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LOT 2421
Natural History - Dinosaur Fossil Coprolite
JURASSIC PERIOD, CIRCA 140 MILLION YEARS B.P.
4 7/8 in. (1 kg total, 12.4 cm).
Comprising a large fragment of fossilised dung. [No Reserve]
ProvenanceFrom the Morrison Formation, Colorado, USA.
Collected 1930-1960.
From the collection of the palaeontologist R Gledhill.
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AUCTIONS:
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Natural History - Insects in Baltic Amber Group
Oligocene Age, circa 45 million years B.P.Sold for (Inc. bp): £156
Comprising seven pieces, all containing flies together with other inclusions. 2.31 grams total, 10-18 mm
Collected 1930-1960. From the collection of the palaeontologist R Gledhill. -
Natural History - Megalodon Giant Shark's Fossil Tooth
Miocene-Pliocene Period, 23-3.5 million years B.P.Sold for (Inc. bp): £130
With some good tooth enamel, from Carcharocles megalodon. 214 grams, 10.5 cm
From Florida, USA. Collected 1930-1960. From the collection of the palaeontologist R. Gledhill. -
Natural History - Fossil Guppy Fish Mortality Plate
Jurassic Period, circa 150 million years B.P.Sold for (Inc. bp): £78
The irregular matrix with a number of Poecilia reticulate sp. fish. 620 grams, 20.5 cm
Ex Lincolnshire, UK, collection.
In southwest Wyoming (and parts of Colorado and Utah) in the Green River Formation are found some of the world's most outstanding specimens of fossil fish. The Green River system was composed of three lakes: Lake Ulinta, Lake Gosiute and Fossil Lake. These Eocene lakes lay in a series of intermountain basins formed by geological events that uplifted the Rocky Mountains during the early Tertiary time. The climate was much different from the desert-like climate of this area today. Both the fauna (crocodiles, alligators, boa constrictors and some subtropical fish families) and the flora (such as large palm trees) indicate a climate much like that found along the Gulf Coast today. Large amounts of ash found in the sediments indicate that volcanoes were particularly active at this time.
