WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
259 
Paleontology— Continued. 
Genera and species described— Continued. 
PhysospongiaalternataHall, Hall and Clarke, 
2269, 2271. 
colletti Hall, Hall and Clarke, 2269, 2271. 
dawsoni Whitfield (sp.).Hall and Clarke, 
2265, 2271. 
multibursaria n. sp., Hall and Clarke, 
2269, 2271. 
Phyxelis dilapsus, Scudder, 4890. 
eradicatus, Scudder, 4890. 
evigoratus, Scudder, 1890. 
exeissus, Scudder, 4890. 
Picea nigra, Penhallow, 4336. 
Pileotraypa, Simpson, 4983. 
Piloceras, Hyatt, 2820. 
newton-winchilli n. sp., Clarke, 953. 
Pinacotrypa, Simpson, 4983. 
Pinacotrypa margi nata n. sp. , Whiteaves, 6074. 
Pinna alamedensis Yates, .Cooper, 1071. 
arkansana n. sp., Weller, 5986. 
caloosaensis n. sp., Dall, 1272. 
carnea Gmelin. Dall, 1272. 
comancheana n. sp., Cragin, 1116. 
klngi Meek, Logan, 3559. 
maxvillensis, Whitfield, 6099. 
peracuta Shumard, Girty, 2037. 
Eeyes, 3062. 
petrina, White, Herrick.and Johnson, 2465. 
petrina White, Stanton, 5191. 
quadrata n. sp., Dall, 1272. 
rudis i Linn.-') Dillwyn, Dall, 1272. 
venturensis Yates, Cooper, 1071. 
sp., Harris, 2313, 2315. 
sp., Logan, 3559. 
n. sp., Stanton, 5199. 
Pinnaporina, Simpson, 1983. 
Pinnatopora multipora o. sp., Etog< rs, 1656 
ptiloporoidea n. sp., Rogers, 4656. 
pyriformipora n.sp., Rogers, 4656. 
Pinoxyloii dacotense Knowlton n. sp., Ward, 
5857. 
docatense n. sp,, Knowlton, 3261. 
Pinus anthraciticus n. sp., Dawson, L434. 
graoilistrobus n. sp., Knowlton, 3255. 
hambachi n. sp., Kirehner, 3187. 
iddingsi n. sp., Knowlton, 3255. 
niacrolepis n. sp., Knowlton, 3255. 
nordcnskioldi Heer?, Ward, 5857. 
premurrayana n. sp., Knowlton, 3255. 
quenstedti Heer, Knowlton, 3264. 
susquaensis Dawson, Fontaine, 1850. 
wardii n. sp., Knowlton, 3255. 
(Cyclopitus)nordenskioldii, Dawson, 1 134. 
sp., Knowlton, 3246. 
sp. ?, Newberry, 4080. 
sp., Knowlton, 3262. 
Pisania (Celatoconus) mix n. sp., Dall, 1259. 
(Tritonidea) johnsoni n. sp., Aldrieh, 73. 
Pisidinm compressnm Prince, Baker, 217. 
Pisocrinus baceula n. sp., Miller and Gurley, 
3998. 
benedicti n. sp., Miller, 3992. 
campana n. sp., Miller, 3992. 
gemmiformis, Miller, 3992. 
gorbyi n. sp., Miller, 3992. 
milligani n. sp., Miller and Gurley, 3998. 
Pistacia aquehongensis n. sp., Hollick, 2669. I 
Paleontology— Continued. 
Gt at ra and species described— Continued. 
Pistia corrugata Lx., Knowlton, 3264. 
Pithecanthropus erectus, Marsh, 3697. 
Pityoxylon aldersoni n. sp., Knowlton, 3255. 
amethystinum n. sp., Knowlton, 3255. 
hollicki n. sp., Knowlton, 3250. 
pea lei n. sp., Knowlton, 3243. 
n. sp., Hollick, 2698. 
Placenticeras californicum, Smith, 5055, 
costatus n. sp., Herrick and Johnson, 2465. 
fallax n. sp., Aguilera, 57. 
pacificum n. sp., Smith, 5055. 
placenta Dekay, Logan, 3554. 
placenta (Dekay) Stanton, 5191. 
syrtalis Mort., var. nov. cumminsi, Cragin, 
1115. 
Placoderm, Claypole, 979, 987. 
Placodus, Case, 768. 
Placophyllum n. gen., Simpson, 4984. 
Placunanomia lithobleta n. sp., Dall, 1272. 
plicata Tuomeyand Holmes, Dall, 1272. 
Placunopis carbonaria Meek and Worthen, 
Keyes, 3062. 
? hilliardensis White, Stanton, 5191. 
Plaesiomys, Hall and Clarke, 2260. 
Plagiolophus vancouverensis n. sp., Wood- 
ward, 6440. 
Planera crenata Newb., Newberry, 4083. 
knowltoniana Hollick n. sp., Newberry, 
4082. 
longifolio Lesq., Newberry, ins: 1 ,. 
mycrophylla Newb., Newberry, 4083. 
nervosa Newt'.. Newberry, 4083. 
variabilis Newb.. Newberry, 4083. 
Planetoceras n. gen., Hyatt, 2816. 
Planolites corrugatus n. sp., Walcott, 5815. 
superbus n. sp., Walcott, 5815. 
Planophlebia Scudder, Scudder, 4895. 
gigantea, Scudder, 1895. 
Planorbis campanulatus say, baker, 217. 
conanti n. sp., Dall, 1259. 
disstoni n. sp., Dall, 1259. 
pabloanus n. sp., Cooper, 1071. 
praecursoris a. sp., White, 6036. 
willeoxii n. sp.. Dall, 1259. 
Plasmopora Milne-Edwards and Haime, 1849, 
Lam be. 3874. 
follis Milne-Edwards and Haime, Lambe, 
3374. 
petaliformis Lonsdale (sp.), Lambe, 3374. 
Plataninium haydeni Felix, Knowlton, 3255. 
Platanus appendiculata, Knowlton, 3235. 
as]. era New!.., Newberry, 4083. 
cissoides n. sp., Lesquereux, 3170. 
cissoides Lesquereaux ?, Ward, 5856. 
guillelmae Goepp, Knowlton, 3255. 
haydenii Newb., Newberry, 4083. 
latilobi Newb., Newberry, 4083. 
montana n. sp., Knowlton, 3255. 
newberriana Heer, Lesquereux, 3470. 
nobilis, Newb., Newberry, 4083. 
obtusiloba Lesq., Lesquereux, 3470. 
primseva ? Lesq., Dawson, 1436. 
Lesquereux, 3470. 
prinrseva Lesq., Lesquereux, 3470. 
grandidentata var., Lesquereux, 3470. 
