or clade. Therefore, some protists may be more closely related to animals, plants, or fungi than they are to other protists. However, like algae, invertebrates...

A protist (/ˈproʊtɪst/ PROH-tist) or protoctist is any eukaryotic organism that is not an animal, land plant, or fungus. Protists do not form a natural...

Gunflint microfossils Macrofossil Protists in the fossil record Protist shell Scale microfossils Small carbonaceous fossil Slater, Ben J.; Harvey, Thomas...

climate and human activity. Paleovirology Protists in the fossil record List of prehistoric foraminiferans The Micropalaeontological Society Drewes, Charlie...

living fossil is an extant taxon that phenotypically resembles related species known only from the fossil record. To be considered a living fossil, the fossil...

A protist (/ˈproʊtɪst/) is any eukaryotic organism (one with cells containing a nucleus) that is not an animal, plant, or fungus. The protists do not form...

Coccolithophore shells Many protists have protective shells or tests, usually made from silica (glass) or calcium carbonate (chalk). Protists are a diverse group...

Legouta, Anton (2003-03-31). "Ediacaran biota: The dawn of animal life in the shadow of giant protists". Paleontological Research. 7 (1): 43–54. doi:10...

Paleobotany studies fossil plants, algae, and fungi. Palynology, the study of pollen and spores produced by land plants and protists, straddles paleontology...

typically macroscopic. Most protists are single-celled and microscopic. But there are exceptions. Some single-celled marine protists are macroscopic. Some marine...

as the Cambrian explosion. Most of the currently existing body plans of animals first appeared in the fossil record of the Cambrian rather than the Ediacaran...

protists, but recent studies in marine environments found mixotrophic protests contribute a significant part of the protist biomass. Since protists are...

correspond to the articulated ones. This type of symmetry is not typical in animals; instead, it has been observed in other vendobionts, protists, multicellular...

photosynthetic unicellular and multicellular protists that are related to land plants. The thallus of the unicellular mermaid's wineglass, Acetabularia...

are single-celled organisms, members of a phylum or class of Rhizarian protists characterized by streaming granular ectoplasm for catching food and other...

The silicoflagellates (order Dictyochales) are a small group of unicellular photosynthetic protists, or algae, belonging to the supergroup of eukaryotes...

unicellular predatory protists encased in elaborate globular shells usually made of silica and pierced with holes. Their name comes from the Latin for "radius"...

aesthetically interesting protists both alive and in the fossil record. They occupy an important role ecologically and have done so since the Precambrian. There...

Journal of Foraminiferal Research, Cushman Foundation Loeblich & Tappin, 1964. Treatise on Invertebrate Paleontology, Part C Protists in the fossil record...

Paleodictyon nodosum may actually be a large protist. There are other known examples of protists reaching the sizes that Paleodictyon reaches, and they are...

are typically unicellular. Unicellular eukaryotes are sometimes called protists. Eukaryotes can reproduce both asexually through mitosis and sexually through...

overview of various invertebrate taxa found in the fossil record, ranging from protists to arthropods. The taxonomy discussed emphasizes invertebrates...

Roy E.; Wagner, Peter J. (2006). "Round up the Usual Suspects: Common Genera in the Fossil Record and the Nature of Wastebasket Taxa". Paleobiology. 32...

organisms are the result of many identical individuals joining together to form a colony. However, it can often be hard to separate colonial protists from true...

to archaea, bacteria, protists and microscopic pollen/spores. See also microfossils and palynology. Paleovirology examines the evolutionary history of...

Marine protists Marine protists are defined by their habitat as protists that live in marine environments, that is, in the saltwater of seas or oceans...

discipline is the scientific study of prehistoric invertebrates by analyzing invertebrate fossils in the geologic record. By invertebrates are meant the non-vertebrate...

are also common throughout the Cambrian fossil record. Taphonomic studies indicate that embryos are preserved for longest in reducing, anoxic conditions...

Thomas Cavalier-Smith in 1991 to refer to a group of basal protists that later proved not to form a clade. This group had the rank of phylum and contained...

of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species...