12 



TERTIARY AND QUATERNARy PECTENS OF CALIFORNIA. 



The fauna of the Martinez consists essentially of the following species: 



L!M of Martinez formation {lunrr Eoceni) fossils." 



[Those species followed by (L) are found in the lower beds at Martinez; those by (U), upper beds at Martinez; those 

 Ijy (B), beds at Benicia; those by (C), beds at Lower Lake; and those by (P) outcrop on ridge between headwaters of 

 !^an Lorenzo River and Pescadero Creek. San Mateo County.] 



FORAMINIFER.V. 



Fdraiiiinifera nmiimuloid (U). 

 Foraminifera, o 9p. indet. (L). 



ANTHOZOA. 



Flabellum remouilianuin Gabb (LBC). 

 Trochocyathus zitteli Vaughan (L). 



ECHINOIDEA. 



Cidaris (?) spines (P). 



Schizaster lecontei MeJ^'iani (LU). 



BRACHIOPODA. 



Terebratulina tejonensis Stanton (BCP). 

 Terebratiila (?) n. sp. (P). 



PELECYPOIJA. 



Area l)iloba Weaver (LU). 

 Cardiuin coo peri Gal.)b (LU). 

 Crassatellites unioides Stanton (C). 

 CueuUa'a mathewsonii Gabb (LUBC). 

 Glycymeris veatchii Gabb var. major Stanton (C). 

 Leda alteformis Gabb (BC). 

 Leda gabbi Conrad (LUC). 

 Lima niultiradiata Gabb (C). 

 Meretrix sp. (LB). 

 Modiolus merriami Weaver (LU). 

 ilixliolus ornatus Gabb (UC). 

 Xucula truncata Gabb (LUB). 

 Ostrea (ff. ) idriaensis Gal)l) (P). 

 Pecten proavus n. sp. (P). 

 Phacoides turneri Stanton (C). 

 Pholadomya nasuta Gabb (LUB). 

 Plicatula ostreiforrais Stanton (C). 

 Semele (?) n. sp. (P). 

 Solen parallelus Gabb (C). 

 Solen stantoni AVeaver (U). 

 Tapes (a£f. ) qnadrata Gabb (LB). 

 Tellina lequalis Gabb (C). 

 Tellina hoffmanniana Gabb (C). 

 Tellina niartinezensis Weaver (LU). 

 Tellina hornii Gabb (UC). 

 Tellina undulifera Gabb (UB). 

 Teredo sp. (L). 



Thracia karquinesensis Weaver (U). 

 Venericardia planicosta Lamarck var. hornii 

 Gabb (U). 



(;astei!oI"oi).\. 



Actieon lawsoni Weaver (LB). 

 AmpuUina (cf.) striata (i.abb (UBC). 

 Architectonica tnberculata Weaver (U). 

 Brachysphingus liratus Gabb (UBC). 

 Bnllinula subglobosa Weaver (V). 

 Cerithiopsis alternata Gabb (C). 

 Cylichna costata Gabb (LC). 

 Dentaliuni cooperi Gabb (LUC). 

 Dentaliuni stramineinn <tabb (V). 

 Discohelix calit'ornicns Weaver (I^). 

 Ficopsis angulatus Weaver (U). 

 Fusus ai'quilateralis Weaver (L). 

 Galerus excentricus Gabb (C). 

 Helcion (cf. ) dichotouia Gabb (P). 

 Heteroterma gab))i Stanton (LTC). 

 Heteroterma striata Stanton (C). 

 JFIeteroterma trochoidea (iabb (U). 

 Heteroterma, indet. (U). 

 Lunatia hornii Gabb (C). 

 Megatabennus (?) n. sp. (P). 

 Megistostonia striata (iabb ( U. ) 

 Morio tuberculatus Gabb (U). 

 Natica sp. 



Neptunea mucronata Gabl) (L). 

 Peri.ssolax blakei Conrad (B). 

 Perissolax tricarnatus Weaver (LUBC). 

 Serpida (?) sp. (LP). 

 Siphonalia lineata Stanton (LUC). 

 Strepsidnra pachecoensis Stanton (U). 

 Tritonium (cf. ) californicnm Gabb (P). 

 Tritonium eocenicum Weaver (U). 

 Tritonium impre.^snm Weaver (U). 

 Tritonium pulchruni Weaver (U). 

 Turbinella crassitesta Gabb (L). 

 Turritella conica Weaver (U)., 

 Turritella infragraniilata (iabb (T'BC). 

 Turritella niartinezensis Gabb (L). 

 Turritella pachecoensis Stanton (U). 

 Turris sp. indet. (U). 

 Urosyca caudata Gabb (LUBC). 

 Urosyca robusta Weaver (L). 

 Xenophora zitteli Weaver (L). 



CKISTACEA. 



Cancer (U). 

 Crustacean remains 



lacruran (U). 



"Compiled from lists by Merriam, ,1. C, Jour, (ieol., vol. o, 1897, p. 

 U. S. Geol. S\irvey, pt. 1, 18%, p. 102.^); and Weaver. C. E., Bull. Dept. Geol. 



773; Stanton, 

 Univ. of Cal., 



T. W., Seventeenth Ann. Kept, 

 vol. 4, 1905, No. a. pp. 110-111. 



