a coach gets two opportunities per game of challenges in the nfl.
a coach gets two opportunities per game of challenges in the nfl.
how many challenges does a coach get in the nfl?
two opportunities per game
Na
Na
quasipetalichthys









































quasipetalichthys haikouensis is a species of extinct petalichthid placoderm from the middle devonian of china.









































section::::fossils.









































it is known primarily from two poorly preserved skulls from the givetian-aged haikou formation of haikou, kunming, where they were found in association with remains of the antiarch placoderms "bothriolepis sinensis", and "hunanolepis". the larger skull may be around in length.









































section::::phylogeny.
quasipetalichthys