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![Natural History - Polished Agate Pebble Group [100]](https://timelineauctions.com/zoom_images/zoomthumb/2/1/211367_900x900.jpg "Natural History - Polished Agate Pebble Group [100]")
![Natural History - Polished Agate Pebble Group [100]](https://timelineauctions.com/zoom_images/zoommap/2/1/211367_200x200.jpg "Natural History - Polished Agate Pebble Group [100]")
![Natural History - Polished Agate Pebble Group [100]](https://timelineauctions.com/upload/images/items/211367.jpg "Natural History - Polished Agate Pebble Group [100]")
LOT 2411
Natural History - Polished Agate Pebble Group [100]
3/4 - 1 1/2 in. (1.18 kg total, 21-37 mm).
Comprising different sizes and colours ranging from white to red and dark brown, some with attractive banding. [100, No Reserve]
ProvenanceEx Mineral Imports, London, UK.
Gregory, Bottley & Lloyd (Gregory's).
TimeLine 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:
TimeLine is a leading auction house specialising in antiquities, ancient art, collectables, natural history, coins, medals, and books. Our auctions offer museums, collectors, historians, and enthusiasts the opportunity to acquire unique and historically significant pieces.
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Natural History - 'Onchosaur' Fossil Rostral Spine Group
Cretaceous Period, circa 100-66 million years B.P.Sold for (Inc. bp): £39
Comprising three large fossil Onchopristus numidus sawfish rostral teeth. 21 grams total, 47-53 mm
From in the phosphate mine region, Khouribga, Morocco, North Africa. From a Cambridgeshire, UK, collection. -
Natural History - Fossilised Wood Section
Triassic Period, circa 250-200 million years B.P.Sold for (Inc. bp): £5
A section of fossilised wood with a polished face. 848 grams, 17 cm
From Madagascar. Acquired 1950s-1960s. From an old Bristol, UK, palaeontological collection. -
Natural History - Green River Fossil Fish Group
Eocene Period, circa 56-33 million years B.PSold for (Inc. bp): £59
Two Green River fish specimens Diplomystus sp. in a matrix. 243 grams, 15.8 cm
From Wyoming (Green River Formation), USA. From a 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.
