Here is a interestion trilobite cluster with servile different species and genus on it.
The rarest determinable species is representated as  a cephalon of Dionide turnbulli.
There are also servile partial articulated specimens of Stapeleyella inconstans. And a head of Ampyx cf linleyensis. Some bits and pieces may origin from Barrandia homfrayi.
So we have here an unusually rich trilobite faunal association on a small slap of shale.

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