Greenops
boothi
Class
Trilobita, Trilobite Order
Phacopida, Subfamily Asteropyginae
Geological
Time: Middle Devonian
Size: 28
mm long
Fossil Site:
Widder Shale, Hamilton Group, Arkona, Ontario, Canada
This
is a superbly preserved specimefrom trilobite Order Phacopida, Subfamily
Asteropyginae that has dramatic genal and pygidial spines. The Asteropyginae
trilobites have recently undergone extensive revision, with several
members of the genus now placed in the recently-erected genera Bellacartwrightia
and Kennacryphaeus. Most are usually found as disarticulated specimens,
but this one is quite complete, with fine eye facets and pustules
on all parts of the exoskeleton. It is surrounded by other “trilo
bits”: a partial cranidium and pygidium as well as several
brachiopod shells.
Also
see: Canada Trilobites
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