Lot 118

Late Cretaceous Fossil Egg Clutch Attributed to Troodon

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Late Cretaceous Fossil Egg Clutch Attributed to Troodon

Estimate: $6,500 - $9,750

Starting Bid: $3,250

(0 Bids)

June 5, 2026 9:00 AM MDT
Live Auction
Louisville, CO, US

Description:

North America or Siberia, Late Cretaceous period, ca. 77.5 to 76.5 million years ago. A clutch of eleven Troodon eggs, beautifully preserved in their reddish-brown matrix. The name Troodon refers to several species of bird-like dinosaurs found mainly in the northern Rocky Mountains, with a few specimens known from northern Alaska, Siberia, and the western Russia/China border. The eggs are elongated, with a grey-blue color and obvious shell structure underneath a thin layer of red-brown deposits. When born, Troodons may have been some of the smartest dinosaurs - their brain cases are similar to those of modern birds. They walked and ran on two long legs and had three-fingered hands that they would have used to hunt their food, primarily small lizards and mammals. Size: 5.75" L x 10.5" W x 4" H (14.6 cm x 26.7 cm x 10.2 cm)

Provenance: private Texas, USA Collection, ex-A Coin Exchange, Tarzana, California, USA, acquired at the Tucson Gem and Mineral Show in 2008

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Item # 201807

  • Condition: The eggs are preserved in the matrix and partially contained within it. The matrix has been repaired from three or four large pieces. Most of the eggs have had their shells professionally preserved with adhesive but this is almost indiscernible when looking at the whole. Great deposits on all surfaces with nice preservation of eggshell surfaces.

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Bid Increments
From: To: Increments:
$0 $299 $25
$300 $999 $50
$1,000 $1,999 $100
$2,000 $4,999 $250
$5,000 $9,999 $500
$10,000 $19,999 $1,000
$20,000 $49,999 $2,500
$50,000 $99,999 $5,000
$100,000 $199,999 $10,000
$200,000 + $20,000