Davis T. J., Hernández H. M., Starr G. D., Gómez-Hinostrosa C., A distinctive new species of Thelocactus (Cactaceae) from Oaxaca, Mexico, Phytotaxa, 2018, 361(1):115-122, doi: 10.11646/phytotaxa.361.1.10
The protologue of Thelocactus tepelmemensis based on measurements of 20 plants, herbarium specimens and seed microscopy. It gives diagnostic traits, localities on limestone canyon walls and a comparison with Thelocactus leucacanthus.