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Biology Summaries
Species and Class

Biology Summary -
Taxonomy

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by Vaughn Aubuchon

Here is a brief summary classification table of all currently living things -
about one million animal species, and about one-half million plant species.


Biology Facts -
The vast majority of all living animal species are insects.
There are far more beetle species than you can shake a stick at - hundreds of thousands.

Greater than 99% of all species that have ever lived have been extinct for millions of years.

To study biological classification further, buy a biology textbook.

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300

140

Biology -
Summary of Living Species

Classification System (taxonomy) :

1
2
3
4
5
6
7
8

Kingdom (3)

Phylum (21)

Class

Order

Family

Genus

Species

Kind (race)

Animal

vertebrate

mammal

primate

hominid

homo

sapiens

caucasian

Middle

-

-

-

-

-

-

-

Plant

21 phylums

~1K classes

~3K orders

~10K families

~100K genera

~1.0M species

~10M kinds


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I. The ANIMAL Kingdom

  (Phyla listed by
descending size)

 2. Phylum

  (Classes listed by
descending size)

 3. Class

7. Est.
Living
Species

 4. Order

 .
Animalia

Arthropoda

(920,000 species)

(external skeleton)

Insecta

820,000

27 orders -

350,000

Coleoptera (beetles)

165,000

Lepidoptera (moths, butterflies)

120,000

Diptera (flies and mosquitos)

103,000

Hymenoptera (wasps, ants, bees)

(spiders, mites, ticks)

Arachnida

60,000

10 orders

(crab, lobster, shrimp)

Crustacea

26,000

Decapoda, Copepoda, Isopoda

(millipedes)

Diplopoda

10,000

16 orders

6,000

Hemiptera (true BUGS)

(centipedes)

Chilopoda

3,000

5 orders

-

Mollusca

(50,000 species)

(abalone, slug, snail)

Gastropoda

35,000

__ orders

(octopus, squid)

Cephalopoda

700

2 orders (subclass=Coleoidea)

(clam,muscle,oyster,scallop)

Pelecypoda (bivalves)

__ orders

(chiton)

Amphineura

700

Polyplacophora- 600, Aplacophora- 100

 -

Chordata (Vertebrata)

(42,000 species)

(cartilaginous fish)

Chondrichthyes

12,000

__ orders

(birds)

Aves

9,000

9 orders

(snakes, lizards, turtles)

Reptilia

6,000

Chelonia, Crocodilia, Squamata

(mammals)

Mammalia

4,500

12 orders (man, apes, monkeys)

(frogs, salamanders)

Amphibia

2,500

3 orders (Caudata, Anure, Apoda)

(bony fish, eels)

Osteichthyes

3,000

__ orders

 -

Platyhelminthes (flatworms)

(18,000 species)

(flukes)

Trematoda

9,000

Parasites (Monogenea, Digenia)

(tapeworm)

Cestoda

5,000

Parasites - up to 50 feet long

(planarians)

Turbellaria

4,500

12 orders

 -

Nematoda (roundworms)

(10,000 species)

(also called Aschelminthes)

Nematoda

5,000

Gastrotricha

3,000

(wheelheaded worms)

Rotifera

2,000

 -

Annelida

(10,000 species)

(bristle worms)

Polychaeta

8,000

(sand worms)

(earthworms)

Oligochaeta

2,200

(leeches)

Hirudinea

500

 -

Cnidaria (jellyfish, coral)

(Coelenterata)

5,300

Hydrozoa, Scyphozoa, Anthozoa

 -

Porofera (sponges)

4,800

Calcarea, Hexactinellida, Demospongiae

 -

Ectoprocta (bryozoans)

3,500

(moss-animal)

 -

Nemertinia (ribbonworms)

800

(marine worms)

 -

Acantho-cephala

500

(spineheaded worms)

926,500

Est. total living ANIMAL species




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II. The MIDDLE Kingdom

  (Phyla listed by
descending size)

 2. Phylum

  (Classes listed by
descending size)

 3. Class

7. Est.
Living
Species

 4. Order

.
Protista

Protozoa (single-cell)

(12,000 species)

(flagellates)

Mastigophora (algae)

3,000

phytoflagellates, dinoflagellates

(ameboid forms)

Sarcodina

3,000

radiolarians, foramini-ferans

(spore formers)

Sporozoa

3,000

(parasitic protozoans)

(cilates)

Ciliophora

3,000

(hairpropulsion) (Paramecium)

 -

Chrysophyta (diatoms)

(10,000 species)

10,000

 -

.
Monera

Schizophyta

(20,000 species)

(bacteria)

(rod-shaped)

bacillis

5,000

(schizomycetes ?)

(round)

coccus, streptoccus

5,000

(spiral)

spirilium

5,000

aerobic vs. anaerobic,

enzyme and amino acid production

(blue-green algae)

Cyano-phyceae

5,000

(cyanobacteria)

-

.
Virii

(na) 6 classes

(2,000 species)

2,000

1 dsDNA, 2 ssDNA, 3 dsRNA, 4 +sense

5 -sense RNA, 6 RNA rev., 7 DNA rev.

44,000

Est. total living "mid" species

 -

 61

166

117

61

240




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III. The PLANT Kingdom

  (Phyla listed by
descending size)

 2. Phylum

  (Classes listed by
descending size)

 3. Class

7. Est.
Living
Species

 4. Order

.
Thallobionta (thallophytes)

Magnoliophyta

(240,000 species)

(Anthophyta)

(flowers)

Magnoliopsida

200,000

(dicotyle - 2 seed leaves)

Families: aster, bluebell, buttercup,
gentian, grape, heather, maple,
mustard, pea, rose, willow

(grasses)

Liliopsida

40,000

(monocotyle - 1 seed leaf)

Families: amaryllis, arum, banana, corn,
crocus, grass, lily, orchid, palm, sedge

 -

Eumycophyta (fungi)

(74,000 species)

(true fungi)

(bread molds)

Phycomycetes

20,000

(yeasts)

Ascomycetes

20,000

(mushrooms)

Basidiomycetes

20,000

Deuteromycetes

20,000

 -

Polypodiophyta (ferns)

(10,000 species)

10,000

(Polypodiopsida)

 -

Chlorophyta (green algae)

(10,000 species)

10000

 -

Pinophyta (conifers)

( 700 species)

700

(Gymnosperms) (4 classes)

 -

Myxomycophyta

( 500 species)

500

(slime mold)

 

.
Embryobionta (gametophytes)

Bryophyta (fungi)

(24,000 species)

(mosses)

Bryopsida

18,000

(liverworts)

Marchantiopsida

3,000

(hornworts)

Anthocerotopsida

3,000

365,000

Est. total living PLANT species

-

61

166

117

61

240 - 700



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Wait. HOW many species are extinct?
For HOW long?
100 times the # of living species listed on this page, have been gone for millions of years.
Put that in your pipe.


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This Vaughns Biology Taxonomy Summary
was last updated on 2017-10-24.