714 
INDEX    TO    NORTH    AMERICAN    GEOLOGY 
Paleontology— Continued. 
Genera  and  spt ecies  described — Continued. 
Seila  A.  Adams,  Arnold,  2. 
adamsii  (H.  C.  Lea),  Martin,  5. 
assimilata  C.  B.  Adams,  Arnold,  2. 
Selaginella    marylandica    n.    sp.,    Fon- 
taine, 5. 
Selenichnus  E.  Hitchcock,  Lull,  2. 
breviuseulus  E.  Hitchcock,  Lull,  2. 
falcatus  E.  Hitchcock,  Lull,  2. 
Selenosteus  kepleri  n.  gen.  et  sp.,  Dean, 
1. 
Semele  Schumacher,  Arnold,  2. 
carinata  (Conrad),  Glenn,  6. 
carinata      var.      compacta      Dall. 
Glenn,  6. 
decisa  Conrad,  Arnold,  2. 
pulchra  Sowerby,  Arnold,  2. 
pulchra     Sowerhy,     montereyi     n. 
var..  Arnold.  2. 
subovata  (Say),  Glenn.  6. 
Semicoscinium  Prout,  Grabau,  1. 
tenuiceps  (Hall),  Grabau.  1. 
Seminula     argentia      (Shepard)      Hall, 
Beede,  5,  7. 
argentea    ( Shephard') ,   Beede,   1. 
claytoni  Hall  and  Whitfield,  Girty, 
;;. 
humilis  Girty  ?,  Girty,  3. 
subquadrata  Hall  ?,  Girty,  3. 
subtilita  Hall,  Girty,  3. 
Semionotida\  Eastman,  20. 
Semionotus  Agassiz,  Eastman,  20. 
agassizii    (W.    C.    Redfield),    East- 
man, 20. 
brauni    (Newberry),   Eastman,   20. 
elegans   (Newberry),  Eastman,  20. 
fultus  (Agassiz),  Eastman,  20. 
fultus  Agassiz,  Eaton,  1. 
gigas  (Newberry),  Eastman,  20. 
lineatus  (Newberry),  Eastman,  20. 
marshi  W.  C.  Redfield,  Eaton,  1. 
micropterus  Newberry,  Eaton,  1. 
micropterus  (Newberry),  Eastman, 
20. 
nilssoni  Agassiz,  Eastman,  20. 
ovatus  YV.  C.  Redfield.  Eaton,  1. 
ovatus  (W.  C.  Redfield),  Eastman, 
20. 
robustus      (Newberry),      Eastman, 
20. 
tenuiceps  Agassiz.  Eaton,  1. 
tenuiceps   (Agassiz),   Eastman,  20. 
Septastrea       marylandica        (Conrad), 
Vaughan,  19. 
Septifer,  Recluz,  Arnold.  2. 
bifurcatus  Conrad,  Arnold,  2. 
Septopora  Prout,  Condra.  2. 
biserialis  (Swal.),  Sardeson,  4. 
biserialis   (Swallow),  Condra,  2. 
biserialis-nervata    Ulrich,    Condra, 
2 
cestriensis  Prout,  Condra,  2. 
decipiens  Ulrich,  Condra,  2. 
multipora  (Rogers),  Condra.  2. 
pinnata  Ulrich,  Condra.  2. 
robusta  Ulrich,  Condra,  2. 
Paleontology— Continued. 
Genera  and  species  described — Continued. 
Sequoia  ambigua  Heer,  Fontaine,  3,  5. 
angustifolia  Lesq.,  Knowlton,  14. 
burgessii  n.  sp.,  Penhallow,  5. 
cycadopsis  Fontaine,  Fontaine,  5. 
fairbanksi  n.  sp.,  Fontaine,  2. 
gracillima     (Lesq.)     Newb.,    Berry, 
5-8. 
heterophylla  ?  Velenovsky,  Knowl- 
ton, 18. 
?    inferna    Ward   nom.    nov.,    Fon- 
taine, 5. 
langsdorfii     (Brongn.)     Ileer,    Pen- 
hallow,  4.  5. 
langsdorfii    (Brgt.)    Heer,    Knowl- 
ton, 14. 
penhallowii  n.  sp.,  Jeffrey,  1. 
reichenbachi    (Gein.)    Ileer,   Berry, 
5-7. 
reichenbachi    (Geinitz)    Heer,  Fon- 
taine. 2.  ::. 
reichenbachi         (Geinitz)         Heer, 
Knowlton,  18. 
sp.,   Knowlton,   14. 
sp.  ?  (cone),  Knowlton,  18, 
(cone),  Knowlton,  16. 
Serpula  gordialis  Schlotheim,  Cragin,  2. 
Serpula  sp.,  Cragin,  2. 
Serpulorbis  Sassi,  Arnold,  2. 
squamigerus  Carpenter,  Arnold,  2. 
(Vermicularia)   sp.  indet.,  Arnold, 
2. 
Seymouria  baylorensis  n.  gen.  and  sp 
Broili,  2. 
Sharpeiceras  n.  gen.,  Hyatt,  1. 
Shastasaurus,  Merriam   (J.  C),  4,  5,  6. 
alexandrae  n.  sp.,  Merriam  (J.  C), 
4. 
altispinus  n.  sp.,  Merriam   (J.  C), 
4. 
careyi  n.  sp.,  Merriam  (J.  C),  4. 
osmonti  n.  sp.,  Merriam   (J.  C),  4, 
13. 
pacificus  n.  sp.,  Merriam  (J.  C),  4. 
perrini  n.  sp.,  Merriam  (J.  C),  4. 
Shastites  n.  subg.,  Hyatt  and  Smith,  1. 
Shepardia   E.    Hitchcock,   Lull,   2. 
palmipes  E.   Hitchcock,   Lull,  2. 
Shizocrania  filosa   (Hall),  Weller,  6. 
Sbumardites  n.  gen.,  Smith   (J.  I'.),  3. 
simondsi  n.  sp.,   Smith    (.T.   F.),   3. 
Sibirites  Mojsisovics,  Hyatt  and  Smith, 
1. 
noetlingi  n.  sp.,  Hyatt  and  Smith, 
1. 
Sibiritidae      Mojsisovics.      Hyatt      and 
Smith,  1. 
Sibyllites      Mojsisovics,      Hyatt      and 
Smith,  1. 
louderbacki     n.     sp.,     Hyatt     and 
Smith,  1. 
Siderastrea  radians    (Pallas),  Vaughan, 
siderea       (Ellis 
Vaughan,  2. 
and      Solander), 
