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LOT 2498
Natural History - Fossil Dragonfly Larvae
MIOCENE PERIOD, 16 MILLION YEARS B.P.
3 1/2 x 3 1/2 in. (85 grams total, 90 x 90 mm including case).
On amorphous matrix containing Libellula doris specimens. [No Reserve]
ProvenanceFrom Piedmont, Italy.
Acquired 1980s.
From an old Bristol, UK, collection.
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AUCTIONS:
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Natural History - Woolly Mammoth Fossil Tusk Section
Pleistocene Period, circa 40,000 years B.P.Sold for (Inc. bp): £20
With some attractive patterning. 122 grams, 20 cm
From the North Sea. From an old Bristol, UK, collection. -
Natural History - Large Fossil Diplomystus Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £33
Set in a rectangular shale matrix. 395 grams, 15.2 cm
From Wyoming, Green River Formation, U.S.A. From an old Bristol, 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. -
Natural History - Argochampsa Fossil Crocodile Skull
Paleocene Period, 66-56 million years B.P.Estimate: £600 - 800 (+bp*)
Opening Bid: £333
The upper part of Argochampsa krebsi on a sandy matrix wrapped in a plaster field jacket. 4.9 kg, 45 cm
Fine condition.
From Morocco. From an East Anglian, UK, collection.
Argochampsa or 'Argo crocodile' is an extinct genus of eusuchian crocodylomorph, usually regarded as a gavialoid crocodilian, related to modern gharials. It lived in the Paleocene Period in Morocco. Described by Hua and Jouve in 2004, the type species is A. krebsi. Argochampsa and had a long narrow snout, and apparently marine in its behaviour.
