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LOT 2305
Natural History - Fossil Star Fish Group
ORDOVICIAN PERIOD, CIRCA 485.4-443.8 MILLION YEARS B.P.
3 3/8 - 4 3/4 in. (539 grams total, 8.5-11.9 cm).
Comprising three irregular matrices, each containing a Petraster sp. specimen. [3, No Reserve]
ProvenanceEx 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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Natural History - Large Fossil Megalodon Giant Shark's Tooth
Lower Palaeolithic Period, circa 400,000 B.P.Sold for (Inc. bp): £650
From Carcharocles megalodon, an extinct genus of world's largest shark, displaying some good enamel and sharp serrated edges. 423 grams, 13.5 cm
Found by scuba divers, May River, South Carolina, USA.
Carcharodon megalodon is regarded as one of the largest and most powerful marine predators in vertebrate history and likely had a profound impact on structuring of the marine communities. Fossil remains indicate that this giant shark reached a length of more than 16 metres (52 ft) and also affirm that it had a cosmopolitan distribution. Scientists suggest that in life it looked like a stockier version of the great white shark, Carcharodon carcharias. -
Natural History - Mosasaur Fossil Tooth Group
Cretaceous Period, 145-65 million years B.P.Sold for (Inc. bp): £72
Comprising a pair of Mosasaur prognathodon sp. teeth; repaired. 54 grams total, 48-52 mm
Ex Cambridgeshire, UK, collection. -
Natural History - Knightia Fossil Fish Plate
Eocene Period, 56-33 million years B.P.Sold for (Inc. bp): £59
The rectangular matrix containing a large Knightia alta sp. specimen. 185 grams, 14.5 cm
From Green River Formation, Wyoming, USA. Ex 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.
