By Max McNabb
There’s a mystery on display at the Mt. Blanco Fossil Museum in Crosbyton, Texas: What appears to be evidence of man-made artifacts that were embedded in sandstone reported to be 300 million years old.
Curator Joe Taylor recently molded a series of depressions left by four strange objects that left behind impressions in hard Pennsylvanian sandstone – a layer of strata said to be 300 million years old.
The appearance of the objects is similar to modern plumbing valves, complete with hex-head nuts. The site of the discovery is within the tri-state area of Oklahoma, Kansas, and Missouri. Its precise location is being kept under wraps until a further investigation has concluded.
No one knows when the actual objects themselves, which made the depressions, were removed. Chisel marks are discernable at the small ends