https://mapress.com/zt <p><strong>Zootaxa</strong> is a mega-journal for zoological taxonomists in the world</p> Magnolia Press en-US Zootaxa 1175-5326 https://mapress.com/zt/article/view/zootaxa.5842.1.1 <p>Knowledge about Ecuadorian primates is abundant yet scattered. This review offers a historical analysis of Ecuador’s 23 recognized taxa, beginning with the first written mention of primates in present-day Ecuador in 1553. Over the next 300 years, little information was produced on this group of mammals until 1850, when the number of publications increased, marking the first use of binomial nomenclature and the description of the first species based on Ecuadorian specimens. For clarity, the history of primate research in Ecuador is divided into four periods: Anecdotal (1553–1850), Early (1850–1940), Modern (1940–1980), and Contemporary (1980–present). A total of 324 references were reviewed, documenting the increase in species richness over time. The study includes a taxonomic catalogue of all scientific names used, records of the first confirmed sightings of each species, the earliest locality data, and the first specimens deposited in scientific collections.</p> DIEGO G. TIRIRA Copyright (c) 2026 2026-07-01 2026-07-01 5842 1 1 76 10.11646/zootaxa.5842.1.1