claim: Doxycycline may cause eggs.
evidence: Paraspirifer is a genus of large brachiopods -LRB- up to about 7.5 cm -RRB- that lived during the late Lower and Middle Devonian in what now are Germany , Spain , Morocco and the United States -LRB- New York State and Ohio -RRB- .. genus. genus. Devonian. Devonian