It's a small rock with fossilized seashells.
18 May 2025
Description

Rock with fossils

Dimensions

About 8" x 6"

Acquired from
Inherited
For sale
Yes
Answered within about 6 hours
By Amber R
May 19, 03:10 UTC
Fair Market Value
$15 - $50 USD
Suggested Asking Price $25 USD
What does this mean?

The fossil is embedded in a rough, light brown sedimentary rock matrix, likely limestone or sandstone, measuring approximately 8" x 6" inches based on the visible tile background. It contains multiple marine shell fossils, primarily brachiopods, identifiable by their ribbed, fan-like structures with concentric growth lines; one prominent specimen on the left side shows a classic bilaterally symmetrical shell about 2–3 inches wide. These fossils likely date to the Paleozoic era (541–252 million years ago), as brachiopods were abundant then, and the rock’s texture suggests a marine depositional environment.

Brachiopods, often called "lamp shells," are marine invertebrates with a rich evolutionary history spanning over 500 million years. Their evolution reflects adaptations to changing marine environments, competition, and mass extinction events. They can be found in most all areas of the world as millions of years of ancient lakes and rivers flood and receded across the land.

Hi, Fred,
Do you know where this section was excavated? Was it form the US east coast? That information could help me determine the type of specimen in the sandstone matrix. I do not believe that the example has a very high resale value; but I can certainly give you more information on it, and write up suggestions for creating a display for this fossil example, as they are all very intriguing objects of art.
Thank you, Amber

Fred bauer May 19, 03:31 UTC

I wish I knew more about it. My dad had it for many years. I don't remember where he got it. I took it when he died in 2014 and I've had it ever since. I wish I knew where it came from.

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