Loading, please wait...
LOT 1756
Natural History - Fossil Brittle Star Group
ORDOVICIAN PERIOD, 485-444 MILLION YEARS B.P.
3 3/4 - 4 in. (473 grams total, 9.5-10.1 cm).
A group of three brittle stars Ophiuroidea sp. on matrix. [3, No Reserve]
ProvenanceFrom El Kaid Errami, Tafilalt, Morocco, North Africa.
From an old German collection.
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.
-
.jpg)
Natural History - Pair of Barasaurus Skeletons
Early Triassic Period, circa 255 million years B.P.Estimate: £1,200 - 1,700 (+bp*)
Opening Bid: £333
A pair of complete fossil Barasaurus besairiei skeletons on a matrix. 2.08 kg, 29.5 cm wide
From Plateau de I'lsala, Madagascar. Acquired 1950s-1960s. From an old Bristol, UK, paleontological collection.
Barasaurus is an extinct genus of the Owenettid procolophonoid parareptile. -
Natural History - Blue Calcite Mineral Specimens
Sold for (Inc. bp): £33
A group of 50 blue calcite mineral specimens with waxy lustre. 514 grams total, 25-43 mm
From Mexico. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Knightia Fossil Fish
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £39
A Knightia alta fossil fish in matrix. 277 grams, 13 x 9.5 cm
From Wyoming, Green River Formation, U.S.A. Acquired during the 1980s. From the Pradi Collection, Boston, U.S.A.
Seasonally, some 56 million years ago, in the Green River Region of Wyoming, torrential rains fell on the mountains. The rain flowed down the mountain sides, forming wide shallow lakes in the valley below. During the dry season, these lakes evaporated (similar to certain parts of Africa today). Millions of fish died in this short period of time. This climatic cycle happened over a 20-thousand-year period. Layer upon layer of mud was deposited over these years, entombing huge numbers of fish. At a much later date volcanic activity uplifted this area to expose their fossils.
