Megalodontida
Megalodontida is an extinct order of bivalve molluscs whose members lived from the Katian age of the Late Ordovician to the Maastrichtian age of the Late Cretaceous.
It contains two superfamilies, Mecynodontoidea and Megalodontoidea.
Megalodontida is an extinct order of bivalve molluscs whose members lived from the Katian age of the Late Ordovician to the Maastrichtian age of the Late Cretaceous.
It contains two superfamilies, Mecynodontoidea and Megalodontoidea.