Dominican Snout [SEP] parent taxon
Dominican snout
The Dominican snout ("Libytheana fulvescens") is a species of snout butterfly that is endemic to Dominica, an island nation in the Caribbean Lesser Antilles.
Taxonomy.
It was first described in 1904, as "Libythea fulvescens", by Percy Ireland Lathy of the Zoological Society of London. It was reassigned to the new genus "Libytheana" in 1943 by American entomologist Charles D. Michener, who split "L. fulvescens" and three other New World species from the Old World "Libythea" species
, unusual among contemporary amniotes and indicating that Ianthodon occupied a different trophic niche from the bulbous-crowned "Haptodus" to which it was closely related. Like other sphenacodonts, "Ianthodon" has a tall lacrimal bone, and so would have had a proportionally taller snout than more basal synapsids such as varanopids and eothyridids.
Classification.
Ianthodon belongs to the clade of Spenacodontia, replacing Haptodus as the basalmost taxon in the clade. The taxon placement on this parsimonious tree results from the evaluation of the bootstrap values between the