The gender taxonomy is a

classification Classification is a process related to categorization, the process in which ideas and objects are recognized, differentiated and understood. Classification is the grouping of related facts into classes. It may also refer to: Business, organizat ...

of the range of different levels at which

human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, culture, ...

s vary in

sexual characteristics Sexual characteristics are physical traits of an organism (typically of a sexually dimorphic organism) which are indicative of its biological sex. These can include sex organs used for reproduction and secondary sex characteristics which distingui ...

. It is mainly used by medical specialists working in the area of sex research. "A review of cross-gender taxonomies shows that previous observers have identified and labeled a homosexual type far more consistently than any other category of male gender dysphoric."

Ray Blanchard Ray Milton Blanchard ( ; born October 9, 1945) is an American-Canadian sexologist, best known for his research studies on transsexualism, pedophilia and sexual orientation. He found that men with more older brothers are more likely to be gay tha ...

,
The classification and labeling of nonhomosexual gender dysphorias
, ''

Archives of Sexual Behavior The ''Archives of Sexual Behavior'' is a peer-reviewed academic journal in sexology. It is the official publication of the International Academy of Sex Research. History The journal was established in 1971 by Richard Green, who served as its ed ...

'' 18/4 (1989): 315–334.

John Money John William Money (8 July 1921 – 7 July 2006) was a New Zealand psychologist, sexologist and author known for his research into sexual identity and Sex determination and differentiation (human), biology of gender. He was one of the first ...

and

Milton Diamond Milton Diamond (born March 6, 1934) is an American Professor Emeritus of anatomy and reproductive biology at the University of Hawaiʻi at Mānoa. After a career in the study of human sexuality, Diamond retired from the university in December 200 ...

are probably the best known researchers in this field. Money earned his PhD for research into human

hermaphroditism In reproductive biology, a hermaphrodite () is an organism that has both kinds of reproductive organs and can produce both gametes associated with male and female sexes. Many taxonomic groups of animals (mostly invertebrates) do not have separ ...

and

pseudohermaphroditism Pseudohermaphroditism is a condition in which an individual has a matching chromosomal and gonadal tissue (ovary or testis) sex, but mismatching external genitalia. Female pseudohermaphroditism refers to an individual with ovaries and external gen ...

, now known as

intersex Intersex people are individuals born with any of several sex characteristics including chromosome patterns, gonads, or genitals that, according to the Office of the United Nations High Commissioner for Human Rights, "do not fit typical bina ...

conditions. The

taxonomy Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...

starts at the simplest,

biological Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary in ...

level and traces differentiations expressed at the increasingly complicated levels produced over the course of the human

life cycle Life cycle, life-cycle, or lifecycle may refer to: Science and academia *Biological life cycle, the sequence of life stages that an organism undergoes from birth to reproduction ending with the production of the offspring * Life-cycle hypothesis ...

Types of gender taxonomy

Gendered sexuality taxonomy

A taxonomy of gendered sexuality, presented below, can better define the terms relevant to human sexuality and takes into account the interaction over time among sex, gender, and sexual fantasies, desires, practices of persons in intimate relationships at both the level of self-identity and attribution by others, however factual, biological differences in gender remains unequivocally binary. The taxonomy is a combination of classifications based on the genetic sexes of persons in relationships and categorizations based on those persons' social genders to arrive at classifications of gendered sexuality. Terminology for this taxonomy was drawn from everyday language and can be used for descriptive, diagnostic, and theoretical purposes. A Basic Taxonomy of Gendered Sexuality

Notes and references

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Sex differences in humans