Quadrum Prins and Perch-Nielsen 1977 (haptophyte alga)

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

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Type: Quadrum gartneri

Ecology: passively mobile planktonic "photoautotroph"

Distribution:

• Eocene of United States (1: California collection)

• Cretaceous of Austria (1), France (1), Tanzania (2), United States (1: Alabama)

Total: 6 collections including 8 occurrences

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Specimen images are retrieved through the ePANDDA API.


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