History of Classification

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History of Classification
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• Taxonomy Branch of biology that groups all life
  according to their characteristics and history
• All life on earth is placed into 1 of 6 kingdoms
• Eubacteria
• Archaea
• Protista
• Fungi
• Plantae
• Animalia

Classification History
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• Developed classification system based on physical
  features
• Many rules still used today
• Binomial Nomenclature System of giving every
  organism 2 names
• 1st word Genus (broad)
• 2nd word Species (specific)
• Example House cat
• Genus Felis (cougars, lions, tigers, cheetahs,
  etc)
• Species catus

Carolus Linnaeus
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Binomial Format

• When Writing
• Genus capitalized
• species lowercase
• Underlined entirely
• Ex Homo sapiens
• When Typing
• Same, except use italics
• Ex Homo sapiens

Bos taurus
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• 7 individual levels (taxa) used to classify
  organisms
• Kingdom (broadest)
• Phylum
• Class
• Order
• Family
• Genus
• Species (specific)
• Allows relationships to be clearly seen

Taxa
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Cheetah Classification
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Red Wolf Classification
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Human Classification
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Corn Classification
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The more levels in common...the more related the
species.
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What??? Who Cares!?!?!?!

• You recognize that the fungus is very similar to
  the infectious fungus known as Malassezia furfur.
• K Fungi
• P Basidiomycota
• C Heterobasidiomycetes
• O Tremellales
• F Filobasidiaceae
• G Malassezia
• S furfur
• How can classification help this patient?
• Perhaps the Malassezia furfur treatment can be
  applied to our unknown disease.

• A patient walks in with an unknown fungal skin
  disease. You are able to partially classify the
  new fungus.
• K Fungi
• P Basidiomycota
• C Heterobasidiomycetes
• O Tremellales
• F Filobasidiaceae
• G ?????
• S ?????