The fossil record is the primary source of data used to study predator-prey interactions in
deep time and to evaluate key questions regarding the evolutionary and ecological …

Belemnites are an extinct group of Mesozoic coleoid cephalopods with a fossil record
ranging from the early Late Triassic [about 240 million years ago (Mya)] to the Cretaceous …

Molluscs comprise the second largest phylum of animals (after arthropods), occurring in
virtually all habitats. Some are commercially important, a few are pests and some carry …

Heteromorphs are ammonoids forming a conch with detached whorls (open coiling) or non‐
planispiral coiling. Such aberrant forms appeared convergently four times within this extinct …

Radular teeth have to cope with wear, when interacting with ingesta. In some molluscan
taxa, wear-coping mechanisms, related to the incorporation of high contents of iron or silica …

Owing to their great diversity and abundance, ammonites and belemnites represented key
elements in Mesozoic food webs. Because of their extreme ontogenetic size increase by up …

Fossil oral ejecta that exclusively contain bivalved calcitic lower jaws of ammonites (=
aptychi) from Late Jurassic Solnhofen-type deposits of southern Germany are described …

Extant cephalopod soft tissues are commonly infested by various lineages of parasites
making it plausible that extinct cephalopods also had a variety of parasites. Direct evidence …

Due to the lower fossilization potential of chitin, non-mineralized cephalopod jaws and arm
hooks are much more rarely preserved as fossils than the calcitic lower jaws of ammonites …

Jaws of ammonites which inhabited the Panboreal Superrealm during the Jurassic and
Cretaceous are poorly known in comparison to those of Tethyan ammonoid faunas. This …