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LOT 2857
Fossil Knightia Multi Fish Plate
EOCENE PERIOD, CIRCA 58-36 MILLION YEARS B.P.
6 1/2 in. (364 grams, 16.4 cm).
Knightia alta fish on a rounded limestone matrix. [No Reserve]
ProvenanceFrom a Cambridgeshire, UK, collection.
FootnotesIn 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.
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AUCTIONS:
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Very Large Fossil Diplomystus Fish on Matrix
Eocene Period, 58-36 million years B.P.Estimate: £1,000 - 1,400 (+bp*)
Current Winning Bid: £500
Diplomystus sp. fossil fish on a matrix slab showing good detail to the spine and ribs. 18 kg, 58.5 x 46 cm
From Wyoming, USA. From a Cambridgeshire, UK, collection. -
Historic Roman 'Spartan Basalt' Cut and Polished Green Porphyry Sheet Group
Sold for (Inc. bp): £143
Cut and polished sections, mined in Greece, cut and polished on both sides, probably recycled material mined in ancient Roman times. 221 grams total, 11.9-14.5 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
Also known as Lapis Lacedaemonius and Porfido Verde Antico, a type of green porphyry quarried in Greece. Spartan basalt is a form of andesite or volcanic rock known today only from a single source in the village of Krokees on the Peloponnese in Greece. In addition, ancient sources mention a quarry of Lapis Lacedaemonius in Taygetus. -
Collection of Fourteen [14] Amethyst Crystal Geode Display Peaces
Sold for (Inc. bp): £7
Boxed group of light to dark purple amethyst crystals on a matrix, one with crystals formed around a stalagmite. 2.78 kg total including box, 5.1-13 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.