Can ovarian follicles fossilize?

Preservation of ovarian follicles reveals early evolution of avian reproductive behaviour

(2013) Xiaoting Zheng et al.   NATURE

Controls on Gut Phosphatisation: The Trilobites from the Weeks Formation Lagerstätte (Cambrian; Utah)

(2012) Rudy Lerosey-Aubril et al.   PLoS One

Re-evaluating Moodie’s Opisthotonic-Posture Hypothesis in Fossil Vertebrates Part I: Reptiles—the taphonomy of the bipedal dinosaurs Compsognathus longipes and Juravenator starki from the Solnhofen Archipelago (Jurassic, Germany)

(2012) Achim G. Reisdorf et al.   Palaeobiodiversity and Palaeoenvironments

Histological, chemical, and morphological reexamination of the “heart” of a small Late Cretaceous Thescelosaurus

(2011) Timothy P. Cleland et al.   NATURWISSENSCHAFTEN

Fossilized melanosomes and the colour of Cretaceous dinosaurs and birds

(2010) Fucheng Zhang et al.   NATURE

The remarkable fossils from the Early Cretaceous Jehol Biota of China and how they have changed our knowledge of Mesozoic life

(2009) Michael J. Benton et al.   PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION