Map of Germany (Bavaria coloured) with the position of the clay pit south of Buttenheim (left) and its schematized profile (right): The red lines mark the four reworking horizons.

 
 
  Part of: Scharfenberg F-J, Keupp H, Schobert J (2022) A possible terrestrial egg cluster in driftwood from the Lower Jurassic (Late Pliensbachian) of Buttenheim (Franconia, Germany). Zitteliana 96: 135-143. https://doi.org/10.3897/zitteliana.96.84493