User:Abyssal/Portal:Ordovician/DYK/2


 * ... that the extinct trilobite Bumastus (artist's rendition pictured) was named after its resemblance to large grapes?
 * ... that the fossil bivalve Emiliodonta shared its name with a coccolithophore for about a decade?
 * ... that the Ordovician age bivalve Villicumia has overlapping teeth seen in few other bivalves?
 * ... that fossils of the extinct bivalve family Praenuculidae have been found on every continent except Antarctica?
 * ...that ostracoderms are the earliest known vertebrate animals?