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→Depositional environments and facies analysis
The major groups of marine fossils are [[Calcareous_microfossils#Calcareous_nannofossils|nannoplankton]] (sometimes called [[coccoliths]]), [[foraminifera]], [[Siliceous_microfossils#Radiolarians|radiolarians]], [[Siliceous_microfossils#Diatoms|diatoms]], [[Phosphatic_microfossils#Conodonts|conodonts]], [[Calcareous_microfossils#Ostracods|ostracods]], [[Palynomorphs_(organic-walled_microfossils)|palynomorphs]] (such as organic-walled [[Palynomorphs_(organic-walled_microfossils)#Dinoflagellates|dinoflagellates]]), [[Palynomorphs_(organic-walled_microfossils)#Spores_and_pollen|spores and pollen]], and various types of megafossils. Nonmarine facies may yield spores and pollen, and [http://www.merriam-webster.com/dictionary/lacustrinelacustrine] facies may also contain ostracods and [[diatoms]]. These and other fossils are described in the ''Encyclopedia of Paleontology''.<ref name=pt05r54>Fairbridge, R. W., Jablonski, D., eds., 1979, The Encyclopedia of Paleontology: Stroudsburg, PA, Dowden, Hutchinson and Ross, Inc., 886 p.</ref>
The major groups of marine fossils are [[Calcareous_microfossils#Calcareous_nannofossils|nannoplankton]] (sometimes called [[coccoliths]]), [[foraminifera]], [[Siliceous_microfossils#Radiolarians|radiolarians]], [[Siliceous_microfossils#Diatoms|diatoms]], [[Phosphatic_microfossils#Conodonts|conodonts]], [[Calcareous_microfossils#Ostracods|ostracods]], [[Palynomorphs_(organic-walled_microfossils)|palynomorphs]] (such as organic-walled [[Palynomorphs_(organic-walled_microfossils)#Dinoflagellates|dinoflagellates]]), [[Palynomorphs_(organic-walled_microfossils)#Spores_and_pollen|spores and pollen]], and various types of megafossils. Nonmarine facies may yield spores and pollen, and [http://www.merriam-webster.com/dictionary/lacustrinelacustrine] facies may also contain ostracods and [[diatoms]]. These and other fossils are described in the ''Encyclopedia of Paleontology''.<ref name=pt05r54>Fairbridge, R. W., Jablonski, D., eds., 1979, The Encyclopedia of Paleontology: Stroudsburg, PA, Dowden, Hutchinson and Ross, Inc., 886 p.</ref>
The distribution of fossils in a particular basin depends on the age of the strata, [[Biogeography|biogeographic setting]], [[bathymetry]], [[depositional environment]], [http://www.thefreedictionary.com/lithology lithology], and [[Diagenesis|diagenetic events]]. Knowledge of these factors influences the decisions of whether to search for fossils in the drill cuttings or core and what fossil group to use.
The distribution of fossils in a particular basin depends on the age of the strata, [[Biogeography|biogeographic setting]], [[Paleobathymetry|bathymetry]], [[Depositional environments|depositional environment]], [http://www.thefreedictionary.com/lithology lithology], and [[Diagenesis|diagenetic events]]. Knowledge of these factors influences the decisions of whether to search for fossils in the drill cuttings or core and what fossil group to use.
===Geological age===
===Geological age===