Legrandella is a genus of synziphosurine,[1] a paraphyletic group of fossil chelicerate arthropods.

[2][4][5][6][3][7] Fossils of the single and type species, L. lombardii, have been discovered in deposits of the Devonian period in Cochabamba, Bolivia.

[7][2] The prosoma of Legrandella covered by a vaulted carapace with anterior projection, blunt genal cornua (posterolateral corners), humped cardiac lobe and pairs of radiated grooves.

[1] Alongside Pseudoniscus roosevelti, Legrandella lombardii is one of the few synziphosurine species that confirmed to have lateral compound eyes.

[8] The eyes are slit-like, located just below the ophthalmic ridges on each side of the carapace.