Fig. 3

Sketches of the regurgitalite shown in Fig. 2a and the questionable coprolite or regurgitalite of 4. a PIMUZ 35200, Hangenberg Black Shale, Famennian, Madene El Mrakib (Morocco); note the striation of some of the shell fragments and the questionable ammonitella (arrow); organic remains are shown in black. b PIMUZ 35202, Kimmeridgian, Painten (Germany); note the remains of at least 30 small ammonite aptychi, some of which are broken; the matrix is much thicker than in the Famennian regurgitalites