Ictonyx harrisoni

Ictonyx harrisoni (meaning "Harrison's weasel claw", after anthropologist Terry Harrison) is an extinct species of mammal belonging to the Mustelidae family that lived in East Africa during the Early Pliocene epoch, about 3.85–3.63 million years ago. It is known from two fossilized specimens, both discovered at the site of Laetoli, Tanzania. These remains were first reported in 1987 as specimens of Propoecilogale bolti, but later analysis suggests that they represent a different form more closely related to the modern striped polecat, and so were redescribed as a separate species in 2025. The holotype specimen consists only of jaw elements, though the referred specimen is more complete, preserving material from the skull, limbs and vertebrae.