Posterior circle plate
From dinoflaj2
In Pluriarvalium, Sarjeant (1962b) recognized a ring of plates surrounding the antapical plate and posterior to the postcingular series. He named these the posterior circle plates.
In Pluriarvalium, Sarjeant (1962b) recognized a ring of plates surrounding the antapical plate and posterior to the postcingular series. He named these the posterior circle plates.
