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The Diversity of Eukaryotes.

David J Patterson

    The American Naturalist
    |October 21, 1999
    PubMed
    Summary

    Evolutionary protistology is a new field lacking a unified classification. This study catalogs major eukaryotic lineages using cell organization, providing a foundation for a stable taxonomic system.

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    Beyond the "Code": A Guide to the Description and Documentation of Biodiversity in Ciliated Protists (Alveolata, Ciliophora).

    The Journal of eukaryotic microbiology·2017

    Area of Science:

    • Evolutionary biology
    • Protistology
    • Cell biology

    Background:

    • The classification of protists remains unresolved despite advances in evolutionary protistology.
    • A stable taxonomic framework for eukaryotes requires cataloging major monophyletic lineages.
    • Understanding protist interrelationships is crucial for evolutionary studies.

    Purpose of the Study:

    • To establish a comprehensive catalog of major monophyletic lineages of protists and eukaryotes.
    • To provide a foundation for a stable taxonomic superstructure for eukaryotes.
    • To summarize the composition, ultrastructural identity, and subgroups of these major lineages.

    Main Methods:

    • Utilizing common patterns of cell organization (ultrastructural identity) to hypothesize major lineages.
    • Identifying 71 major building blocks (lineages) without identifiable sister taxa.
    • Listing over 200 additional lineages with unclear identities.

    Main Results:

    • A catalog of 71 major building blocks and over 200 other lineages of protists and eukaryotes is presented.
    • The composition, ultrastructural identities, and subgroups of these major building blocks are summarized.
    • This catalog represents key elements of the comprehensive evolutionary tree of protists and eukaryotes.

    Conclusions:

    • Ultrastructural identity provides a robust method for hypothesizing major eukaryotic lineages.
    • The cataloged lineages form the basis for a stable taxonomic superstructure for protists and eukaryotes.
    • Discussion on nomenclature, ranking, and definitions, including the concept of 'extended in-group', aids in phylogenetic placement.
    Keywords:
    eukaryotesevolutionary protistologyextended in‐groupprotist diversityprotozoa

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