This question already has an answer here:
So I have an interesting scenario:
You hold an ASEL private pilot certificate in the USA with high-performance and complex endorsements. You also fly a Cessna 206 on a regular basis.
Given that all your certs and currencies are valid, are you allowed to act as the sole PIC of a Cessna 206 amphibian as long as you perform your takeoffs and landings on land only?