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LOT 2456
Natural History - Fossil Sporadoceras Goniatite
UPPER DEVONIAN PERIOD, 385-359 MILLION YEARS B.P.
4 3/8 in. (446 grams, 11 cm).
Free-standing and polished to reveal the dividing gas chambers. [No Reserve]
ProvenanceFrom the Atlas Mountains, Morocco, North Africa.
Acquired 1950s-1960s.
From an old Bristol, UK, paleontological collection.
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AUCTIONS:
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Natural History - Knightia Fossil Fish Group
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £52
Comprising seven complete and two partial Knightia alta fossil fish in a rectangular matrix. 373 grams, 15.3 x 9.8 cm
Fine condition.
Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.
Seasonally, some 56 million years ago, in the Green River Region of Wyoming, torrential rains fell on the mountains. The rain flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes evaporated (similar to certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud was deposited over these years, entombing huge numbers of fish. At a much later date volcanic activity uplifted this area to expose their fossils. -
Natural History - Large Ludwigia Fossil Ammonite
Middle Jurassic Period, 200-145 million years B.P.Sold for (Inc. bp): £52
Polished through the shell to reveal the dividing gas chambers of Ludwigia murchisonae. 1.27 kg, 18 cm
From Horn Park, Beaminster, Dorset, UK. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Polished Goniatite Display
Devonian Period, 417-354 million years B.P.Sold for (Inc. bp): £33
The ammonoid cephalopod on a textured matrix, polished to reveal the internal gas chambers. 1.24 kg, 21.5 cm
From a Cambridgeshire, UK, collection.
