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Johan Wilhelm Dalman
Johan Wilhelm Dalman (November 4, 1787 in Hinseberg, Västmanland – July 11, 1828 in Stockholm) was a Swedish physician and a naturalist. He first studied at Christianfeld in Schleswig-Holstein then at the University of Lund and the University of Uppsala. He was mainly interested in entomology and botany. He received his degree in 1816 then his doctorate in 1817 from the University of Uppsala. Dalman became librarian of the Royal Swedish Academy of Sciences, a member of the Academy in 1821, then director of the zoological garden, then demonstrator in botany at the Karolinska Institutet of Stockholm.
Dalman's main interest lay in entomology and botany, but he also became involved in the systematics and taxonomy of trilobites. In 1771 Johann Ernst Immanuel Walch (1725-1778) first used the term trilobite. Researchers had tried to link trilobites to extant groups such as chitons and various arthropods. Before Walch’s work this had led to great confusion. By 1820 the term “trilobite” was widely used, except by Dalman who suggested the term “palaeades”. Dalman had drawn attention to the weakly defined axial furrows in the Ordovician trilobite ''Nileus''. The trilobite genus ''Dalmanites'' in the order Phacopida was named in his honour. ''Dalmanites'' was widespread during the Ordovician and Silurian.〔(Ed Rogers Geology Books )〕
He was the author of ''De narcoticis observations'' (1816), ''Förteckning paa Skrifter i medicinska vetenskaperna, samt i kemi och Naturalhistorie, utgifne i Sverige åren 1817, 1818 and 1819'' (1820), ''Om Palaeaderna, eller de så kallade Trilobiterna'' (1827) and very many works on entomology.
Entomology 1821-1825
*1818, Några nya Genera och Species af Insecter beskrifna. ''Kungliga Svenska Vetenskapsakademiens Handlingar'' 39:69-89
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