†Cylindralithus serratus Bramlette and Martini 1964 (haptophyte alga)
Prymnesiophyceae - Watznaueriales - Watznaueriaceae
PaleoDB taxon number: 88214
Belongs to Cylindralithus according to P. R. Bown 1998
Sister taxa: Cylindralithus asymmetricus, Cylindralithus coronatus, Cylindralithus duplex, Cylindralithus nieliae, Cylindralithus nudus, Cylindralithus sculptus
Ecology: passively mobile planktonic "photoautotroph"