Alan Cressler:
Hydrobiidae, Putnam Spring Run, Talladega National Forest, Cleburne County, Alabama 2
Alan Cressler:
Oakey Mountain, Terrapin Creek Valley, Big Tank Ridge, Talladega National Forest, Cleburne County, Alabama 1
Alan Cressler:
Terrapin Creek Valley, Augusta Mine Ridge, Talladega National Forest, Cleburne County, Alabama 1
Alan Cressler:
Terrapin Creek, Talladega National Forest, Cleburne County, Alabama 1
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 10
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 9
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 8
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 7
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 6
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 5
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 4
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 3
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 2
Alan Cressler:
Putnam Spring, Talladega National Forest, Cleburne County, Alabama 1
Alan Cressler:
Putnam Spring Run, Talladega National Forest, Cleburne County, Alabama 4
Alan Cressler:
Putnam Spring Run, Talladega National Forest, Cleburne County, Alabama 3
Alan Cressler:
Putnam Spring Run, Talladega National Forest, Cleburne County, Alabama 2
Alan Cressler:
Putnam Spring Run, Talladega National Forest, Cleburne County, Alabama 1
Alan Cressler:
Hydrobiidae, Putnam Spring Run, Talladega National Forest, Cleburne County, Alabama 1
Alan Cressler:
Trinity River Waterbird Rookery, Chambers County, Texas 2
Alan Cressler:
Trinity River Waterbird Rookery, Chambers County, Texas 1
Alan Cressler:
Trinity River, Chambers County, Texas 1
Alan Cressler:
Houston, Harris County, Texas 1
Alan Cressler:
Houston, Harris County, Texas 2
Alan Cressler:
Creek Canyon, Gorman Formation, Early Ordovician Age, San Saba County, Texas 6
Alan Cressler:
Creek Canyon, Gorman Formation, Early Ordovician Age, San Saba County, Texas 5
Alan Cressler:
Creek Canyon, Gorman Formation, Early Ordovician Age, San Saba County, Texas 4
Alan Cressler:
Creek Canyon, Gorman Formation, Early Ordovician Age, San Saba County, Texas 3
Alan Cressler:
Creek Canyon, Gorman Formation, Early Ordovician Age, San Saba County, Texas 2
Alan Cressler:
Creek Canyon, Gorman Formation, Early Ordovician Age, San Saba County, Texas 1
