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Next to the Purgatoire River, a man stands over water filled Apatosaurus dinosaur tracks made during the late Jurassic Period about 150 million years ago in the Picket Wire Canyonlands in the Comanche National Grasslands in southeastern Colorado.
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There is a person hand who is comparing the size of dinosaur footprints. Three-toed predatory species Carved in black natural stone.
USA Southwest outdoors: hiking on the trails of Arches National Park. Landscapes and Southwest USA desert ecosystem: the sand footprints
Detail of historical footprint of extinct animal, prehistory
A small herd of apatosauruses grazes at sunset. These majestic creatures have long ago left the Endangered Species list, and have been on the Extinct Species list for the past 140 million years.
View of a tridactyl footprint fossilised on the rock known as Fossil track or Ichnite, Mosqueruela, Spain
High angle closeup view of a mature rhinoceros footprint in the dirt. Etosha National Park, Namibia
amethyst mine
Shoe prints in a sandy path
Traces of Dinosaur in Dinosaur valley State Park / Texas
The famous offroad Shafer trail in the canyon near Moab, reaching Canyonland National park, Utah. Desert landscapes by the trail
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Dark rough natural granite surface background
Dinosaur footprint tracks in cement sidewalk.
Hardy plant found in Northern South Africa.
Drawing in the sand the story of dream time
Dinosaurs Footprints, the Monumento Natural das Pegadas de Dinossáurios de Ourém Portugal
stone surface with footprints of prehistoric animals out of focus with grain
Adventures in the Southwest USA, paleontologist at work
Fossils and shells from the Devonian period are imbedded in the limestone banks along the Ohio River at the Falls of the Ohiao State Park in Indian
During the late Jurassic Period about 150 million years ago, dinosaurs congregated along the shores of a vast freshwater lake in what is now southeastern Colorado. They left behind large trackways in the mud which shows up today eroded by river waters as over 1300 dinosaur footprints in limestone along the Purgatoire River. Most of these tracks are by made by herding Apatosaurus or sauropod dinosaurs. Part of the Picket Wire Canyonlands, the tracksite is the largest dinosaur tracksite in North America.
La costa di Tentizzos a Bosa, Sardegna, Planargia, Bosa
Marine mammal bone (Cetacea) and other fossils outcrop on the beach at Capitola City Beach, California, USA.
This image shows a close-up of a person's lower body from a top-down perspective. The person is wearing a sneaker and what appears to be a part of a plaid-patterned shorts or skirt. The sneaker is on a brown, stony or dry, cracked earth terrain, with various small stones and textures visible. The ground is parched, suggesting a dry or arid environment. To the left of the person's foot is an object that appears to be a broken or discarded piece of equipment, possibly a tool with a blue end, partially buried in the ground. The person's shadow can be seen cast on the ground to the right, indicating that the sun or light source is shining from behind.
An archaeological site and human bones on the island of Gran Canaria
Dinosaur Valley State Park in Glen Rose,Texas showing Dino tracks over 100 million years old.
Dinosaur footprint in a rock. The image shows the biologist's footwear and a hand holding a ruler to measure the length of the footprint. Vertical
Dinosaur footprint in stone, nature and extinct animals
Stone heart in a stone heap
Free Images: "bestof:Pegadas de Sauropodes.JPG 2003-05-24 own assumed Juntas Dinosaur footprints"
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