Spectacular Stapeleyella UK Ordovician Trilobites

Stapeleyella inconstans

Trilobites Order Asaphida, Family Trinucleidae

Geological Time: Ordovician, Llanvirn Series, (about 465 million years ago)

Fossil Size: Three trilobites up to 15 mm long by 18 mm wide with associated partial on a 45 mm by 47 mm matrix

Fossil Site: Stapeley Volcanics Member, Shelve Formation, Whitsburn Dingle, Leigh, Shropshire, United Kingdom

Code: UKF254

Price: $695.00

Description: Well-preserved specimens of a member of the Order Asaphida, Family Trinucleidae, this one is Stapeleyella inconstans. The genal spines and cephalic pits (fenestrae) are evident, the means by which this trilobite filtered detritus from the seafloor. The trilobite presumably hovered at the seafloor, using its legs to kick up particulates which then passed through the cephalic ring. In addition, there is a partial. Note the cephalic rim with pits evident. Of the three mostly complete examples one is a most unusual ventral example. Multiple examples are rare, with one with so many examples more rare indeed.

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Stapeleyella inconstans

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