Photo id: 256969 - Escondido formation in bed of Hondo Creek at Rock Crossing, a...Escondido formation in bed of Hondo Creek at Rock Crossing, about 1.25 miles below the crossing of the road leading east from Elstone. Sphenodiscus (several varieties) occurs abundantly in these strata. Medina County, Texas. 1912. Plate 19-A in U.S. Geological Survey. Professional paper 90. 1915. - ID. Stephenson, L.W. 721 - slw00721 - U.S. Geological Survey - Public domain imageDimensioni del file: 43745 bytes Foto visualizzata 305 volte
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