- Acastella
"Acastella" is an extinct genus of
trilobite . It contains six species, "A. heberti", "A. jacquemonti", "A. prima", "A. roualti", "A. tanzidensis", "A. tiro".External links
* [http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=21425&is_real_user=0 "Acastella"] at the
Paleobiology Database
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