The largest known specimen of ammonite, Parapuzosia seppenradensis (Cretaceous, 80 Ma), measures 1.74 m and was discovered in 1895 in a quarry close to Lüdinghausen-Seppenrade . In the photograph, it figures with the zoologist who described it, Hermann Landois, who reconstructed its missing chamber with wire and paper. Landois assumed that the chamber constituted a quarter of the outer whorl, estimating it measured 2.55 m, but Teichert and Kummel (1960) estimated it would have ¾ of a whorl, with an original diameter of around 3.5 m. It is exhibited in the lobby of the LWL Natural History Museum in Münster (Germany). There are copies at the Georg Agricola Technical University (THGA) in Bochum; in Seppenrade, Germany; at the Museum of Paleontology at the University of California, Berkeley; in La Plata; and in other museums around the world. Another ammonite of the genus Parapuzosia is in the National Museum of Natural History in Sofia, Bulgaria, with...