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Aristotle (384–322 BC) was the first to attempt to classificate species into groups according to their behaviour and by their similarities and differences between their physiologies.

His classification system was decided by the physical characteristics, he divided into two groups, and then into five genera per group, and later into species within each genus.
Voultsiadou, E. (2017). Aristotle’s scientific contributions to the classification, nomenclature and distribution of marine organisms | VOULTSIADOU | Mediterranean Marine Science. Mediterranean Marine Science. Recuperado 24 de noviembre de 2021, de https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/13874

Eduardo Arana
Ricardo Castillo

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He wrote a classification of all known plants, De Historia Plantarum (c. 350 BC and c. 287 BC), which contained 480 different species.
His classification was based on growth form, some examples are Narcissus, Crocus, and Cornus.
He classified plants and ordered them by using characters, such as their habit, their utility for humans along with other factors for their grouping. After the books of Alexandria had been burned, his contribution became largely ignored. for more than 1,500 years, until his Enquiry to Plants was translated back into latin by Teodoro of Gaza in the 15th century from an Arab manuscript discovered in the Vatican library. -Mia Escarpulli Ochoa Reference:
In the Enquiry of the plants, 10 original books, from which nine of them survive. The plants are divided according to their uses, location, generation, and size. The first book talks about the part of the plants, the second about its reproduction, from the third to fifth about trees, types, location and applications. The sixth book deals with shrub and spiny plants, the seventh talks about herbs, and finally the last two books are written about edible seeds and useful products such as juices, gums, resins.
Reference: Manktelow, M. (n.d.). History of taxonomy.
Rapini, A. (2014). Introduction to Botanical Taxonomy. In Methods and Techniques in Ethnobiology and Ethnoecology (pp. 123-139). Humana Press, New York, NY.
Trinity College Dublin. (2011, February 24). Theophrastus (371 - 287 BC) - Origins of Botany - en - Botany : Trinity College Dublin, the University of Dublin, Ireland. © 2007 Trinity College Dublin.
Karol Custodio, Mia Escarpulli, Ian Zaldivar.

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They were a Nahuatl speaking civilization, they were people of indigenous people from the valley of mexico, they ruled all the aztec empire.

Their contribution to taxonomy were finding 5 new species of Tersilochinae:
-thersilochus fusculus, found in 1860
-gelanes contrerasi, found in 2019
-meggoleus, found in 1971
-phradis, found in 1869
-stethantyx, found in 1971

Khalaim, A. I., & Ruíz-Cancino, E. (2020). Contribution to the taxonomy of Mexican Tersilochinae (Hymenoptera, Ichneumonidae), with descriptions of five new species. ZooKeys, 974, 1–21. https://doi.org/10.3897/zookeys.974.54536

Valeria Ruiz, Daniella Marquez and Maria Dominguez

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Carl Linneaus did not consider the sexual system to be his main contribution toward the “reformation of botany”, he was the first to frame principales for defining natural genera and species of organisms, and creating a uniform system for naming them known as binomial nomenclature, this contribution came in the form of a booklet, Fundamenta Botanica (1736; “The Foundations of Botany”), that mframed the principles and rules to be followed in the classification and naming of plants.

-His early interest in plants made him known by the nickname of the Little Botanist at the age of eight.
-He was the first to place the human being in the primate family.
-he has a book called Species plantarum

Britannica Taxonomy. (s. f.). Britannica. Retrieved 24 de noviembre of 2021, from https://www.britannica.com/biography/Carolus-m+Linnaeus#:%7E:text=Swedish%20naturalist%20and%20explorer%20Carolus,them%2C%20known%20as%20binomial%20nomenclature.+https://www.fondecyt.gob.pe/fondecyt-informa/carlos-linneo-botanico-sueco-considerado-el-creador-de-la-clasificacion-de-los-seres-vivos-o-taxonomia
https://www.fondecyt.gob.pe/fondecyt-informa/carlos-linneo-botanico-sueco-considerado-el-creador-de-la-clasificacion-de-los-seres-vivos-o-taxonomia

michelle, jatziri, ana gabriela

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Phylogenetic Tree of life from "Generelle Morphologie der Organismen."

