﻿58 
  

  

  SANTA 
  MAKIA 
  OIL 
  DISTRICT, 
  CALIFORNIA. 
  

  

  The 
  beds 
  at 
  horizon 
  a 
  are 
  of 
  marine 
  origin, 
  are 
  probably 
  upper 
  Mio- 
  

   cene 
  in 
  age, 
  and 
  correspond 
  in 
  a 
  general 
  way 
  to 
  Fairbanks's 
  Santa 
  

   Margarita 
  and 
  Pismo 
  formations. 
  Those 
  at 
  horizons 
  b, 
  c, 
  d, 
  and 
  e 
  are 
  

   of 
  marine 
  origin, 
  are 
  closely 
  related, 
  belong 
  at 
  the 
  base 
  of 
  the 
  Pliocene, 
  

   and 
  are 
  in 
  a 
  general 
  way 
  the 
  equivalents 
  of 
  the 
  middle 
  Purisima 
  

   and 
  lower 
  and 
  upper 
  San 
  Diego 
  formations. 
  At 
  horizon/ 
  are 
  beds 
  

   of 
  fresh-water 
  origin, 
  probably 
  representing 
  Fairbanks's 
  Paso 
  Robles 
  

   formation 
  and 
  Lawson's 
  marine 
  Merced 
  formation. 
  

  

  The 
  following 
  is 
  a 
  list 
  of 
  the 
  fossils 
  obtained 
  from 
  the 
  Fernando: 
  

  

  Fernando 
  (upper 
  Miocene-Pliocene-Pleistocene) 
  fossils 
  from 
  the 
  Santa 
  Maria 
  district, 
  

  

  Calif 
  or 
  ni<i. 
  

  

  

  1469 
  

   4471 
  

  

  •M 
  

  

  CO 
  

  

  

  «5 
  

  

  1 
  - 
  

  

  -T 
  

  

  S- 
  

  

  — 
  

   — 
  

  

  

  o 
  

  

  00 
  

  

  .- 
  

  

  s 
  

  

  T 
  

  

  \ 
  

  

  * 
  

  

  T 
  

  

  o 
  

  

  T 
  1 
  

  

  X 
  

  

  y. 
  

  

  3 
  

  

  s 
  

  

  • 
  - 
  

  

  -r 
  

  

  — 
  

  

  Act; 
  ron 
  sp 
  

  

  

  

  

  Ainphissa 
  (?) 
  sp 
  

  

  

  

  X 
  

  

  X 
  

   X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Angulus 
  sp 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  A 
  rca 
  sp. 
  indel 
  - 
  - 
  - 
  --- 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  ... 
  

  

  

  X 
  

  

  

  

  X 
  

  

  

  

  

  

  

  Vrca 
  trilincata 
  Conrad 
  (PI. 
  XXIV. 
  

   fig. 
  v 
  

  

  

  X 
  

  

  X 
  

  

  X 
  

  

  X 
  

  

  X 
  

  

  X 
  

   X 
  

  

  X 
  

  

  

  

  

  

  X 
  

  

  

  

  

  

  X 
  

  

  V 
  

  

  Astvrisrichthofcni 
  Gabb 
  (PI. 
  XXIV, 
  

   fig. 
  :; 
  

  

  

  X 
  

   X 
  

  

  X 
  

  

  '.'.'. 
  

  

  X 
  

  

  

  

  

  

  

  

  

  

  Ha 
  la 
  ni 
  is 
  cf. 
  concavus 
  Bronn 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Bathytoma 
  carpenteriana 
  Gabb 
  var. 
  

  

  iVniamloana 
  Arnold 
  (PI. 
  XXIII, 
  

   Bg. 
  7) 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Bathytoma 
  cf. 
  tryoniana 
  Gabb 
  

  

  

  

  

  X 
  

   X 
  

  

  X 
  

  

  X 
  

   X 
  

   X 
  

   X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Bittium 
  arnoldi 
  Bartsch 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Bittium 
  easinaliacnsis 
  Bartsch. 
  . 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Cadulus 
  fusiiormis 
  Sharp 
  and 
  Pils- 
  

   bry 
  (PL 
  XXI, 
  fig. 
  8) 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Calliostoma 
  sp. 
  indct 
  

  

  

  

  X 
  

  

  

  

  

  

  

  

  

  ... 
  

  

  

  

  

  

  

  

  Callista 
  subdiaphana 
  Carpenter. 
  

