内容简介
Dinosaursaren?ttheonlyanimalsthatroamedtheearthduringtheprehistoricera.TherewastheArchelon,thelargestturtleever,measuringover13feet,andtheArgentavis,thelargestbirdeverrecorded,weighinginatover140pounds!VeteranAllAboardScienceReaderauthorGinjerL.ClarkepacksMaxedOut!withfactsabouthumongousanimalsfromthistimeperiod.