Platanaster

Platanaster ('plate star') is an extinct genus of sea stars.

Taxonomy

†Palasteriscidae

• †Urasterellinae
• †Cnemidactis
• †C. girvanensis
• †Urasterella
• †U. asperrimus
• †Palasteriscinae
• †Lanthanaster
• †L. cruciformis
• †Platanaster
• †P. ordovicus
• †Baliactis
• †B. ordovicus

References