Gastropod egg capsules preserved on an Early Cretaceous ammonite from Daghestan, Russia

A possible terrestrial egg cluster in driftwood from the Lower Jurassic (Late Pliensbachian) of Buttenheim (Franconia, Germany)

“…Autochthonous non-vertebrate eggs from the Amaltheenton Facies of Buttenheim Keupp et al (2016b) described for the first time pyritized remnants of a presumed molluscan spawn (pyritized fixation bases and flattened egg capsules) from the Late Pliensbachian sediments of the Buttenheim clay pit. They discussed Hayamia reticulata, a gastropod found in the same outcrop, as the originator, owing to comparisons with similar findings of the Lower Jurassic of Poland and the Early Cretaceous of Daghestan (Zatoń et al 2009;Zatoń and Mironenko 2015a) as well as modern spawns of neritimorph gastropods. The loosely arranged cluster of about 40 egg capsules is attached to the surface of a calcareous nodule (75 × 32 mm) of EPH and occupies an area of about 300 mm 2 (Fig.…”