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In 1866, Ernst Haeckel, while elucidating the patterns of classification and phylogeny, Hegel was the first to publish a phylogenetic tree showing the evolution of humans from lower organisms. Heikal's famous comparative embryology drawings are evidence of the laws of biological genetics.

Barnes, E. (2014, May 3). The Embryo Project Encyclopedia. Ernst Haeckel's Biogenetic Law (1866) | The Embryo Project Encyclopedia. Retrieved November 23, 2021, from https://embryo.asu.edu/pages/ernst-haeckels-biogenetic-law-1866.

Frankie Villanueva and Vanessa Becerril.

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Jan 1, 1956 year - Herbert Copeland
He proposed a new kingdom: the Monera, to bring together the recently minted prokaryotes. These beings do not have a nucleus in their cells unlike the other realms.

+ In the monera kingdom it included bacteria and cyanophycea (cyanobacteria).

+ In the protist kingdom he left unicellular eukaryotes and multicellular eukaryotes with simple organization or with minimally differentiated tissues, such as algae and fungi.

1 ene 1956 año - Herbert Copeland (Cinta de tiempo). (s. f.). Time Graphics. Recuperado 24 de noviembre de 2021, de https://time.graphics/es/event/1789174

Emilio Castillo and Jacobo Sigler

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Regina Martinez Felix

Diego Torrez Gonzales, Dante Emiliano Gómez Morales

In 1977 Carl Woese was a microbiologist who revolutionized the field of phylogenic taxonomy. The tree of life originally included two domains, prokaryotic and eukaryotic, until Woese disproved this hypothesis through the use of ribosomal RNA (rRNA). He sequenced and compared the 16S rRNA (a component of the small subunit of a prokaryotic ribosome) of bacteria and elucidated that Archaea had evolved separately from the universal ancestor of all life, simultaneously setting the standard for determining evolutionary relatedness among organisms. These studies allowed him to propose the idea that RNA was the precursor to life on Earth because of its catalytic tendencies, stability, and ability to store genetic information.

Craine, A. G. (n.d.). Carl Woese. Britannica. https://www.britannica.com/biography/Carl-Woese

National Academy of Science. (n.d.). Carl R. Woese. National Academy of Science. http://www.nasonline.org/member-directory/deceased-members/8899.html

Carl Woese was an American microbiologist who discovered the group of single-cell prokaryotic organisms known as archaea, which constitute a third domain of life.

Carl Woese | American microbiologist. (s. f.). Encyclopedia Britannica. Retrieved 23, November of 2021, from https://www.britannica.com/biography/Carl-Woese

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Robert H. Whittaker was the first to propose the five kingdom taxonomic classification of the world's biota into the Animalia, Plantae, Fungi, Protista, and Monera in 1969

Wikipedia contributors. (2021, 12 noviembre). Robert Whittaker (ecologist). Wikipedia. Recuperado 23 de noviembre de 2021, de https://en.wikipedia.org/wiki/Robert_Whittaker_(ecologist)#:%7E:text=Robert%20Harding%20Whittaker%20(December%2027,Protista%2C%20and%20Monera%20in%201969.

Ana Díaz, Josema Gonzalez, Daniela Tirado

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He was one of the 20th century's leading evolutionary biologists. He was also a renowned taxonomist, tropical explorer, ornithologist and other things. His work contributed to the conceptual revolution that led to the modern evolutionary synthesis of Mendelian genetics, systematics, and Darwinian evolution, and to the development of the biological species concept. This theory is supposed to be in 1942

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Thomas proposed several new taxonomic branches of the phylogenetic tree of life, which is a model of evolutionary relationships based on physical or genetic characteristics, and clarified the position of its root. (reduce to 6 kingdom system classification)

Thomas Cavalier-Smith. (n.d.). Royal Society. Retrieved November 24, 2021, from https://royalsociety.org/people/thomas-cavalier-smith-11202/

Andrea Olivares, Silvano Yañez and Valentina Valencia.