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 …

A review of fossil evidence supports a pelagic mode of life (in the water column) of
ammonoids, but they may have spent their life close to the seabottom (demersal) …

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 …

The history of Earth's biodiversity is punctuated episodically by mass extinctions. These are
characterized by major declines of taxon richness, but the accompanying ecological …

Coleoid cephalopod molluscs comprise squid, cuttlefish and octopuses, and represent
nearly the entire diversity of modern cephalopods. Sophisticated adaptations such as the …

Large, actively swimming suspension feeders evolved several times in Earth's history,
arising independently from groups as diverse as sharks, rays and stem teleost fishes, and in …

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

Palaeontologists have long sought to explain the diversification of individual clades to whole
biotas at global scales. Advances in our understanding of the spatial distribution of the fossil …

The current knowledge about the ammonoid/habitat relation is reviewed and in part newly
interpreted. The autecology of ammonoids, such as ontogeny and habitat, based on …

Current knowledge on the ammonoid buccal mass and jaw apparatus is synthesized based
on in situ fossil records from 109 genera that are distributed in 30 superfamilies of 8 …