and Perry (unpublished data). M and P denote occurrences restricted to the late Miocene and Pliocene parts of the Santa Cruz section of the Purisima Formation (respectively).