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Map
1 online resource (1 map) : color.
Earth Sciences Library (Branner)
Map
1 map : color ; 73 x 59 cm, on sheet 92 x 108 cm, folded to 23 x 27 cm, in envelope 33 x 26 cm.
Earth Sciences Library (Branner)
Map
1 map : color ; 81 x 110 cm
Earth Sciences Library (Branner)
Book
1 volume.
Earth Sciences Library (Branner)
Map
1 map : color ; 26 x 42 cm, folded to 14 x 9 cm
Earth Sciences Library (Branner)
Map
1 online resource (1 map) : color + pamphlet (vi, 20 pages).
Earth Sciences Library (Branner)
Map
1 map : color ; 55 x 105 cm, on sheet 74 x 139 cm, in envelope 30 x 24 cm + 1 pamphlet (25 pages ; 28 cm) + 1 data sheet (74 x 117 cm).
Earth Sciences Library (Branner)
Map
1 map : color ; 42 x 57 cm, folded to 10 x 21 cm.
Earth Sciences Library (Branner)
Map
1 map : color ; 20 x 31 cm, folded to 22 x 12 cm
Earth Sciences Library (Branner)
Book
40 pages : color illustrations, map ; 28 cm.
Plant fossils are described from five stratigraphic levels in upper Paleozoic strata in Abo Canyon, New Mexico. The fossils were collected by Charles B. Read, of the U.S. Geological Survey, in 1940 and 1941, and span the Pennsylvanian-Permian boundary. Read's original field notes have not been located. However, a combination of his pattern of bed numbering, notes written by Read and enclosed with the collections, and the taxonomic composition of the floras permit them to be placed with confidence in a sequence from oldest to youngest. The youngest fossils, which securely anchor the entire collection stratigraphically, are from the Abo Formation and are of early Permian age. A collection labeled "Base of Red Magdalena" is most likely from what today would be termed the Bursum Formation, thus immediately below the Abo. The three remaining collections are from the Pennsylvanian-aged Atrasado Formation, probably the Upper Pennsylvanian portion, extending as far back as the Missourian. The collections record a trend of increased seasonality of moisture (likely rainfall) through time. They are all either dominated or co-dominated by plants typical of environments with seasonal moisture stress. Conifers, Sphenopteris germanica and mixoneurid odontopterids are common to abundant in the collections older than the Abo Formation. All of the assemblages from below the Abo Formation also contain some taxa that required wet substrates for most of the year, particularly calamitaleans and marattialean tree ferns; the oldest collection also contains evidence of arborescent lycopsids.
Earth Sciences Library (Branner)
Map
1 map : color ; 68 x 104 cm, on sheet 92 x 114 cm, folded to 22 x 10 cm
Earth Sciences Library (Branner)
Map
2 maps : both sides ; on sheet 36 x 22 cm
Earth Sciences Library (Branner)
Book
ix, 76 pages : color illustrations, color maps ; 28 cm.
Earth Sciences Library (Branner)
Book
1 sheet : color illustrations, color maps ; 60 x 42 cm, folded to 10 x 21 cm
Earth Sciences Library (Branner)
Map
1 map : color ; 56 x 43 cm, on sheet 60 x 43 cm, folded to 10 x 22 cm
Earth Sciences Library (Branner)
Map
1 map : color ; 19 x 28 cm
Earth Sciences Library (Branner)
Book
1 sheet : color illustrations, color map ; 40 x 42 cm, folded to 10 x 21 cm
Earth Sciences Library (Branner)
Map
1 map : color, plastic-treated ; 68 x 90 cm, folded to 23 x 11 cm
Earth Sciences Library (Branner)
Map
1 online resource (14 maps) : color + 1 pamphlet (vi, 13 pages) + 11 tables.
Earth Sciences Library (Branner)
Map
1 map : both sides, color, plastic-treated ; 141 x 133 cm, on sheet 92 x 91 cm, folded to 23 x 10 cm
  • Cherokee National Forest, Ocoee-Hiwassee ranger district
  • Cherokee National Forest, Tellico ranger district.
Earth Sciences Library (Branner)