Prehistoric Fern & Eocene Cricket Fossils (Auction 2026-06-05, Lot 131)

$289.13

North America, United States, Missouri and Colorado, Pennsylvanian to Eocene periods, ca. 323 million to 48.5 million years ago. A compelling grouping of fossil specimens including fern fronds of Odontopteris brardii preserved in Bonner Springs Shale from Platte County, Missouri, alongside two insects identified as crickets (Gryllidae) from the Green River Formation, Parachute Creek Member, Colorado. The fern represents Carboniferous coal forest flora, while the insect fossils date to the later Eocene era, illustrating a wide temporal range of preservation in fine-grained sedimentary matrices. Size: 6.8″ L x 4″ W (17.3 cm x 10.2 cm)

Provenance: private Hagar collection, Wildwood, Missouri, USA

Condition: The stone matrices remain stable, showing natural edges and some expected surface irregularities from splitting and extraction.