A new dasyclad alga -Acicularia boniae n.sp. - is described from Middl
e Triassic (?Ladinian) of the Piano del Minatore Formation, outcroppin
g in the Cozzo del Pellegrino area (Calabria, southern Italy). The sys
tematic position of this species, with respect to the genus Acicularia
and morphogenera Aciculella and Terquemella, is discussed.