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The hip bones are fully-formed and bird-like, i.e. the pubic bone points to the rear, unlike theropod dinosaurs (which had a forward-pointing pubic bone) from which evolution claims an ancestry. Despite this contradiction, some authorities prefer to place ''Archaeopterix'' within the order Avetheropoda, which includes such theropods as [[Tyrannosaurus|''Tyrannosaurus rex'']] and [[Spinosaurus|''Spinosaurus'']]<ref>http://paleodb.org/cgi-bin/bridge.pl?a=basicTaxonInfo&taxon_no=55483</ref>
The hip bones are fully-formed and bird-like, i.e. the pubic bone points to the rear, unlike theropod dinosaurs (which had a forward-pointing pubic bone) from which evolution claims an ancestry. Despite this contradiction, some authorities prefer to place ''Archaeopterix'' within the order Avetheropoda, which includes such theropods as [[Tyrannosaurus|''Tyrannosaurus rex'']] and [[Spinosaurus|''Spinosaurus'']]<ref>http://paleodb.org/cgi-bin/bridge.pl?a=basicTaxonInfo&taxon_no=55483</ref>
All known fossils - approximately twelve - were found in the Solenhofen limestone formation of southern Bavaria, Germany.
All known fossils - approximately thirteen - were found in the Solenhofen limestone formation of southern Bavaria, Germany.
== Criticism ==
== Criticism ==