INDEX. 



609 



Lithodendron meniber, occurrence and character of. 20-22, 



38-40, 42-45 



Liverworts, Jurassic, plates sliowing Pi. VI 



Loclie, Ernest G. , fossil plants collected by 146, 152 



Locust Point, Md., fossil plants from 573,583-589 



Loomis, P. B., sections by 207 



Lorton station, Va., fossil plants from near.. 485-486,582-689 

 Lower Potomac. See Older Potomac formation. 



Lowry, Cal., fossil plants near 214-215,221-223,254 



Lucas, F. A. , mention of 15, 326 



Lycopodiacese 302-303 



Lycopodiales 302-303 



Lyeopodiolithes ? sp. Taylor 373 



Lycopodites Brongniart 302-303 



? montanensis Font 30'J- 



303, 313-314; PI. LXXII, Figs. 15, 16 



M. 



McCarty Creek, Cal. . fossils from 222 



McGee, W J, on Potomac formation 365-366 



Potomac formation named by 362 



Macrotseniopteris Schimper 82-83 



californica Font 82-83, 141; PI. XIV, Figs. 1-4 



major (L. & H.) Schimp 79 



Maddren, A. 6., fossils donated by 146 



Map of Buck Mountain region, Oreg PI. V 



of Cow Creek Valley, Oreg Pl.V 



of Little Colorado Valley region, Ariz . . : PI. IV 



of Potomac terrane, Md PI.LXXX 



of Shasta formation region, Cal PI. LXIV 



JIarchantiaceee 53-54 



Marchantiales 53-54 



Marchantites Brongniart 53-.54 



erectus (Bean) Sew. ?.... 53-54,75,141; PI. VI,Fig.s.l,2 



Marls, variegated, buttes of 2:i-24, 42 



fossils of 23,30,33 



occurrence and character of 23, 25-26, 39-40, 42-45 



Marnes Irishes, correlation of 26 



Marratiacese 87-88, 239-242 



Marsh, O. C, Atlantosaurus beds of 203 



Jurassic mammal quarries of 206 



on fossils from Muirkirk, Md 363 



on Potomac formation 576, 579 



Marsileacese 83-87,233-239 



Martin Brook, Canada, fossil plants from 277 



Maryland, cycads of, collections of 404-411 



eycads of, species of, descriptions of 416-474^ 



stratigraphic position and character of 411-416 



fossil localities in 527-574 



Potomac formation of, correlation of 580-599 



fossil plants from 474-478, 527- 



574; Pis. LXXXI-CVII, CVIII-CX, CXII-CXIX 



region of, map showing PI.LXXX 



section of, diagram showing 598 



Maryland and Virginia, Potomac formation of, com- 

 parison of 574-575 



Mason, Victor, fossil plants collected by 382-383, 



486,488,490,516 



Masons Neck, Va., excursion made to 385 



Matouiaceae 230-231 



Matonidium Schenk 230-231 



Althausii (Dunk.) Ward 230- 



231, 273; PI. LXV,Figs. 22,23 



Gapperti {Mt.) Schenk 230 



potydactytum (Gopp. ) Schenk 230 



Matties Peak, S. Dak., section at 323-324 



Meek, F. B., fossils collected by 361 



Page. 



Meek and Hayden, on Potomac formation 348 



Megalosaurus 205 



Menispermacese 268 



Menispermites Lesquereux 268, 498 



californicus Font 268,272; PI. LXIX, Figs. 12-14 



reniformis Dn (97 



tenuinervis Font 491, 



496-497,557,567,584; PI. CIX, Figs.2,3 



virgmiensis Font 482, 



491, 496-497, 604, .528, 534, 557, 567, .584, 593 



Mesozoic, Younger, investigation of 358-360 



Mesozoic deposits of Arizona. See Arizona, Older Meso- 

 zoic of. 



}Iicrolepia Mantdli (Brongn. ) Ett 156 



Minnekahta, S. Dak., cycads from 206 



section near 323-324 



Moencopie Bluffs, Ariz., age of 19 



section through 41 



Moencopie formation, fossil plants from 29-30 



geological conditions of 36 



name of 17 



occurrence and character of 18-19, 22, 3.S-40, 42-45 



section of IS 



Moencopie Wash, fossil twigs and stems from 28, 29' 



stratigraphieal conditions on 25, 28. 36, 39 



section on 38-39 



Montana, northern, fossils from 177-178, 



224, 277-315; Pis. XLV, LXXI-LXXIII 



description of 177-178, 286-313 



list of 280-282, 313 



Moqui Buttes, section through 10 



Morrison formation 678 



Mortar beds, occurrence of 26 



Morton and Vanuxem on Potomac formation 343-344 



Mortson, O. C, fossils collected by 279,282-283 



Mount Agassiz. Ariz. , fossil wood reported f rOin 36 



Mount Vernon, Va., fossil plants from .. 381,383,475,487-603 



Mount Vernon beds, correlation of 381, 478, 598 



fossils of 381, 383, 388, 475, 477, 490-503, 608, 682-589 



occurrence of 381, 490, 574-575 



Muddy Creek, Md. , fossil plants from 572-573, 583-.589 



Muirkirk, Md., fossils from 363, 370, 475, 534-537, 683-689 



Muschelkalk, correlation of Leroux member and 26 



Muscites Sternbergianus Dunk 264 



Myrica brookensis Font 510, 513, .584 



Nageiopsis Fontaine 171-173, 259-260, 311-312 



angustifolia Font 219, 491 , 516, .519, 528. 



.557,560-061, 567-668,584; PI. CXVII, Fig.5. 4,5 



heterophylla Font 219, 483, .520, 526 



548, 557, 561, 567-568, 584; PI. CXVII, Fig. 6 



latifolia Font. ? 260, 272, 584; PI. LXVIII, Fig. 13 



longlfolia Font 167, 



lJl-174, 219-220, 272, 259-260, 311, 313-315, 

 484,491,510,528,548,557,584; PI. XLV. Figs. 1-5; 

 PI. LXVIII, Figs. 9-12; PI. LXXIII, Fig. 9 



microphylla Font 484, 584 



montanensis Font 312, 



313-314,584; PI. LXXIII, Fig. 10 



obtusifolia Font 484,684 



recurvata Font. '! 548, 552, 584; PI. CXVI, Fig. 2 



zamioides Font 312, 510, 521, .526, 528, 545, 552, .586 



Nathorst, A. G. , on Anomozamites 322 



on Cladophlebis 69 



on Dioonites 246 



on Mexican fossils 578-679 



MON XLVIII — 05- 



-39 



