Coccolithophyceae - Braarudosphaerales - Polycyclolithaceae
Parent taxon: Polycyclolithaceae according to P. R. Bown and J. R. Young 1997
Sister taxa: Assipetra, Eprolithus, Farhania, Hayesites, Hexalithus, Lithastrinus, Micula, Polycostella, Radiolithus, Rucinolithus, Tegulalithus, Uniplanarius
Subtaxa: Quadrum bengalensis Quadrum eneabrachium Quadrum eptabrachium Quadrum gartneri Quadrum giganteum Quadrum intermedium Quadrum octobrachium Quadrum svabenickae
Type: Quadrum gartneri
Ecology: passively mobile planktonic "photoautotroph"
Distribution:
• Eocene of United States (1: California collection)
• Cretaceous of Argentina (6), Austria (1), France (1), Tanzania (2), United States (1: Alabama)
Total: 12 collections including 16 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.