Alan Cressler: Beggiatoa alba (possible identification), Sulphur Spring, Blount County, Alabama 2
Alan Cressler: Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 1
Alan Cressler: Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 2
Alan Cressler: Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 3
Alan Cressler: Bell-Collins Site, Hurricane Creek, Upper Paint Rock River System, Jackson County, Alabama 4
Alan Cressler: Big Coon Blue Hole, Big Coon Creek, Jackson County, Alabama 1
Alan Cressler: Blackburn Fork Little Black Warrior River, above Dumas Bridge Road, U.S. Geological Survey, SESQA Ecology sample site, Blount County, Alabama 1
Alan Cressler: Blue Pool, Williams Cove, James D. Martin-Skyline Wildlife Management Area, Jackson County, Alabama 1
Alan Cressler: Bryant Creek, Jones Cove, Sand Mountain, Jackson County, Alabama 1
Alan Cressler: Cahaba River, Cabaha River National Wildlife Refuge, Bibb County, Alabama 1
Alan Cressler: Cahaba River, Cabaha River National Wildlife Refuge, Bibb County, Alabama 2
Alan Cressler: Cahaba River, Cabaha River National Wildlife Refuge, Bibb County, Alabama 3
Alan Cressler: Cahaba Valley Creek, Pelham, Shelby County, Alabama 2
Alan Cressler: Cheaha Creek, Cheaha Creek Gorge, Talladega National Forest, Clay County, Alabama 1
Alan Cressler: Cheaha Creek, Cheaha Creek Gorge, Talladega National Forest, Clay County, Alabama 2
Alan Cressler: Cheaha Creek, Chinnabee Silent Trail, Talladega National Forest, Clay County, Alabama 1
Alan Cressler: Chewacla Creek, Chewacla State Park, Lee County, Alabama 1
Alan Cressler: Chewacla Creek, Chewacla State Park, Lee County, Alabama 2
Alan Cressler: Chewacla Creek, Chewacla State Park, Lee County, Alabama 3
Alan Cressler: Coker Mill Creek, Canyon, Covington County, Alabama 5
Alan Cressler: Conecuh River, Covington County, Alabama 1
Alan Cressler: Fern Wall, Upper Eocene age, Moodys Branch Formation, Jackson Group, Conecuh River, Covington County, Alabama 1
Alan Cressler: Halawakee Creek, Lee County, Alabama 1
Alan Cressler: Halawakee Creek, Lee County, Alabama 2
Alan Cressler: Halawakee Creek, Lee County, Alabama 3
Alan Cressler: Hester Creek, Madison County, Alabama 1
Alan Cressler: Hester Creek, Madison County, Alabama 1
Alan Cressler: Hester Creek, Madison County, Alabama 3
Alan Cressler: Hester Creek, Madison County, Alabama 4
Alan Cressler: Hillabee Creek, U.S. Geological Survey sample site, Tallapoosa County, Alabama 1