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EARLY PALEOZOIC LIFE. Advent of the Metazoans. Multicellular organisms begin to become common in fossil record of Neoproterozoic Fossils found on every continent Fossils are impressions of soft bodied organisms Metazoans are multicellular organisms the possess - PowerPoint PPT Presentation
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EARLY PALEOZOIC LIFEAdvent of the Metazoans
Multicellular organisms begin to become commonin fossil record of Neoproterozoic
Fossils found on every continent
Fossils are impressions of soft bodied organisms
Metazoans are multicellular organisms the possessmore than one kind of cell and cells are organized into organs and tissue.
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna – Rawnsley Quartzite – 630-570 myBPfirst found in Ediacara Hills of Australia
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
Cyclomedusa
Jellyfish?
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
Dickinsonia
Flatworms or annelids
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
Spriggina sp.
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
Charniodiscus
Sea pen or soft coral?
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
Kimberella sp.
Mollusc?
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
Parvancorina
Prototrilobite?
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
Parvincorina toTrilobite?
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Ediacaran Fauna
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Organisms with Skeletons - Proterozoic
Cloudina
Tube (CaCO3)-dwelling worm?
EARLY PALEOZOIC LIFEAdvent of the Metazoans
Other Proterozoic Advances
Metazoan embryos (~570 myBP)Neoproterozoic Doushantuo Formation, China
EARLY PALEOZOIC LIFEAnimals with Shells
Organisms with Skeletons – Paleozoic
Tommotian FaunaFound in SiberiaSmall shelly fossils
Shells are phosphaticPrimarily molluscs and
sponges
EARLY PALEOZOIC LIFE
Organisms with Skeletons – Paleozoic
Animals with Shells
EARLY PALEOZOIC LIFEAnimals with Shells
THE BURGESS SHALE Mt. Wapta, near Field, BC
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Part of the Cambrian Stephen FormationMt. Wapta, near Field, BCFirst studied by Charles D. Walcott beg. 1909
Secretary of Smithsonian InstitutionLater studied by Harry B. Whittington in 1960s
Geological Survey of Canada
Preserved as carbonized remainsMany soft parts preserved
Animals with Shells
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Walcott
Whittington
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Extraordinary assemblage of fossils
Four major groups of arthropodstrilobites, crustaceans, scorpions, insects
Sponges MolluscsOnycophorans CrinoidsThree phyla of wormsCoralsChordatesOrganisms that defy classification!
Animals with Shells
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Vauxia (sponge)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Olenoides (trilobite)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Sidneyia (arthropod)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Waptia (arthropod)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Opabinia (arthropod)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Haplophrentis (gastropod)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Wiwaxia (mollusc?)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals without Shells
Aysheaia (onycophoran or velvet worm)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals without Shells
Hallucigenia (?)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals Related to US!
Pikaia (Chordata)Notochord and V-shapedmuscles
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
Canadaspis (crustacean)
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals With Shells
Anomalocaris (crustacean)60 cm long
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals With Shells
Marrella (crustacean) most common Burgess Shale fossil
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
EARLY PALEOZOIC LIFE
THE BURGESS SHALE
Animals with Shells
EARLY PALEOZOIC LIFE
CHENGJIANG FAUNA
Animals With Shells
Lagerstätten [meaning "(fossil) deposit places" in German] are geological fossil deposits that are rich with varied, well-preserved fossils, representing a wide variety of life from a particular era.
These spectacular fossil deposits represent an amazing "snapshot" in time.
Ediacaran, Burgess and Chengjiang deposits are good examples.
EARLY PALEOZOIC LIFELagerstätten
