Loading, please wait...
Details
LOT 2004
Natural History - Fossil Bivalve Group
JURASSIC PERIOD, CIRCA 150 MILLION YEARS B.P.
2 3/4 - 3 1/4 in. (434 grams total, 71-83 mm).
A pair of fossilised bivalves. [2, No Reserve]
Provenance
From the Morondava River Basin, Atsimo-Andrefana region, Southwest Madagascar.
From an old Oxfordshire, UK, fossil and mineral collection.
VETTING:
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.
RELATED LOTS
-
Natural History - Pink Dolomite Crystal Group
Sold for (Inc. bp): £1
A group of ten pink dolomite mineral specimens with crystal crust masses. 1.1 kg total, 7.5-10.2 cm
Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Cut and Polished Chiastolite Mineral Specimen Group
Sold for (Inc. bp): £20
A group of ten cut chiastolite mineral section, each with a polished upper and lower face and held in a white card collector's tray. 314 grams total, 31-48 mm
From China. Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's). -
Natural History - Rastellum Fossil Bivalve
Jurassic Period, circa 155 million years B.P.Sold for (Inc. bp): £33
A Rastellum carinatum fossil bivalve; held in a card collector's tray. 105 grams, 61 mm
From Madagascar. Ex Cambridgeshire, UK, collection.
Rastellum carinatum specimens have wide, angled ribs that have led to it being called the 'denture clam'; the zig-zag join between the two shells stopped coarse dirt and debris entering the shell and damaging its soft body. Like modern oysters, it lived in shallow coastal waters including the interstitial zone and fed on food particles that it filtered out of the sea water.