 According to one author (Sider, 2006), there seems to be disagreement concerning the following assertion: dinosaurs exist. Presentists are understood to deny this claim, while eternalists are supposed to affirm it. If those who endorse the claim understand the verb ‘exist’ to be tenseless and those who deny it take ‘exist’ to be a present tense verb, then both sides seem to endorse correct claims. There is in this instance, however, no univocal statement that is being disputed, since ‘exist’ is understood differently by the two sides. This observation has led many to try to state a version of presentism that is neither trivial nor obviously false and to locate precisely the point at which it differs from non-presentist views. (See Crisp (2004a,b), Ludlow (2005), Wüthrich (2012), Golosz (2013). Tallant (2013) reviews several such efforts negatively and adds one of his own.)