2011. MORPHOLOGIC VARIATIONS OF THE TRACE FOSSIL RUTICHNUS IN CM-THICK TURBIDITES FROM THE VERGHERETO FORMATION (NORTHERN APENNINES, ITALY). RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA . 117, 1 (Mar. 2011). DOI:https://doi.org/10.13130/2039-4942/5968.