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NARROW
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Southern Africa
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Kaapvaal Craton (1)
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Namibia (1)
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-
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Antarctica
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Ross Ice Shelf
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Asia
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Far East
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Mongolia (1)
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Yakutia Russian Federation
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Olenek River (1)
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Atlantic Ocean
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North Atlantic
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Commonwealth of Independent States
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Lena Basin (1)
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Death Valley (1)
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Europe
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Grand Canyon (1)
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North America
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elements, isotopes
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stable isotopes
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O-18/O-16 (1)
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Os-188/Os-187 (1)
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S-34/S-32 (1)
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Sr-87/Sr-86 (1)
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metals
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Invertebrata
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Vermes
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Plantae
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Chrysophyta (1)
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problematic fossils
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prokaryotes (14)
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geochronology methods
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U/Pb (3)
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geologic age
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Cenozoic
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Tertiary
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Mesozoic
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Cretaceous (3)
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Paleozoic
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Cambrian
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lower Paleozoic (2)
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Oronto Group (1)
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igneous rocks
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orthosilicates
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sheet silicates
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illite (1)
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sulfides
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Primary terms
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absolute age (7)
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Africa
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Southern Africa
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Kaapvaal Craton (1)
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Namibia (1)
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-
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Antarctica
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Arctic region
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Asia
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Buryat Russian Federation
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Far East
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Mongolia (1)
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Indian Peninsula
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Krasnoyarsk Russian Federation
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atmosphere (1)
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carbon
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Cenozoic
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Quaternary
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Holocene (1)
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Tertiary
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Neogene
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Chordata
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Vertebrata
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Pisces
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Invertebrata
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Porifera
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Protista
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Foraminifera (2)
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Radiolaria (1)
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Silicoflagellata (1)
-
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Vermes
-
Nematomorpha (1)
-
-
-
isotopes
-
radioactive isotopes
-
Re-187/Os-188 (1)
-
-
stable isotopes
-
C-13/C-12 (8)
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Fe-56/Fe-54 (1)
-
O-18/O-16 (1)
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Os-188/Os-187 (1)
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Re-187/Os-188 (1)
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S-34/S-32 (1)
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Sr-87/Sr-86 (1)
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Mesozoic
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Cretaceous (3)
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-
metals
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Sr-87/Sr-86 (1)
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-
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-
-
-
rhenium
-
Re-187/Os-188 (1)
-
-
zinc (1)
-
-
metamorphic rocks
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metasedimentary rocks
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metaconglomerate (1)
-
-
-
metamorphism (1)
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metasomatism (1)
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nitrogen (2)
-
North America
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Keweenawan Rift (1)
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Rocky Mountains
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Canadian Rocky Mountains (1)
-
-
-
ocean floors (1)
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Oceania
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Micronesia
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oxygen
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paleogeography (4)
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paleontology (2)
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Paleozoic
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Cambrian
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Tommotian (2)
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-
Middle Cambrian
-
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-
-
lower Paleozoic (2)
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Ordovician (1)
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Silurian (1)
-
-
palynomorphs
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miospores
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pollen (1)
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-
-
Phanerozoic (4)
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phosphorus (3)
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Plantae
-
algae
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Chlorophyta
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Chrysophyta (1)
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diatoms (3)
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nannofossils (1)
-
Phaeophyta (1)
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Rhodophyta (3)
-
-
-
Precambrian
-
Archean
-
Neoarchean (1)
-
-
Chuar Group (3)
-
Nonesuch Shale (1)
-
Pahrump Series (1)
-
upper Precambrian
-
Proterozoic
-
Bitter Springs Formation (2)
-
Great Oxidation Event (1)
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Huronian (1)
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Lewisian (1)
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Mesoproterozoic
-
Belt Supergroup (1)
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Ectasian (1)
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Roper Group (1)
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Stenian (1)
-
Wumishan Formation (1)
-
-
Neoproterozoic
-
Cryogenian (3)
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Dengying Formation (1)
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Doushantuo Formation (6)
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Ediacaran (11)
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Marinoan (5)
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Nantuo Formation (2)
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Otavi Group (1)
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Riphean
-
upper Riphean (1)
-
-
Sturtian (2)
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Tonian (6)
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Torridonian (1)
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Vendian (3)
-
-
Oronto Group (1)
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Paleoproterozoic (2)
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Sinian
-
Dengying Formation (1)
-
Doushantuo Formation (6)
-
Nantuo Formation (2)
-
Wumishan Formation (1)
-
-
-
-
-
problematic fossils
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problematic microfossils (11)
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sea water (2)
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sedimentary rocks
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sedimentary structures
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selenium (1)
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soils (1)
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stratigraphy (3)
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United States
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Arizona (3)
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California
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eukaryotes
Dynamic redox conditions in Mesoproterozoic shallow seawater: Constraints from carbonate fabrics and geochemistry
Exceptional preservation of a marine tapeworm tentacle in Cretaceous amber
Changes in the Microbial Community Associated with the Large Benthic Foraminifera Cycloclypeus Carpenteri , Along a Depth Gradient
U–Pb zircon–rutile dating of the Llangynog Inlier, Wales: constraints on an Ediacaran shallow-marine fossil assemblage from East Avalonia
Strongly peraluminous granites provide independent evidence for an increase in biomass burial across the Precambrian–Phanerozoic boundary
Reconstructing the paleoenvironment of an oxygenated Mesoproterozoic shoreline and its record of life
Magnetic Guidance in Multicellular Prokaryotes and Eukaryotes
Systematic paleontology of macroalgal fossils from the Tonian Mackenzie Mountains Supergroup
Secular variation in seawater redox state during the Marinoan Snowball Earth event and implications for eukaryotic evolution
Halogen ratios in crustal fluids through time—Proxies for the emergence of aerobic life?
830-million-year-old microorganisms in primary fluid inclusions in halite
Contributions of Genomics to Lipid Biomarker Research: From Paleoclimatology to Evolution
New holozoans with cellular resolution from the early Ediacaran Weng'an Biota, SW China
Implications for Ediacaran biological evolution from the ca. 602 Ma Lantian biota in China
Shale-hosted biota from the Dismal Lakes Group in Arctic Canada supports an early Mesoproterozoic diversification of eukaryotes
Abstract Most of the Precambrian (>538 Ma) fossil record, which includes the time before the onset of macroscopic multicellular life, consists of minute organically preserved remains of soft-bodied micro-organisms, i.e. non-pollen palynomorphs (NPP). These microfossils include single-celled prokaryotic or eukaryotic organisms, filamentous sheets and bacterial cellular aggregates, and occur in marine and lacustrine sediments through most of the Earth's history. Ancient NPP have informed our understanding of one of the biggest evolutionary steps in the history of life: the origin of the eukaryotic cell and the subsequent diversification of eukaryotic life before the evolution of macroscopic forms. The oldest widely accepted eukaryotic microfossils are large cells with opening structures and ornamentation from upper Paleoproterozoic units in China and India. NPP diversify through Meso- and Neoproterozoic Eras, notably recording the oldest multicellular life around 1 billion years ago. In the latest Neoproterozoic, during the advent of animal life, the NPP record allows us to study the cryptic evolution of animals while they were exclusively small and poorly or non-mineralized before the appearance of organisms with hard parts. We review the current understanding of the early eukaryotic evolution and major advances in Precambrian palaeontology through the lens of the NPP record in deep time.