>>48164540At the end of the day Birdon, the Solarite and Magmar can all be traced back to the Karura. The basic idea of a fire breathing bird face with a humanoid body is shared among them all, however, one of Magmar's most prominent design traits is the seemingly random ass shaped forehead that covers part of its eyes, that is something it only shares with the solarite and its too particular to be dismissed as coincidence.
>>48164518Because god forbid japanese fans of monster/special effects films being aware of western monster/special effects films. Its not like Godzilla wasn't directly influenced by the Beast from 20 000 Fathoms or anything.