With Douglas Drenkow

Introduction

The Diversity of

The World of Life

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Outline of

The Tree of Life

A Computer Database

(c) 1992 D.D.

Note:  Numbers in parentheses are code numbers for

computerized cross-references (like modern-day hyperlinks)

Traditional Phylogeny & Taxonomy

Kingdom Plantae [plants] (41)

  Subkingdom Thallobionta [thallophytes] (42)

    Prokaryotes (43)

      Division Schizomycophyta [bacteria] (1)

      Division Cyanophyta [blue-green algae] (2)

    Eukaryotic Algae (43)

      Division Rhodophyta [red algae] (3)

      Division Chrysophyta [golden algae] (4)

      Division Pyrrophyta [dinoflagellates] (5)

      Division Bacillariophyta [diatoms] (6)

      Division Phaeophyta [brown algae] (7)

      Division Xanthophyta [golden-green algae] (8)

      Division Euglenophyta [Euglena, etc.] (9)

      Division Chlorophyta [green algae] (10)

    Division Mycota [fungi] (43)

      Subdivision Eumycotina [true fungi] (11)

      Subdivision Myxomycotina [slime molds] (12)

  Subkingdom Embryobionta (42)

    Division Bryophyta [liverworts, hornworts, & mosses] (13)

    Vascular Plants (47)

      Lower Vascular Plants (48)

        Division Psilophyta [Psilotum, etc.] (14)

        Division Lycophyta [club mosses] (15)

        Division Sphenophyta [horsetails] (16)

        Division Pterophyta [ferns] (17)

      Seed Plants (48)

        Gymnosperms (50)

          Division Pteridospermophyta [seed ferns (extinct)] (18)

          Division Cycadophyta [cycads] (19)

          Division Coniferophyta [conifers] (20)

          Division Ginkgophyta [Ginkgo] (21)

        Division Anthophyta [angiosperms] (22)

 

Kingdom Animalia [animals] (41)

  Subkingdom Protozoa [protozoans] (24)

  Subkingdom Parazoa (53)

    Phylum Porifera [sponges] (25)

  Subkingdom Eumetazoa (53)

    Radiata (54)

      Phylum Cnidaria, or Coelenterata [coelenterates] (26)

    Bilateria (54)

      Protostomes (55)

        Acoelomates (56)

          Phylum Platyhelminthes [flat worms] (27)

        Pseudocoelomates (56)

          Phylum Rotifera [rotifers] (28)

          Phylum Gastrotricha [gastrotrichs] (29)

          Phylum Nematoda [nematodes, or round worms] (30)

        Schizocoelous Coelomates (56)

          Phylum Mollusca [mollusks] (31)

          Phylum Annelida [segmented worms] (32)

          Phylum Arthropoda [arthropods] (33)

        Lopophorate Coelomates (56)

          Phylum Bryozoa [moss animals] (34)

      Deuterostomes, or Enterocoelous Coelomates (55)

        Phylum Echinodermata [echinoderms] (35)

        Phylum Hemichordata [acorn worms, etc.] (36)

        Phylum Chordata [chordates] (59)

          Subphylum Urochordata [sea squirts, or tunicates] (37)

          Subphylum Cephalochordata [lancelets] (38)

          Subphylum Vertebrata [vertebrates] (39)

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(c) 2004 D.D.  All Rights Reserved.

Photo of Cells:  H.D.A. Lindquist, US EPA