The fossil record is chock-full of the fossilized remains of spiral-shelled ammonoids, whose shapes are reminiscent of rams’ horns. But there was another type of ammonoid with long, straight, uncoiled ...

Researchers took 3-D printed reconstructions of fossil cephalopods to actual water tanks (including a swimming pool) to see how their shell structure may have been tied to their movement and lifestyle ...

Cephalopods comprise one of the most morphologically and ecologically diverse classes of mollusks, tracing their origins to the Late Cambrian. Extant lineages fall into two principal groups: ...

David Peterman in the AMMLab (Ammonoid Motility Modeling Laboratory) holding a 3-D-printed reconstruction of the planispiral ammonite, Paracoroniceras lyra. David Peterman, Kathleen Ritterbush and ...

Even if you don’t care much for marine invertebrates, you gotta love Cephalopods. Squid, octopus, nautilus, cuttlefish, they have the stylish panache and quirky evolutionary innovations that other ...

Cephalopods are a weird group of molluscs with an extensive fossil record - except when it comes to octopuses, which remain a bit of a mystery With the apparent rise in the numbers of some cephalopod ...

University of Utah paleontologists David Peterman and Kathleen Ritterbush know that it's one thing to use math and physics to understand how ancient marine creatures moved through the water. It's ...