''Acastoides'' is an extinct genus of
trilobite that lived during the
Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozo ...
and
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...
. It has been found in Bolivia, France, Morocco, Poland, Turkey and the United Kingdom.
Distribution
* ''A. constricta'' is found in the Silurian of the United Kingdom (Wenlock, Woolhope Shale, Worcestershire, Malvern).
Taxonomy
Species previously assigned to ''Acastoides''
* ''A. verneuili'' = ''Calmonia terrarocenai''
See also
*
List of trilobites
References
External links
Photos of ''Acastoides sp.''''Acastoides''at the
Paleobiology Database
Acastidae
Prehistoric life of Europe
Devonian trilobites
Wenlock first appearances
Eifelian extinctions
Silurian trilobites of Europe
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