Information about Jacques Gauthier
Jacques Gauthier is a vertebrate paleontologist and systematist, and one of the founders of the use of cladistics in paleontology.
He received a BS in Zoology at San Diego State University in 1973, a Masters of Science at the same institute in 1980, and a PhD in Paleontology from the University of California, Berkeley, in 1984. Currently he is Professor of Geology and Geophysics and Curator of Vertebrate Paleontology and Vertebrate Zoology at Yale University. His graduate thesis constituted the first major cladistic analysis of Diapsida, as well as arguing for the monophyly of the dinosaurs.
He followed this with an important paper (1986) on the origin of birds from theropods. This was the first detailed cladistic analysis of the theropod dinosaurs, and initiated a revolution in dinosaur phylogenetics, in which cladistics replaced the Linnaean system in the classification and phylogenetic understanding of the dinosaurs. Gauthier's 1984 and 1986 work still serve as basic references in modern cladistic analysis of the Diapsida and the Dinosauria.
More recently, Gauthier's has been applying cladistic methodology to the phylogeny of the Amniota, and argues for defining the tetrapods taxonomically as a crown clade only. Together with Kevin de Queiroz he argues for replacing the Linnaean taxonomy with the Phylocode
Taxonomy is the practice and science of classification. The word comes from the Greek τάξις, taxis, 'order' +
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He received a BS in Zoology at San Diego State University in 1973, a Masters of Science at the same institute in 1980, and a PhD in Paleontology from the University of California, Berkeley, in 1984. Currently he is Professor of Geology and Geophysics and Curator of Vertebrate Paleontology and Vertebrate Zoology at Yale University. His graduate thesis constituted the first major cladistic analysis of Diapsida, as well as arguing for the monophyly of the dinosaurs.
He followed this with an important paper (1986) on the origin of birds from theropods. This was the first detailed cladistic analysis of the theropod dinosaurs, and initiated a revolution in dinosaur phylogenetics, in which cladistics replaced the Linnaean system in the classification and phylogenetic understanding of the dinosaurs. Gauthier's 1984 and 1986 work still serve as basic references in modern cladistic analysis of the Diapsida and the Dinosauria.
More recently, Gauthier's has been applying cladistic methodology to the phylogeny of the Amniota, and argues for defining the tetrapods taxonomically as a crown clade only. Together with Kevin de Queiroz he argues for replacing the Linnaean taxonomy with the Phylocode
Partial bibliography
- Gauthier, J., 1984. A cladistic analysis of the higher systematic categories of the Diapsida. [dissertation]. Available from University Microfilms International, Ann Arbor, #85-12825, vii + 564 pp.
- Gauthier, J., 1986. Saurischian monophyly and the origin of birds. In: K. Padian, ed. The Origin of Birds and the Evolution of Flight. Memoirs California Academy of Sciences 8. pp. 1–55
- Gauthier, J., R. Estes and K. de Queiroz, 1988. A phylogenetic analysis of Lepidosauromorpha. In: R. Estes and G. Pregill, eds. The Phylogenetic Relationships of the Lizard Families. Stanford University Press, Palo Alto. pp. 15–98.
- Gauthier, J., A. Kluge and T. Rowe, 1988. Amniote phylogeny and the importance of fossils. Cladistics 4(2):105–209.
- Rowe, T. and J. Gauthier, 1990. Ceratosauria. In: D. Weishample, P. Dodson and H. Osmolska, eds., The Dinosauria. University of California Press, Berkeley. pp. 151–168.
- de Queiroz, K. and J. Gauthier, 1992. Phylogenetic taxonomy. Annual Review of Ecology and Systematics 23:449–480.
- Gauthier, J.A., 1994. The diversification of the amniotes. In: D. Prothero, ed. Major Features of Vertebrate Evolution: Short Courses in Paleontology. Paleontological Society. pp. 129–159
- Donoghue, M.J. and J.A. Gauthier. 2004. Implementing the PhyloCode. Trends in Ecology & Evolution 19(6):281–282.
External links
Vertebrate paleontology seeks to discover the behavior, reproduction and appearance of extinct spined animals, through the study of their fossilized remains. It also tries to connect, on the evolutionary timeline, the animals of the past and their modern day relatives.
