Whitardolithus Ordovician Trinucleid Trilobites

Whitardolithus sp

Trilobites Order Asaphida, Family Trinucleidae

Geological Time: Lower Ordovician, Llandeilo Series

Size (25.4 mm = 1 inch): Complete trilobite: 15 mm long by 216 mm wide, Cephalon only: 19 mm long by 17 mm wide on an 80 mm by 65 mm matrix

Fossil Site: Middleton Formation, Shropshire, United Kingdom

Code: MF47

Price: $225.00

Whitardolithus TrilobitesDescription: Well-preserved example of a member of the Order Asaphida, Family Trinucleidae, with a dramatically-displayed genal spines. The cephalic pits (fenestrae) are also 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. This is a fine pair of trilobites, one of which is complete. The thorax on the other is either missing or curled up beneath the large cephalon.

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