. Annual report of the United States Geological Survey to the Secretary of the Interior . k around Granbury there is a remarkableagglomerate of requienias about 130 to 140 feet below the summit ofthe beds. A Requienia horizon occurs in the Bachelor Peak section (LampasasCounty), just below a Lunatia (Tylostoma) bed, in a band of hard,arenaceous limestone 10 feet thick, 185 feet below the Walnut rock weathers with a peculiar rough surface. This is probablythe most southern outcrop of the Requienia bed of the ComanchePeak section. In the Colorado section there are three well-definedhori
. Annual report of the United States Geological Survey to the Secretary of the Interior . k around Granbury there is a remarkableagglomerate of requienias about 130 to 140 feet below the summit ofthe beds. A Requienia horizon occurs in the Bachelor Peak section (LampasasCounty), just below a Lunatia (Tylostoma) bed, in a band of hard,arenaceous limestone 10 feet thick, 185 feet below the Walnut rock weathers with a peculiar rough surface. This is probablythe most southern outcrop of the Requienia bed of the ComanchePeak section. In the Colorado section there are three well-definedhorizons of the fossil Monopleura, at the base and in the middleportions of the section. In the more shallow beds of the upper 100 feet of the sections southof the Leon are found many small species which have a Fredericks-burg affinity. These include Exogyra weatJu rfordt nsis, an antecedentof E. texana, a small echinoid. nerineas, and other species which arenot found below the Paluxy sand in the Comanche Peak section. In U. S. GEOLOGICAL SURVEY TWENTY-FIRST ANNUAL REPORT PART VII PL. XXV. CHARACTERISTIC FOSSILS OF THE GLEN ROSE , Lunatia (Tylostoma) pedernalis Roemer; 2((, 2b, Cyprina? mediale Conrad. UNIVf^i PLATE XXVI. PLATE XXVI. Characteristic Plants op the Trixity Division. 1. Pagiophyllum dubium sp. nov. 2. Pagiophyllum dubium sp. nov. 3. Podozamites acutifolius 4. Sequoia pagiophylloides sp. nov. 5. Laricopsis longifolia Font. 6. Podozamites 7. Zamites tenuinervis Font. 8. Frenelopsis varians sp. nov. ig. 9. Sphenolepidium sternbergianunvar. densifolium Font. 10. Williamsonia texana sp. nov. 11. Equisetum texense sp. nov. 12. Brachyphyllum texense sp. nov. 13. Brachyphyllum texense sp. nov. 14. Frenelopsis varians sp. nov. 164 U. S. GEOLOGICAL SURVEY TWENTY-FIRST ANNUAL REPORT PART v|| PL. XXVI
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