Fossil Crinoid Mortality Plate. Elegantocrinus hemisphaericus & Macrocrinus mundulus . Mississippia...

Description

Fossil Crinoid Mortality Plate
Elegantocrinus hemisphaericus & Macrocrinus mundulus
Mississippian
Edwardsville Formation
Montgomery County, Indiana, USA

This classic Fossil Crinoid plate from the renowned Edwardsville Formation of Crawfordsville, Indiana features a diverse assemblage including Elegantocrinus hemisphaericus and Macrocrinus mundulus, taxa long celebrated among collectors and researchers alike. Crawfordsville material dating to the Mississippian has historically set the standard for crinoid preservation in North America, and plates featuring multiple species in association are increasingly uncommon on the market. The blocky gray matrix supports numerous well-preserved, intricately prepared crowns and twisted stalks, displayed in high relief, with some individuals rising from higher portions of the uneven rock surface to create striking visual depth. Although the crowns show abundant impact effects consistent with both life effects and ancient burial prior to extraction, the preparation reveals superb structural details on all the specimens. Substantial in both weight and scientific value, this thick and impressively populated slab represents a compelling snapshot of echinoderm diversity and remains a cornerstone specimen from one of America's most storied fossil localities.
Overall Measurements: 11.02 x 9.25 x 2.36 inches (28.00 x 23.50 x 6.00 cm)

Estimate: $1,000 - up.

*Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. Heritage does not guarantee the condition of frames and shall not be liable for any damage/scratches to frames, glass/acrylic coverings, original boxes, display accessories, or art that has slipped in frames. All lots are sold "AS IS" under the Terms & Conditions of Auction.