Outline of life forms
This article is about a thing that is living or alive. For The Future Sound of London album, see Lifeforms (album). For other uses, see Lifeform (disambiguation).
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A life form or lifeform is an entity or being that is living.[1][2]
Estimates on the number of Earth's current species range from 10 million to 14 million,[3] of which about 1.2 million have been documented and over 86 percent have not yet been described.[4] More recently, in May 2016, scientists reported that 1 trillion species are estimated to be on Earth currently with only one-thousandth of one percent described.[5]
More than 99% of all species, amounting to over five billion species,[6] that ever lived on Earth are estimated to be extinct.[7][8]
Archaea
- Archaea
- Crenarchaeota
- Desulfurococcales - an order of the Thermoprotei
- Euryarchaeota
- halobacteriales - in taxonomy, the Halobacteriales are an order of the Halobacteria, found in water saturated or nearly saturated with salt.
- Halophiles
- Korarchaeota
- Korarchaeum cryptofilum - These archaea have only been found in high temperature hydrothermal environments, particularly hot springs
- Lokiarchaeota
- Methanobacteriales - information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues.
- Methanococcales aka Methanocaldococcus jannaschii - a genus of coccoid methanogens of the family Methanococcacea
- Methanogens
- Methanosarcinales - In taxonomy, the Methanosarcinales are an order of the Methanomicrobia
- Methanopyrales - In taxonomy, the Methanopyrales are an order of the methanopyri.
- Nanoarchaeota
- Psychrophiles - (sigh-crow-files)
- sulfobales - grow in terrestrial volcanic hot springs with optimum growth occurring
- Thaumarchaeota - a phylum of the Archaea proposed in 2008 after the genome of Cenarchaeum symbiosum
- thermophilic - (A thermophile is an organism)
- thermoplasmales - An order of aerobic, thermophilic archaea, in the kingdom
Bacteria
- Bacteria
- Gram positive no outer membrane
- Actinobacteria (high-G+C)
- Firmicutes (low-G+C)
- Tenericutes (no wall)
- Gram negative outer membrane present
- Unknown / ungrouped
- Gram positive no outer membrane
Eukaryote
Organisms whose cells contain complex structures enclosed within membranes
- Eukaryote
- Unikonta
- Opisthokonta
- Metazoa (animals)
- Subkingdom Parazoa
- Subkingdom Eumetazoa
- Radiata (unranked)
- Bilateria (unranked)
- Orthonectida
- Rhombozoa
- Acoelomorpha
- Chaetognatha
- Superphylum Deuterostomia
- Protostomia (unranked)
- Superphylum Ecdysozoa
- Superphylum Platyzoa
- Superphylum Lophotrochozoa
- Mesomycetozoa
- Choanozoa
- Eumycota (fungi)
- Blastocladiomycota
- Dikarya (inc. Deuteromycota)
- Subphyla incertae sedis
- Metazoa (animals)
- Amoebozoa
- Conosa
- Mycetozoa (slime-molds)
- Archamoebae
- Lobosa
- Protamoebae
- Conosa
- Opisthokonta
- Bikonta
- Apusozoa
- Rhizaria
- Excavata
- Archaeplastida (plants, broadly defined)
- Glaucophyta – glaucophytes
- Rhodophyceae – red algae
- Chloroplastida
- Chlorophyta– green algae (part)
- Ulvophyceae
- Trebouxiophyceae
- Chlorophyceae
- Chlorodendrales – green algae (part)
- Prasinophytae – green algae (part)
- Mesostigma
- Charophyta sensu lato – green algae (part) and land plants
- Streptophytina – stoneworts and land plants
- Chromalveolata
- Unikonta
See also
References
- ↑ "life form". World English Dictionary. Dictionary.com. 2009.
- ↑ "life form". Online Oxford Dictionary of English. Oxford University Press. 2005.
- ↑ G. Miller; Scott Spoolman (2012). Environmental Science - Biodiversity Is a Crucial Part of the Earth's Natural Capital. Cengage Learning. p. 62. ISBN 1-133-70787-4. Retrieved 2014-12-27.
- ↑ Mora, C.; Tittensor, D.P.; Adl, S.; Simpson, A.G.; Worm, B. (23 August 2011). "How many species are there on Earth and in the ocean?". PLOS Biology. 9: e1001127. doi:10.1371/journal.pbio.1001127. PMC 3160336
. PMID 21886479. - ↑ Staff (2 May 2016). "Researchers find that Earth may be home to 1 trillion species". National Science Foundation. Retrieved 6 May 2016.
- ↑ Kunin, W.E.; Gaston, Kevin, eds. (31 December 1996). The Biology of Rarity: Causes and consequences of rare—common differences. ISBN 978-0412633805. Retrieved 26 May 2015.
- ↑ Stearns, Beverly Peterson; Stearns, S. C.; Stearns, Stephen C. (2000). Watching, from the Edge of Extinction. Yale University Press. p. 1921. ISBN 978-0-300-08469-6. Retrieved 2014-12-27.
- ↑ Novacek, Michael J. (8 November 2014). "Prehistory's Brilliant Future". New York Times. Retrieved 2014-12-25.
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