Downloaded from http://sp.lyellcollection.org/ at University College London on December 17, 2015 Coprolites from the Late Triassic Kap Stewart Formation, Jameson Land, East Greenland: morphology, classification and prey inclusions BITTEN BOLVIG HANSEN1*, JESPER MILA` N1,2, LARS B. CLEMMENSEN3, JAN SCHULZ ADOLFSSEN2, ELIZA JARL ESTRUP4, NICOLE KLEIN5, OCTA´ VIO MATEUS6,7 & OLIVER WINGS8,9 1Natural History Museum of Denmark, Øster Voldgade 5–7, DK-1350 Copenhagen K, Denmark 2Geomuseum Faxe/Østsjællands Museum, Østervej 2, DK-4640 Faxe, Denmark 3Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark 4Geocenter Møns Klint, Stenga˚rdsvej 8, DK-4751 Borre, Denmark 5Staatliches Museum fu¨r Naturkunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany 6Department of Earth Sciences, GeoBioTec, Faculdade de Cieˆncias e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal 7Museu da Lourin˜ha, Rua Joa˜o Luis de Moura 95, 2530-158 Lourinha˜, Portugal 8Landesmuseum Hannover, Willy-Brandt-Allee 5, 30169 Hannover, Germany 9Museum fu¨r Naturkunde Berlin, Invalidenstraße 43, D-10115 Berlin, Germany *Corresponding author (e-mail:
[email protected]) Abstract: A large collection of vertebrate coprolites from black lacustrine shales in the Late Trias- sic (Rhaetian–Sinemurian) Kap Stewart Formation, East Greenland is examined with regard to internal and external morphology, prey inclusions, and possible relationships to the contemporary vertebrate fauna. A number of the coprolites were mineralogically examined by X-ray diffraction (XRD), showing the primary mineral composition to be apatite, clay minerals, carbonates and, occasionally, quartz in the form of secondary mineral grains. The coprolite assemblage shows mul- tiple sizes and morphotypes of coprolites, and different types of prey inclusions, demonstrating that the coprolite assemblage originates from a variety of different producers.