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![Collection of Nine [9] Boxed Madagascan Fossil Wood Display Pieces](https://timelineauctions.com/upload/images/items/small/251099-s.jpg)
Collection of Nine [9] Boxed Madagascan Fossil Wood Display Pieces
Circa 135-200 million years B.P.Sold for (Inc. bp): £13
Comprising nine specimens, each showing some bark detail and supplied in a labelled specimen tray. 433 grams total, 30-56 mm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
![Group of Eight [8] Boxed Quartz and Smoky Quartz Crystal Specimens](https://timelineauctions.com/upload/images/items/small/251109-s.jpg)
Group of Eight [8] Boxed Quartz and Smoky Quartz Crystal Specimens
Sold for (Inc. bp): £33
Comprising seven polished quartz specimens and one smoky quartz specimen from Brazil. 503 grams total, 40-52 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Fossil Priscacara Fish
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £182
On a rectangular matrix, showing good detail, especially on the fins. 411 grams, 21.2 cm
From a Cambridgeshire, UK, collection. -
![Collection of Ten [10] Cut and Polished Assorted Agate Geode Halves](https://timelineauctions.com/upload/images/items/small/250977-s.jpg)
Collection of Ten [10] Cut and Polished Assorted Agate Geode Halves
Sold for (Inc. bp): £7
Comprising ten geode halves with internal cavities, most with crystal lining. 1.43 kg total, 52-94 mm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
![Group of Two [2] Boxed Madagascan Perisphinctid Fossil Ammonites](https://timelineauctions.com/upload/images/items/small/251090-s.jpg)
Group of Two [2] Boxed Madagascan Perisphinctid Fossil Ammonites
Jurassic Period, circa 170 million years B.P.Sold for (Inc. bp): £39
A pair of Perisphinctes sp. ammonite specimens; each on a display tray with an old Gregory, Bottley & Lloyd label. 312 grams total, 78-83 mm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Large Purple Cut and Polished Agate and Quartz Crystal Geode Slice
Sold for (Inc. bp): £111
A translucent geode slice showing banding on the outer edge and a crystal-lined centre, dyed. 703 grams, 32 cm
From Brazil. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Amethyst Crystal Geode Display
Estimate: £1,000 - 1,400 (+bp*)
A rounded geode section, the undulating inner surface lined with small prismatic amethyst crystals; mounted on a custom-made display stand. 10 kg total, 35 cm including stand
From Artigas, Uruguay. Property of a London lady. -
Cut and Polished Amethyst Slice
Sold for (Inc. bp): £59
An irregular slab of amethyst 'chevrons'. 176 grams, 12 cm
From a Cambridgeshire, UK, collection. -
Psychopyge Elegans Fossil Trilobite on Matrix
Middle Devonian Period, circa 380 million years B.P.Sold for (Inc. bp): £338
Showing the characteristic long snout, long genal spines, long pleural spines, and bulbous cephalon. 865 grams, 15.3 cm
From a Cambridgeshire, UK, collection. -
![One Hundred and Thirty [130] Amethyst Crystal Geode Sections](https://timelineauctions.com/upload/images/items/small/251037-s.jpg)
One Hundred and Thirty [130] Amethyst Crystal Geode Sections
Sold for (Inc. bp): £7
Boxed group of amethyst geode sections in various sizes, showing well-formed light purple crystals. 2.65 kg total including box, 18-52 mm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
Selenite Crystal Wand Specimen Group
Sold for (Inc. bp): £26
A group of twenty selenite wands with pearly lustre. 460 grams total, 53-74 mm
Fine condition.
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Fossil Knightia Fish in Matrix
Eocene Period, circa 58-36 million years B.P.Sold for (Inc. bp): £59
A Knightia alta fish on a rectangular limestone matrix with remains of another one on the reverse. 453 grams, 17.8 cm
From a Cambridgeshire, 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.
