Reference

Michael Wuttke (2012): Redescription of the Middle Eocene frog Lutetiobatrachus gracilis WUTTKE in SANCHIZ, 1998 (Lower Geiseltalian, »Grube Messel«, near Darmstadt, southern Hesse, Germany) – Kaupia - Darmstädter Beiträge zur Naturgeschichte – 18: 29 - 41.