Asaphus is a genus of trilobites, that is known from the Lower (upper Arenig) and Middle Ordovician of northwestern Europe (Sweden, Estonia, Saint Petersburg Area). == Description == The headshield (or cephalon) and tailshield (or pygidium) are semicircular and without a border (defined by a furrow or a change in convexity parallel to its margin)....Found on http://en.wikipedia.org/wiki/Asaphus
• (n.) A genus of trilobites found in the Lower Silurian formation. See Illust. in Append.Found on http://thinkexist.com/dictionary/meaning/asaphus/
[ New Latin , from Greek ... indistinct, uncertain.] (Paleon.)
A genus of trilobites found in the Lower Silurian formation. See Illust.
in Append. Found on http://www.encyclo.co.uk/webster/A/127
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