Traits taxon details
original description
(of ) Emmons, E. (1842). Geology of New-York. Part II. Comprising the survey of the second geological district. New York State Geological Survey, Albany, 429 pp., available online at https://books.google.de/books?id=oW4_AAAAcAAJ [details]
additional source
Popov, L. E.; Cocks, L. R. M. (2014). Late Ordovician brachiopods from the Chingiz Terrane, Kazakhstan, and their palaeogeography. <em>Journal of Systematic Palaeontology.</em> 12(6): 687-758., available online at https://doi.org/10.1080/14772019.2013.837844 note: Lists species as the type for genus Trematis. [details]
new combination reference
Sharpe, D. (1848). On <i>Trematis</i>, a new genus belonging to the family of brachiopodous Mollusca. <em>Quarterly Journal of the Geological Society of London.</em> 4: 66-69. note: Allocates species as the type for the new genus Trematis. [details] 
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