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LOT 2398
Cut and Polished Psaronius Brasiliensis Fossil Fern Slice on Stand
PALEOZOIC ERA, PERMIAN AGE, CIRCA 280,000-250,000 B.P.
5 7/8 in. (1.07 kg total including stand, 14.8 cm).
Cut section from the trunk of an extinct tree fern showcasing the complex central vascular system. [No Reserve]
ProvenanceFrom Brazil.
From the private collection of Kenneth Machin (1936-2020), Buckinghamshire, UK; his collection of antiquities and natural history was formed since 1948; thence by descent.
Accompanied by a copy of an old typed information slip.
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AUCTIONS:
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LOT 2398
Cut and Polished Psaronius Brasiliensis Fossil Fern Slice on Stand
Estimate £50 - 70€58 - 81 (for guidance only)$68 - 95 (for guidance only)
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Manganese Dendrite Landscape Plaque Group
Estimate: £30 - 40 (+bp*)
Opening Bid: £5
A group of three sawn rectangular shale specimens, each displaying manganese oxide dendrites resembling ferns and branching vegetation. 397 grams total, 10.9 x 7.2-13.7 x 7.7 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK. -
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Woolly Rhinoceros Large Upper Jaw Tooth
Devensian Period, circa 110,000-12,000 years B.P.Estimate: £40 - 60 (+bp*)
Opening Bid: £5
Large size tooth with partial root and dark brown enamel. 210 grams, 96 mm
Perma frost of Siberia. From a Netherlands collector in the 2020s. From a private collection. -
Historic Roman 'Spartan Basalt' Cut Green Porphyry Strip Group
Estimate: £80 - 100 (+bp*)
Bids: 3 | Current Bid: £55
Cut and polished sections, mined in Greece, cut and polished on both sides, probably recycled material mined in ancient Roman times. 225 grams total, 4.4-15.1 cm
Ex Mineral Imports, London, UK. Gregory, Bottley & Lloyd (Gregory's), Harwich, UK.
Also known as Lapis Lacedaemonius and Porfido Verde Antico, a type of green porphyry quarried in Greece. Spartan basalt is a form of andesite or volcanic rock known today only from a single source in the village of Krokees on the Peloponnese in Greece. In addition, ancient sources mention a quarry of Lapis Lacedaemonius in Taygetus.
