Loading, please wait...
![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.
-
Natural History - Fossil 'Diosaurus' Crocodile Skull and Vertebrae
Paleocene Epoch, 66-56 million years B.P.Sold for (Inc. bp): £442
Displaying the left side of the skull and jaws with teeth, with a number of vertebrae to the side, set on a sandstone matrix; possibly Argochampsa krebsi. 7.15 kg, 51 cm
From a Cambridgeshire, UK, collection. -
Natural History - Agatized Fossil Tree Trunk Cut Slice
Triassic Period, 251-199 million years B.P.Sold for (Inc. bp): £46
Polished on one side to show the dark brown banding with a central 'lava-like' dark red banding radiating from a small quartz filed cavity. 753 grams, 20 cm
From Madagascar. Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Knightia Fossil Fish Group
Eocene Period, circa 56-33 million years B.P.Sold for (Inc. bp): £26
Comprising three Knightia alta specimens, each on a round matrix. 140 grams total, 74-82 mm
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.
