''Bvalbardites'' is an
extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
genus from a well-known class of
fossil marine
arthropods, the
trilobites. It lived during the early part of the
Arenig stage of the
Ordovician Period,
a
faunal stage which lasted from approximately 478 to 471 million years ago.
References
Ordovician trilobites
Trilobites of Europe
Ptychopariida genera
{{ordovician-animal-stub