190 
INDEX TO NORTH AMERICAN GEOLOGY, 
[BULL. 27] 
Paleontology — Continued. 
Vertebrate— Continued. 
Structure and relationships of Opisthoccelian 
dinosaurs, Brachiosauridse, Riggs, 2. 
Structure of forefoot of Dirnetrodon, Case, 3. 
Teleorhinus browni, Osborn, 8. 
Teleosts from the Platte Cretaceous series, 
Cragin, 1. 
Tissu osseux chez certains poissons des ter- 
rains palaaozoiques de Canyon City, Vail- 
lilllt, 1. 
Tortoise from Colorado Miocene, Hay, 6. 
Tritabercular theory, Osborn, 2. 
Ueber Diacranodus texensis Cope, Broili, 2. 
Vertebrate fossils from Permian beds of Okla- 
homa, Case, 1. 
When did the American mammoth and mas- 
todon become extinct, Lloyd. 1. 
Paleobotany. 
Brandon clays, Woodworth, 1. 
Coal Measure forest near Socorro, Herriek 
(C. L.),l. 
( ol lection de vegetaux fossiles des Etats-Unis, 
Bureau, 1. 
Cretaceous near Cliffwood, Berry, 2. 
Flora of the Matawan formation, Berry, 1. 
Fossil floras of the Yukon, Knowlton, 2. 
Fossil fruits of Tertiary lignite of Brandon, 
Perkins, 6. 
Fossil plant remains at Kreisherville, Hol- 
lick, 5. 
Fossil plants from Kansa-, Bollick, 6. 
Fossil plants from Kukak Hay, Knowlton, 1. 
Fossil Sequoia from the Sierra Nevada, Jef- 
frey, 1. 
Lignite of Brandon and its fossils, Perkins, ">. 
New seed-bearing fern, White (I), ), 1. 
Paleobotany of Cretaceous of Long Island, 
Bollick, 2. 
Paleontology of the Maryland Miocene de 
posits, Angiospermse, Holliek, l. 
Paleontology of the Maryland Miocene de- 
posits, Thallophyta-Diatomaceae, Hover, l. 
Petrified forests and Painted Desert of Ari- 
zona, ( arter. 1. 
Proembryo of the Bennettiteae, Wieland, :;. 
Seed-. n\ Aneimites, White (D.), 5. 
Tertiary plants from Canada and the United 
states. Penhallow, 1. 
General. 
Bibliography and index of North American 
geology, paleontology, petrology, and min- 
eralogy for L903, Weeks, 1. 
Organic remains in ore deposits, Lakes. l.">. 
Sandblast in cleaning fossils, Osborn, 13. 
Genera and species described. 
Abra longicallus (Scacchi), Glenn, 5. 
marylandica n. sp., Glenn, 5. 
Acanthoceras mantelli Sow., Lasswitz, 1. 
hoplitoides n. sp., Lasswitz, 1. 
rhotomagense Sow., Lasswitz, 1. 
Acanthosphara parvula Vinassa, Martin, 6. 
Aceratherium acutum Marsh, Osborn, 9. 
-megalodum Cope, Osborn, 9. 
profectum Matthew, Osborn, 9. 
Acheloma, Broili, 1. 
Achitherium minimus n. sp., Douglass, 1. 
Paleontology — Continued. 
Genera and species described — Continued. 
Actseon calvertensis n. sp., Martin, 3. 
ovoides Conrad, Martin, 3. 
pusillus (Forbes), Martin, 3. 
shilohensis Whitfield, Martin, 3. 
Actinocrinus multiramosus var. altidorsatu* 
n. var., Rowley, Greene, 3. 
■ Actinocyclus ellipticus Grunow, Boyer, 1 
moniliformis Ralfs, Boyer, 1. 
Actinoptychus heliopelta Grunow, Boyer, 1. 
undulatus Kutzing, Boyer, 1. 
Actinostroma moosensis n. sp., Parks, 1. 
Adeonellopsis umbilicata (Lonsdale), Ulri 
and Bassler, 4. 
Adeorbis supranitidus S. Wood, Martin, 3. 
Adocus Cope, Wieland, 1. 
punctatus Marsh, Wieland, 1. 
Aesculus arctica n. sp., Knowlton, 1. 
Aetohatis arcuatus Agassiz, Eastman, 6. 
Agelacrinus, Spencer (W. K.), 1. 
cincinnatiensis Roemer, Spencer (W. K.) 
1. 
(Lepidodiscus) pileus Hall, Spencer (W, 
K.),l. 
Aligena sequata (Conrad), Glenn, 5. 
sequata var. nuda Dall, Glenn, 5. 
pustulosa Dall, Glenn, 5. 
Alnus coryfolia Lesq., Knowlton, 1. 
Allonema n. gen.. Ulrich and Bassler, 1. 
fusiforme (Nicholson and Etheridge, j 
Ulrich and Bassler, 1. 
* ? minimum n. sp., Ulrich and Bassler, 
moniliforme (Whiteaves) and var. aggre 
gatum n. var., Ulrich and Bassler, 1.1 
waldronense n. sp., Ulrich and Bassler,! 
Alticamelus, Matthew (W. D.), 2. 
Amalthea marylandica n. sp., Martin, 3. 
A m hi y pus E. Hitchcock, Lull, 1. 
• lextratus E. Hitchcock, Lull, 1. 
Amphiblcstrum agellus n. sp., Ulrich 
Bassler, 4. 
constrictum n. sp., Ulrich and Bassler, 
Amphiccelia neglecta McChesney, Kind 
and Breger, 1. 
Amplexopora Ulrich, Ulric 
ampla n. sp., Ulrich and 
cqlumbiana n. sp., Ulric 
cylindracea n. sp., Ulrich and Bassler, 2 
tiliosa (D'Orbigny), Ulrich and Bassler, 
Anaphragma n. gen., Ulrich and Bassler, 2. 
mirabile n. sp., Ulrich and Bassler, 2. 
Anaptomorphus Cope, Wortman, i. 
aemulus Cope, Wortman, 1. 
Anastrophia internascens Hall, Kindle 
Breger, 1. 
Anchippus Leidy, Gidley, 1. 
Anehisauripus n. gen., Lull, 1. 
dananus (E. Hitchcock), Lull, 1. 
exsertus (E. Hitchcock), Lull, 1. 
hitchcocki n. sp., Lull, 1. 
minusculus (E. Hitchcock), Lull, 1. 
tuberatus (E. Hitchcock), Lull, 1. 
tuberosus (E. Hitchcock), Lull, 1. 
Ancyropus 10. Hitchcock, Lull, 1. 
heteroclitus E. Hitchcock, Lull, 1. 
Andromeda flexuosa Newb., Hoilick, 2. 
eh and Hassler, 2. 
id Bassler, 2. 
rich and Bassler, . 
I 