  

  

  X 
  

   X 
  

  

  X 
  

   X 
  

  

  X 
  

  

  x 
  

  

  

  

  

  

  

  

  X 
  

  

  

  

  

  

  

  Y 
  

  

  Cancellaria 
  crawfordiana 
  Dall 
  var. 
  

   fugleri 
  Arnold 
  (PL 
  XXI, 
  fig. 
  9) 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Cardimn 
  mcekianuin 
  Gabb 
  - 
  

  

  

  

  

  X 
  

  

  

  

  

  

  

  

  

  X 
  

  

  

  

  

  Cardiurn 
  sp. 
  indct 
  

  

  

  X 
  

  

  

  

  

  

  

  ... 
  

  

  

  

  

  

  

  

  

  

  Chione 
  sp 
  

  

  

  

  

  

  

  

  

  

  

  

  

  ... 
  

  

  

  

  X 
  

  

  

  

  

  Chrvsodomus 
  sp 
  

  

  

  X 
  

  

  

  

  

  

  

  

  

  ... 
  ... 
  

  

  

  

  

  

  

  

  

  

  

  

  

  X 
  

   X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Clidiophora 
  punctata 
  Carpenter 
  (PI. 
  

   XXIII, 
  tigs. 
  2, 
  3) 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Crepidula 
  princeps 
  Conrad 
  (PL 
  XXIV, 
  

   figs. 
  1,2) 
  

  

  

  X 
  

  

  ... 
  

  

  X 
  

  

  X 
  

  

  X 
  

  

  

  

  X 
  

  

  

  

  X 
  

  

  

  

  X 
  

  

  ... 
  

  

  X 
  

  

  Y 
  

  

  Crucibuluro 
  spinosum 
  Sowerby 
  

  

  

  

  

  

  

  Cryptomya 
  ovalis 
  Conrad 
  (PI. 
  XXII, 
  

  

  tig. 
  7i 
  .; 
  

  

  

  X 
  

  

  

  

  X 
  

   X 
  

   X 
  

  

  

  

  X 
  

  

  X 
  

  

  

  

  

  X 
  

  

  

  

  

  

  

  Cuiningia 
  californica 
  Conrad 
  (PL 
  

   XXIII. 
  fig. 
  5) 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Dosinia 
  ponderosa 
  Gray 
  (PI. 
  XXII, 
  

   fig. 
  8) 
  

  

  

  X 
  

  

  

  

  

  

  

  

  X 
  

  

  

  

  

  

  X 
  

  

  

  

  

  

  Drillia 
  graciosana 
  Arnold 
  (PL 
  XXI, 
  

   fig. 
  L8) 
  

  

  

  X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Drillia 
  johnsoni 
  Arnold 
  (PL 
  XXI, 
  

   fig. 
  13) 
  

  

  

  

  X 
  

  

  X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Drillia 
  waldorfcnsis 
  Arnold 
  (PL 
  XXI, 
  

   fig. 
  12) 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Echinarachnius 
  ashleyi 
  Merriam 
  (PL 
  

   XXIV. 
  figs. 
  6,7)... 
  

  

  X 
  

  

  

  

  

  

  

  

  X 
  

  

  ... 
  

  

  X 
  

  

  X 
  

  

  

  

  

  

  

  

  Echinarachnius 
  cf. 
  cxccntricus 
  Esch- 
  

   scholtz 
  var. 
  (PI. 
  XXIV. 
  fig. 
  8) 
  

  

  

  

  

  X 
  

  

  

  

  

  

  

  

  X 
  

  

  

  

  Fusus 
  sp. 
  a 
  

  

  

  X 
  

  

  X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Fusus 
  sp. 
  b 
  

  

  

  

  

  

  

  

  

  x 
  

  

  X 
  

   X 
  

  

  

  

  

  

  

  

  

  

  Y 
  

  

  Galenas 
  i 
  no 
  mat 
  us 
  Gabb 
  

  

  

  

  

  

  

  X 
  

  

  X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Glvcvmcris 
  cf. 
  barharensis 
  Conrad. 
  . 
  

  

  

  

  

  

  X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  Kennerlia 
  (?) 
  sp 
  

  

  

  

  X 
  

   X 
  

  

  X 
  

   X 
  

  

  X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  Leda 
  orcutti 
  Arnold 
  (PL 
  XXII, 
  fig. 
  9) 
  

  

  

  

  X 
  

  

  

  

  

  

  

  

  

  X 
  

  

  

  

  

  

  

  Leda 
  taphria 
  Dall 
  (PL 
  XXII, 
  figs. 
  3a, 
  

  

  3b) 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Lucapina 
  ef. 
  crenulata 
  Sowerby 
  

  

  

  

  

  

  X 
  

   X 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  Lunatialewisii 
  Gould 
  (PL 
  XXI, 
  fig. 
  3) 
  

  

  ... 
  

  

  X 
  

  

  

  X 
  

  

  X 
  

  

  

  

  

  

  

  

  

  