A new marine vertebrate assemblage from the Late Neogene Purisima Formation in Central California, part II: Pinnipeds and Cetaceans Author Boessenecker, Robert W. text Geodiversitas 2013 2013-12-31 35 4 815 940 http://www.bioone.org/doi/abs/10.5252/g2013n4a5 journal article 6402 10.5252/g2013n4a5 fbfe438c-1eae-40cb-b56f-ff8167b283c2 1638-9395 4538200

TABLE 15. — Faunal comparison of marine mammal assemblages from the Pliocene part of the San Gregorio section of the Purisima Formation (compiled from Boessenecker 2011a; Boessenecker & Smith 2011;this study), San Diego Formation (compiled from Barnes 1973, 1977; Berta & Deméré 1986; Deméré 1994a: table 1; Deméré & Berta 2003; Racicot et al. 2007; Martin 2010; Churchill et al. 2012; and Deméré pers. comm. 2012), Sacaco and Sud-Sacaco horizons of the Pisco Formation (compiled from Muizon 1978, 1981, 1984, 1993; Muizon & Domning 2002; Ansom & Muizon 2013;Lambert et al. 2013),and Yorktown Formations (compiled from Whitmore 1994; Westgate & Whitmore 2002; Kohno & Ray 2008; Koretsky & Ray 2008; Whitmore & Kaltenbach 2008; Gibson & Geisler 2009;Vélez-Juarbe & Pyenson 2012). Extant vs extinct taxon counts for the Purisima Formation include Balaenopteridae gen. et sp.indet. morphotypes 1 and 2, as both of these are demonstrably not from extant Balaenoptera or Megaptera. Abbreviation: SGS, San Gregorio section.

	Purisima Fm. (SGS)	San Diego Fm.	Pisco Fm.	Yorktown Fm.
Pinnipedia	Callorhinus sp.,	Callorhinus gilmorei	Hydrarctos lomasiensis	Callophoca obscura
	cf. C. gilmorei	Dusignathus seftoni	Acrophoca longirostris	Pliophoca etrusca
	Dusignathus sp.,	Valenictus chulavistensis	Hadrokirus martini	Homiphoca capensis
	cf. D. seftoni		Piscophoca pacifica	Phocanella pumila
	Otariidae indet.		Monachinae indet.	Platyphoca vulgaris
				Gryphoca similis
				Ontocetus emmonsi
Mysticeti	cf. Eubalaena sp. 1	Balaena n. sp.	Balaenopteridae indet.	Balaenula sp.
	cf. Eubalaena sp. 2	Balaenidae indet.	Balaenoptera siberi	Balaena ricei
	Balaenoptera bertae	“ Megaptera ” miocaena	Piscocetus sacaco	Balaenoptera sp.
	n. sp.	Balaenoptera davidsonii	Piscobalaena nana	Balaenoptera
	“ Balaenoptera ” cortesi	Balaenoptera sp.		acutorostrata
	“var.” portisi	“ Balaenoptera ” cortesi		Megaptera sp.
	cf. Balaenoptera	“var.” portisi		cf. “ Plesiocetus ”
	Balaenopteridae indet. 1	cf. Parabalaenoptera		Gricetoides aurorae
	Balaenopteridae indet. 2	Balaenopteridae new		Herpetocetus transat-
	Herpetocetus bramblei	genus		lanticus
	Herpetocetus sp.	Herpetocetus n. sp.		Cetotheriidae indet.
Odontoceti	Odontoceti indet.	Delphinus or Stenella	cf. Delphinus	Delphinus sp.
	Delphinidae indet.	Globicephalinae indet.	cf. Stenella	Lagenorhynchus har-
	cf. Globicephalinae indet. Delphinapterinae indet.		Hemisyntrachelus	matuki
	Parapontoporia	Parapontoporia	oligodon	Lagenorhynchus sp.
	sternbergi	sternbergi	Globicephalinae indet.	Stenella rayi
	Phocoenidae indet.	Phocoenidae unnamed	Piscorhynchus	cf. Stenella sp.
	Phocoenidae unnamed	genus 2	aenigmaticus	Tursiops sp.
	genus 1	Phocoenidae unnamed	Piscolithax longirostris	Globicephala sp.
	Phocoenidae unnamed	genus 3	Phocoenidae indet.	Pseudorca sp.
	genus 2	Physeteroidea indet.	Monodontidae indet.	cf. Pontoporia
	cf. Phocoena		Delphinoidea indet.	Bohaskaia monodontoides
	Physeteroidea indet.		Pliopontos littoralis	cf. Monodon
			Odobenocetops	Auroracetus bakerae
			leptodon	Aprixokogia kelloggi
			Odobenocetops	Kogiidae indet.
			peruvianus	Physeteroidea indet.
			Physeteridae indet.	Physeteridae indet.
			Scaphokogia n. sp.	Ninoziphius sp.,
			Kogiidae indet.	cf. N. platyrostris
			Ninoziphius platyrostris	Mesoplodon longirostris
				Ziphius sp., cf. Z. cavi-
				rostris
Sirenia	–	Hydrodamalis cuestae	cf. Nanosiren	–
% Recent	35.3% (N=6)	37.5% (N=6)	16.6% (N=3)	53.1% (N=17)
Genera
# Taxa	21	21	25	35
# Taxa identified 17		16	18	32
to generic level