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 …

Most planispirally and regularly coiled ammonoid species show to varying degrees
continuous morphological intraspecific variation of their shell. In many species, individuals …

One of the most common responses of marine ectotherms to rapid warming is a reduction in
body size, but the underlying reasons are unclear. Body size reductions have been …

Palaeozoic ammonoids are not only valuable index fossils, but are also valuable for
discriminating global crises in biodiversity such as the end-Eifelian Kačák Event, the …

'Early bursts' of morphological disparity (ie diversity of anatomical types) are common in the
fossil record. We typically model such bursts as elevated early rates of independent …

Cephalopods are diverse, highly developed molluscs capable of swimming and jet
propulsion. These animals are an important component of present-day marine ecos-tems …

Jurassic-Cretaceous (JK) ammonoids experienced remarkably rapid rates of evolution and
extinction. The processes that fueled this evolutionary volatility are not well understood …

На родовом уровне проведена ревизия наиболее характерных для кимериджского и
волжского ярусов таксонов бореальных исуббореальных аммонитов, относящихся к …

Changes in ammonite morphology during the earliest Early Aptian (Cretaceous) of an
epicontinental sea in northern Germany were investigated based on new and rich material …

Buckman's Law of Covariation states that ammonoid shell shape and ornamentation are
typically correlated, such that compressed, involute forms have light ornament while more …