"From 65 to 230 million years ago" . . . . . . . . . "Form, structure and function of shell and siphuncle in coiled Mesozoic ammonoids" . . . . . . . . . "Form, structure and function of shell and siphuncle in coiled mesozoic ammonoids" . . . . . . "Mesozoikum." . . . . "Morphologie (Biologie)" . . "Morphologie." . . "Ammonoidea." . .