Fig. 6

Pair of Lingulaticeras solenoides from the Tithonian (Upper Jurassic) of Eichstätt, Germany, on display in the Museum Bergér, Eichstätt, Germany. a Photograph under white light, taken at the museum. b Interpretative sketch. In this example, reproduction is an unlikely explanation for the juxtaposition because both specimens are microconchs, presumably males. An alternative explanation is a struggle involving rivalry for food or mating partners. Specimens are approximately 35 mm in diameter