Alan Cressler:
Allosaurus (Therapod), Dinosaur Tracks, Jurassic Age, Salt Wash Member of Morrison Formation, Copper Ridge Dinosaur Trackway, BLM, Grand County, Utah 1
Alan Cressler:
Brontosaurus Bulges, Jurassic Age, Morrison Formation, Dinosaur Ridge, Dakota Hogback Natural Area, Morrison, Jefferson County, Colorado 1
Alan Cressler:
Brontosaurus Bulges, Jurassic Age, Morrison Formation, Dinosaur Ridge, Dakota Hogback Natural Area, Morrison, Jefferson County, Colorado 1
Alan Cressler:
Brontosaurus Bulges, Jurassic Age, Morrison Formation, Dinosaur Ridge, Dakota Hogback Natural Area, Morrison, Jefferson County, Colorado, Scout Aulenbach 1
Alan Cressler:
Buckhorn Wash Dinosaur Track, Buckhorn Wash, San Rafael Swell, BLM Lands, Emery County, Utah 1
Alan Cressler:
Buckhorn Wash Dinosaur Track, Buckhorn Wash, San Rafael Swell, BLM Lands, Emery County, Utah, Jonathan Bailey 1
Alan Cressler:
Camaraurus (Sauropod), Dinosaur Tracks, Jurassic Age, Salt Wash Member of Morrison Formation, Copper Ridge Dinosaur Trackway, BLM, Grand County, Utah 2
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 1
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 10
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 2
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 3
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 4
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 5
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 6
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 7
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 8
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah 9
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah, Russell McLester 1
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah, Russell McLester 2
Alan Cressler:
Dinosaur Stomping Grounds, Megalosauripus Tracksite, Upper Jurassic age, Moab Member of the Curtis Formation, BLM Lands, Grand County, Utah, Russell McLester 3
Alan Cressler:
Dinosaur Track, Left Fork, Great West Canyon, The Subway Hike, Zion National Park, Washington County, Utah 1
Alan Cressler:
Dinosaur Track, Left Fork, Great West Canyon, The Subway Hike, Zion National Park, Washington County, Utah 2
Alan Cressler:
Dinosaur Tracks, Early Cretaceous Age, Cedar Mountain Formation, New Dinosaur Track Site, near Mill Creek Canyon, Grand County, Utah 1
Alan Cressler:
Dinosaur Tracks, Early Cretaceous Age, Cedar Mountain Formation, New Dinosaur Track Site, near Mill Creek Canyon, Grand County, Utah 2
Alan Cressler:
Dinosaur Tracks, Early Cretaceous Age, Cedar Mountain Formation, New Dinosaur Track Site, near Mill Creek Canyon, Grand County, Utah 3
Alan Cressler:
Dinosaur Tracks, Early Cretaceous Age, Cedar Mountain Formation, New Dinosaur Track Site, near Mill Creek Canyon, Grand County, Utah 4
Alan Cressler:
Dinosaur Tracks, Late Triassic to early Jurassic, Navajo Sandstone, Moenkopi Dinosaur Tracks, Navajo Reservation, near Tuba City, Coconino County, Arizona 1
Alan Cressler:
Dinosaur Tracks, Late Triassic to early Jurassic, Navajo Sandstone, Moenkopi Dinosaur Tracks, Navajo Reservation, near Tuba City, Coconino County, Arizona, Brent Aulenbach 1
Alan Cressler:
Dinosaur Trackway, Track No. 1 (dry), Cretaceous Age Formation, Upper Madison Rapid, Monumento Natural Río Bravo del Norte, Mile 721-722, Coahuila, Mexico 1
Alan Cressler:
Dinosaur Trackway, Track No. 1 (dry), Cretaceous Age Formation, Upper Madison Rapid, Monumento Natural Río Bravo del Norte, Mile 721-722, Coahuila, Mexico 1 Scale
