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LOT 1805
Natural History - Lyme Regis Fossil Ammonite Group
JURASSIC PERIOD, 199-145 MILLION YEARS B.P.
2 3/8 - 3 3/4 in. (824 grams total, 61-96 mm).
A group of six matrices, each containing one or multiple Promicroceras planicosta fossil ammonites. [6, No Reserve]
ProvenanceFrom Lyme Regis, Dorset, UK.
Ex Lincolnshire, UK, collection.
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AUCTIONS:
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Natural History - Knightia Fossil Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £33
A Knightia alta fossil fish in matrix. 678 grams, 18 cm wide
From 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. -
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Natural History - Three-Dimensional Mosasaur Skull with Vertebrae
Cretaceous Period, 145-65 million years B.P.Estimate: £2,500 - 3,500 (+bp*)
Opening Bid: £1,250
A fossil Mosasaur sp. displaying the skull with at least 33 teeth surviving in the upper and lower jaw, many with remains of enamel, alongside the remains of at least 15 of the animal's vertebrae; a juvenile on a sedimentary matrix wrapped in a plaster field jacket. 19.7 kg, 62 cm wide
From a Cambridgeshire, UK, collection. This lot has been checked against the Interpol Database of stolen works of art and is accompanied by search certificate number no.11722-197505.
Mosasaurs (from the Greek for 'lizard') were aquatic dinosaurs which probably gave birth to live young. -
Natural History - Quartz Crystal 'Flower' Specimen
Sold for (Inc. bp): £7
A quartz crystal 'flower' specimen. 312 grams, 12.6 cm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's).
