Ichthyovenator
... that the spinosaurid dinosaur Ichthyovenator had two sails on its back?
... that the <a href="./Spinosauridae" id="mwCG0" rel="mw:WikiLink" title="Spinosauridae">spinosaurid</a> dinosaur <i id="mwCG4"><b id="mwCG8"><a href="./Ichthyovenator" id="mwCHA" rel="mw:WikiLink" title="Ichthyovenator">Ichthyovenator</a></b></i> had two <a href="./Neural_spine_sail" id="mwCHE" rel="mw:WikiLink" title="Neural spine sail">sails</a> on its back?