Photosynthetic - Paleontology - Lecture Slides, Slides of Geology

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Algae

Symbioses (algae, lichens, corals, some foraminifera,

radiolarians)

Vascular plants

Cyanobacteria in the Modern Ocean

Evolution and Radiation ofPhotosynthetic Organisms

Need to Know:

The role of symbiosis in the Evolution 0f

Photosynthetic Eukaryotes

Brief history of plant kingdom; basic characteristics ofalgae (acritarchs) ; primitive vascular plants (mosses,

ferns, lycopods), conifers and angiosperms. An

example of interrelationship between plant & animal

divergences

Who are the major groups of marineprimary producers today? Which groups dominated at differentperiods in the geologic past? How is plankton growth recorded in rocks– and oil? (subsequent lecture) What factors influence the completenessof the fossil record of marine plankton? How has long-term ecological successionof marine plankton affected the evolutionof other organisms and biogeochemicalcycles?

Image removed due tocopyright restrictions.

Two kinds cyanobacteria from the Bitter Springs Fm (850Ma), a chert from theAmadeus Basin central Australia. On the left is a colonial chroococcaleanform, and on the right is the filamentous

Palaeolyngbya

.

Morphologies in the group have remained much the same for billions of years,and they may leave chemical fossils behind as well, in the form of breakdownproducts of lipids.

CYANOBACTERIA

Images removed due to copyright restrictions.

Stromatolites & Cyanobacterial Mats Stromatolitic bioherm, 800Ma

Precambrian stromatolitesSiyeh Formation, Glacier Nat’l Par

k

Courtesy NPS

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Cyanobacteria,Mesoproterozoic and Modern

Anabaena Archaeoellipsoides

H

eterocysts/Akinetes

Courtesy EPA

Eukaryote Diversity & Chloroplast Endosymbiosis

Plankton Biogeography

Images removed due to copyright restrictions.

Building a Fossil Record

Biology Sediment

Sedimentary Rock

Old Sedimentary Rock

Oil

Respiration Diagenesis

Subduction, Metamorphosis

Thermal Alteration

Microfossils

Molecular Fossils