Geologic and hydrologic concerns about pupfish divergence during the last glacial maximum

Complete Mitochondrial Genomes and Phylogenetic Analysis of Genus Henricia (Asteroidea: Spinulosida: Echinasteridae)

“…Henricia is known for its wide-ranging geographical distribution and intraspecific morphological variations. These variations are due to differences in environmental conditions that can result in phenotypic plasticity, making it difficult to identify species within the genus [ 9 , 10 , 11 ]. Henricia species are distributed in cold water.…”

Long-distance dispersal over land by fishes: extremely rare ecological events become probable over millennial timescales

“…We further argue that a young age for this species does not decrease its conservation value but enhances it due to the evolution of such a unique life history and phenotype in a remarkably short time period. Knott et al (KEA) [10] do not dispute this young age for DHP, but rather the resulting divergence time estimates for Cyprinodon as a whole and its dispersal across North America in the past 25 thousand years (kya) [1]. These ages were based on our internal calibration of the stem age of the Laguna Chichancanab pupfish adaptive radiation to 8 kya, based on fossil evidence and isotopic analyses of multiple cores that indicated that the lake basin was dry prior to that time point [11].…”