As some of you probably know I made several small nautiloid-models some time ago. I wanted to sculpt another bigger (and more detailed) model, similar to the giant orthocone from the sea monster documentation of the BBC, because this reconstruction looks very impressive. The shell is already made, and the radula too. OK, at this this step problems began. I used mainly nautilus beaks as pattern, but then I discovered that their beaks were really completely different from those of nautilus and that there is furthermore the problem of the correct reconstruction and position of the aptychus. Most models and illustrations show no aptychus but more some kind of hood-like skin double similar to those of nautilus. I have now really the problem that I have no good pattern of orthocone beaks, radulas and aptychus. During my search for immages of nautiloid oral anatomy, I found a very interesting site which deals with this topic. There are also some very good reconstructions of ammonites with several types of aptychus: http://kosmoceraten.de/Neuigkeiten/body_ammonitenmodell.html The site is in german, but the pictures alone are surely very interesting (and still a bit confusing). Coincidentally some of those wonderfull fossils with complete aptychus were found only about 30km away from where I live. By the way, has somebody a picture of the ammonite with the preserved soft body?