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LOT 2360
Cut and Polished Ammonite Display Pair
JURASSIC PERIOD, CIRCA 199-145 MILLION YEARS B.P.
4 - 4 in. (218 grams total, 9.9-10.2 cm).
The ammonite showing the internal gas chambers, some with crystallisation. [2, No Reserve]
ProvenanceFrom a Lincolnshire, UK, collection.
CONDITIONTimeLine 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:
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Fossil Ammonoid Group
Triassic-Jurassic Period, circa 251-174 million years B.P.Sold for (Inc. bp): £26
Comprising: a polished Goniatite from East Timor, Indonesia; a Perisphinctes ammonite. 502 grams total, 79-93 mm
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. -
Fossil Brittle Star on Matrix
Ordovician Period, circa 485-443 million years B.P.Sold for (Inc. bp): £78
An irregular matrix with Ophiuroidea sp. specimen. 362 grams, 16 cm
From a Cambridgeshire, UK, collection. -
Historic Roman 'Spartan Basalt' Cut Green Porphyry Strip Group
Sold for (Inc. bp): £143
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.
