Mf. Tortello, A new species of Leiagnostus (Trilobita, Agnostida) from the upper Tremadocian (lower Ordovician) of Salta, Argentina., AMEGHINIANA, 35(1), 1998, pp. 97-99
Leiagnostus (Trilobita, Agnostida) is an uppermost Cambrian-Lower Ordovicia
n genus known in Argentina through scarce material. In this note Leiagnostu
s ceibalitensis n. sp. is described from the Floresta Formation (upper Trem
adocian). The material was collected in the quebrada de Pinguiyal, southern
section of sierra de Mojotoro, Salta Province. It is regarded as conspecif
ic with material from that locality previously assigned to Leiagnostus turg
idulus Harrington and Leanza.