#heterosteidae

Heterosteidae

Extinct family of fish

Heterosteidae is an extinct family of moderately large to giant, flattened, benthic arthrodire placoderms with distinctive, flattened, triangular skulls that are extremely broad posteriorly, but become very narrow anteriorly.

Sun 29th

Provided by Wikipedia

Learn More
0 searches
This keyword has never been searched before
This keyword has never been searched for with any other keyword.