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Cladistics is a philosophy of classification that arranges organisms only by their order of branching in an evolutionary tree and not by their morphological similarity, in the words of Luria et al. (1981).
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San Diego State University (SDSU), founded in 1897 as San Diego Normal School, is the largest and oldest higher education facility in the greater San Diego area (generally the City and County of San Diego), and is part of the California State University system.
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19th century - 20th century - 21st century
1940s 1950s 1960s - 1970s - 1980s 1990s 2000s
1970 1971 1972 - 1973 - 1974 1975 1976
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1940s 1950s 1960s - 1970s - 1980s 1990s 2000s
1970 1971 1972 - 1973 - 1974 1975 1976
For the song by James Blunt, see .
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University of California (UC) is a public university system in the state of California. Under the California Master Plan for Higher Education, the University of California is a part of the state's three-tier public higher education system, which also includes the California
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20th century - 21st century
1950s 1960s 1970s - 1980s - 1990s 2000s 2010s
1981 1982 1983 - 1984 - 1985 1986 1987
Year 1984 (MCMLXXXIV
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1950s 1960s 1970s - 1980s - 1990s 2000s 2010s
1981 1982 1983 - 1984 - 1985 1986 1987
Year 1984 (MCMLXXXIV
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Yale University is a private university in New Haven, Connecticut. Founded in 1701 as the Collegiate School, Yale is the third-oldest institution of higher education in the United States and is a member of the Ivy League.
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Cladistics is a philosophy of classification that arranges organisms only by their order of branching in an evolutionary tree and not by their morphological similarity, in the words of Luria et al. (1981).
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Diapsida
Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
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Osborn, 1903
Groups
See text
Diapsids ("two arches") are a group of tetrapod animals that developed two holes (temporal fenestra) in each side of their skulls, about 300 million years ago during the late Carboniferous period.
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In phylogenetics, a group is monophyletic (Greek: "of one race") if it consists of an inferred common ancestor and all its descendants. A taxonomic group that contains organisms but not their common ancestor is called polyphyletic, and a group that contains some but not all
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Dinosauria *
Owen, 1842
Orders & Suborders
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Owen, 1842
Orders & Suborders
- Ornithischia
- Cerapoda
- Thyreophora
- Saurischia
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Aves
Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Theropoda
Marsh, 1881
Infraorders
Theropods ('beast feet') are a group of bipedal saurischian dinosaurs.
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Marsh, 1881
Infraorders
- Carnosauria
- Ceratosauria
- Deinonychosauria
- Ornithomimosauria
- Oviraptorosauria
Theropods ('beast feet') are a group of bipedal saurischian dinosaurs.
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phylogenetics (Greek: phyle = tribe, race and genetikos = relative to birth, from genesis = birth) is the study of evolutionary relatedness among various groups of organisms (e.g., species, populations).
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Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Amniota
Haeckel, 1866
Living subgroups
See text
The amniotes are a group of tetrapod vertebrates that include the Synapsida (mammals and mammal-like reptiles) and Sauropsida (reptiles and dinosaurs, including birds).
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Haeckel, 1866
Living subgroups
See text
The amniotes are a group of tetrapod vertebrates that include the Synapsida (mammals and mammal-like reptiles) and Sauropsida (reptiles and dinosaurs, including birds).
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Tetrapoda
Broili, 1913
Classes
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Broili, 1913
Classes
- Amphibia
- Aves
- Mammalia
- Sauropsida (Reptilia)
- Synapsida
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For the science of classifying living things, see .
Taxonomy is the practice and science of classification. The word comes from the Greek τάξις, taxis, 'order' +
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For the phylogenetic group, see .
The Crown Group is a catering and event caterer in the United Kingdom. The London-based company began in 1978 as a collection of chefs in an agency that supplied local caterers with relief chefs...... Click the link for more information.
Linnaean taxonomy is a method of classifying living things originally devised by, and named for, Carl Linnaeus although it has changed considerably since his time. The greatest innovation of Linnaeus, and still the most important aspect of this system, is the general use of
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The International Code of Phylogenetic Nomenclature, known for short as the PhyloCode, is a developing draft for a formal set of rules governing phylogenetic nomenclature.
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