''Costonia'' is a genus of trilobites in the family
Trinucleidae
Trinucleidae is a family of small to average size asaphid trilobites that first occurred at the start of the Ordovician and became extinct at the end of that period. It contains approximately 227 species divided over 51 genera in 5 subfamilies. ...
. The species ''C. elegans'' is from the Ordovician of South
Shropshire
Shropshire (; abbreviated SalopAlso used officially as the name of the county from 1974–1980. The demonym for inhabitants of the county "Salopian" derives from this name.) is a Ceremonial counties of England, ceremonial county in the West M ...
, England.
See also
*
List of trilobite genera
References
External links
*
*
''Costonia''at insectoid.info
Trinucleidae
Asaphida genera
{{Asaphida-stub