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LOT 1699
Natural History - Large Meteoritic Tektite Group
1 5/8 - 2 in. (850 grams total, 41-52 mm).
A group of ten large tektite meteoric glass, melted terrestrial rock splashed from an impact crater, most roughly ovoid in shape. [10, No Reserve]
ProvenanceMineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
Tektites are lumps of black or dark grey natural glass produced from melted crustal rocks that are caused by large hypervelocity meteorite impacts on sediments.
CONDITIONTimeLine Auctions follows a vetting process to ensure the authenticity and legality of all items, reinforcing our commitment to integrity and responsible trading. Each antiquity, antique, and coin lot undergoes thorough examination by a vetting committee of at least ten external specialists, professional trade association members, scientists, and archaeologists: Our Vetting Process
AUCTIONS:
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Natural History - Mioplosus Fossil Fish in Matrix
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £72
A rectangular sedimentary matrix displaying a Mioplosus sp. fossil fish. 937 grams, 17.8 x 13 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. -
Natural History - Fossil Lacewing
Cretaceous Period, 108-92 million years B.P.Sold for (Inc. bp): £13
A fossil lacewing in matrix. 162 grams, 93 mm
From Santana Formation, Brazil. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection. -
Natural History - Knightia Fossil Fish Group
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £35
A group of three oval sedimentary matrices, each displaying one or two fossil Knightia sp. fish. 133 grams total, 73-82 mm
Ex Lincolnshire, UK, collection.
