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The sinkhole that contains the fossil-rich deposits of the Gray Fossil Site is the result of a series of overlapping collapse events that ultimately formed one large basin. Sizable boulders deposited within the lake sediments indicate that the edge of the sinkhole once featured high walls or overhangs where chunks of rock could occasionally ...
Dozens of mammoths were trapped in a South Dakota sinkhole over 100,000 years ago.. A bulldozer uncovered the first fossil 50 years ago, and experts have been finding bones ever since.
Scientists have uncovered evidence of ancient humans engaged in a deadly face-off with a giant sloth, showing for the first time how our ancestors might have tackled such a formidable prey.
The Pipe Creek Sinkhole preserves an ancient wetland. It was created by the collapse of a limestone cave in a Silurian reef formation. That left a steep-sided depression about 75 meters (246 ft) long, 50 meters (164 ft) wide and 11 meters (36 ft) deep.
[1] [2] [3] Most paleoburrows are likely made by giant armadillos and large ground sloths, depending on their size. [4] Thousands of examples have been identified across South America, mostly in the Brazilian states of Santa Catarina and Rio Grande do Sul. [4] The first paleoburrow was discovered in Rondonia by Amilcar Adamy in 2010. [5]
One small U.S. town is known for having more sinkholes than it does people: In Fountain, Minnesota, there are only about 400 residents and 10,000 sinkholes, KARE reported. Sinkhole accidents in US ...
The Page–Ladson archaeological and paleontological site is a deep sinkhole in the bed of the karstic Aucilla River (between Jefferson and Taylor counties in the Big Bend region of Florida) that has stratified deposits of late Pleistocene and early Holocene animal bones and human artifacts.
Activists say a growing chasm on the South Side is a dangerous sinkhole. Metro Parks says it was actually caused by flooding and won't impact plans for a park.