Subject
Palynology.
3
palynology
2
Micropaleontology.
1
Pollen, Fossil.
1
Pollen.
1
Sedimentation and deposition.
1
botany
1
environmental impact assessment
1
geochemistry
1
geophysics
1
morphology
1
nomenclature
1
oil deposit
1
petroleum deposit
1
petroleum exploration
1
petroleum formation
1
petroleum geochemistry
1
petroleum geology
1
phylogeny ( phylogenesis )
1
plant classification
1
systematics
1
taxonomy
1