Ammonite eggs and ammonitellae from the Kimmeridge Clay Formation (Upper Jurassic) of Dorset, England Etches, Steve ; Clarke, Jane ; Callomon, John Abstract Publication: Lethaia Pub Date: June 2009 DOI: 10.1111/j.1502-3931.2008.00133.x Bibcode: 2009Letha..42..204E