Drainage-specific diversity
The study associates the name with Guadalupe River populations and southern Colorado River tributaries, including the Llano and Pedernales. Populations in northern Colorado tributaries were genetically distinct. The limestone spring systems are separated by the Llano Uplift, a geological barrier with little comparable habitat.
Sources: Phylogeny, diversity, and species delimitation of the North American Round-Nosed Minnows
Guide sources
Research reviewed 2026-10-19.
- Phylogeny, diversity, and species delimitation of the North American Round-Nosed Minnows — Molecular Phylogenetics and Evolution
