†Cylindralithus duplex Perch-Nielsen 1973 (haptophyte alga)
Prymnesiophyceae - Watznaueriales - Watznaueriaceae
PaleoDB taxon number: 88217
Belongs to Cylindralithus according to P. R. Bown 1998
Sister taxa: Cylindralithus asymmetricus, Cylindralithus coronatus, Cylindralithus nieliae, Cylindralithus nudus, Cylindralithus sculptus, Cylindralithus serratus
Ecology: passively mobile planktonic "photoautotroph"