1. Ecosystem – A.G. Tansley, 1935
2. Biodiversity – Walter Rosen, 1985
3. Taxonomy – AP de Candolle
4. Father of Taxonomy (classical) – Aristotle
5. Father of modem taxonomy, Founder of modem systematics – Carolus Linnaeus
6. Aristotle – Historia Animalium
7. Theophrastus – Father of Botany
8. Species – John Ray (1627 – 1708)
9. Five kingdom classification – R.H. Whittaker (1969)
10. Three domain classification – Carl Woese (1977)
11. Seven kingdom classification – Cavalier- Smith (1987)
12. Binomial nomenclature – Carolus Linnaeus
13. John Ray – Methodus Plantarum Nova and Historia Generalis Plantarum
14. Trinomial nomenclature – Huxley and Stricklandt
15. Charles Darwin – Origin of species
16. Ernst Haeckal – Cladogram
