Specimen U (IMAGE)

Geological Society of America

Specimen U

Caption

"Specimen U" illustrates a fossil bed showing shonisaur vertebral disks arranged in curious linear patterns with almost geometric regularity. The arranged vertebrae resemble the pattern of sucker discs on a cephalopod tentacle, with each vertebra strongly resembling a coleoid sucker.

Credit

Used with permission of Mark McMenamin.

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