INDICE DE GENEROS Y ESPECIES 165 
Págs 
Stangerites Daxaeensis, SP. MOV 57 
Daemiopteris CE dana e 135 
aenopterns (CN 131 
Taeniopteris (Zeilleri) tonkinensis, SP. MOV... ooo. 132 
Tecatzoncatl (Williamsonia), Sp. MOV. 98 
Tlazolteotl (Willlamsonia) Sp. Dm 97 
Tonkinensis, Taeniopteris (Zeilleri) SP. DOV...ooomerrrrrr rro 132 
tribulosus (Obozamites) p.m es 45 
Trigonocarpus Daxacensis SP. DIV. to 118 
vital (Mae opi 131 
Willard, Edesoccsooscopooropocorscoobooo cone obio oo dos oops ada: Saa e OO eOn 88 
Williamsonia Centeotl, Sp. DOV....oooooooooooo... Sosa aora OOOO 96 
Williamsonia Cuauhtemoc, pao e 82 
Williamsonia (2) Huitzilopoehtli, SP. DOV +. ..ooooerorrrr rro 98 
Williamsonia Ipalmemoandi, Sp. MOV. 92 
Williamsonia Mexicana, sp mor 100 
Williamsonia Nathorstil, Sp. MOV... 85 
Williamsonia Netzahualeoyotl, Sp. MOV. 89 
Williamsonia Quetzalcoatl, Sp. O re 93 
Williamsonia Tecatzoncatl, Sp. DIV 98 
Williamsonia Tlazolteotl, sp. mor. 97 
Williamsonia Xicotencatli, sp. aos 84 
Williamsonia XiPe......ooooororrrrr ooo0DonSongronoooo od0eboo yoo po Yao 98 
Xaicotencatli (Willamsonia) SP. Do 84 
po (Wilkoamequio) o ..onosooo oo 09009009 0ooo On orRo aro oo oP oO AsOr OB O00 IAS 0 ARO aa '98 
Yucecites Daxacensis DOY. 116 
Wu ecitesiS chape Ai 115 
