Lot 578

Brontotheriidae Molar Group, Jawbone Section, Nebraska

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Brontotheriidae Molar Group, Jawbone Section, Nebraska

Estimate: $1,800 - $3,000

Starting Bid: $850

(0 Bids)

by Artemis Fine Arts
July 30, 2026 8:00 AM MDT
Live Auction
686 S. Taylor Avenue
Suite 108
Louisville, CO, US 80027

North America, United States, Nebraska, Late Eocene period, ca. 35 to 34 million years ago. A group of three molar teeth with gray enamel, two still anchored within a section of original jawbone, representing a member of the Brontotheriidae. The teeth show broad, worn chewing surfaces and strong roots, adapted for processing soft vegetation. Brontotheres were large prehistoric ungulates with heavy bodies, stout legs, and paired nasal appendages, resembling rhinoceroses but more closely related to early horses. They browsed in dense, forested environments, but changing climates and the spread of open grasslands contributed to their decline and eventual extinction. Size: 7" L x 2" W x 4" H (17.8 cm x 5.1 cm x 10.2 cm); 5.5" H (14 cm) on included custom stand.

Provenance: private Berthoud, Colorado, USA collection

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Item # 202230

  • Condition: Repaired, with roots reattached to crowns, and the teeth reattached to each other with adhesive. Breaklines visible throughout. Restoration with new material to the tips of roots.

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Bid Increments
From: To: Increments:
$0 $749 $25
$750 $1,499 $50
$1,500 $2,999 $100
$3,000 $7,499 $250
$7,500 $14,999 $500
$15,000 $29,999 $1,000
$30,000 $99,999 $5,000
$100,000 + $10,000