Fossil code:

A=Arthropoda (crustaceans)

B=Bolfoforma

BR=Bryozoa

C=Conodonta

CO=Corals

E=Echinodermata

F=Foraminifera

I=Insects

IC=Ichnofossils

M=Mollusca (Ammonites, bivalves, gastropods, brachiopods)

MF=Microfossils in general

N=Calcareous nannofossils

O=Otholiths

P=Palynomorphs (spores, pollen, dinoflagellates)

PL=Plantae (macroplants)

R=Radiolaria