abstract:The temporal paradox, or time problem is a controversial issue in the evolutionary relationships of birds. It was described by paleornithologist Alan FeducciaFeduccia, Alan (1994) "The Great Dinosaur Debate" Living Bird.
For years, skepticshadraisedthe so-calledtemporalparadox: there were nofeathereddinosaursolderthanArchaeopteryx, sobirdscouldnothave arisen from dinosaurs.