1. Mosasaurids (Squamata) from the Maastrichtian phosphates of Morocco: biodiversity, palaeobiogeography and palaeoecology based on tooth morphoguilds;Bardet;Gondwana Research,2015
2. Les Vertébrés des phosphates crétacés-paléogènes (72,1-47,8 Ma) du Maroc;Bardet,2017
3. Coprolites from the Bridger Formation of Wyoming: their composition and microorganisms;Bradley;American Journal of Science,1946
4. Late Cretaceous coprolites from Western Canada;Broughton;Palaeontology,1978
5. On the discovery of coprolites, or fossil faeces, in the Lias at Lyme Regis, and in other formations;Buckland;Transactions of the Geological Society of London,1835