: The term "extima" is used in the taxonomic reports for specific subspecies, such as the bird Aimophila ruficeps extima and the rare succulent Dudleya virens subsp. extima . Corporate & Business Entities ITIS - Report: Aimophila ruficeps extima

: There are field trial reports for EXTIMA 100 , a rumen bypass fat used in dairy cows. These reports indicate that the supplement can increase milk production by approximately 2.19 kg per cow per day.

: One of the earliest medical reports mentioning "extima" is by G.J. Du Vernoi, titled "Aer intestinorum tam sub extima quam intima tunica inclusus" . This 1730 report on pneumatosis intestinalis describes air trapped beneath the outermost (extima) and innermost (intima) layers of the intestinal wall.