Background Despite the excellent fossil record of cephalopods, their early evolution is
poorly understood. Different, partly incompatible phylogenetic hypotheses have been …

Orthoconic cephalopods are subordinate, but persistent, widespread and regionally
abundant components of Triassic marine ecosystems. Here, we describe unpublished …

Although an early Cambrian origin of cephalopods has been suggested by molecular
studies, no unequivocal fossil evidence has yet been presented. Septate shells collected …

High-level classification of the nautiloid cephalopods has been largely neglected since the
publication of the Russian and American treatises in the early 1960s. Although there is …

Measuring locomotion tactics available to ancient sea animals can link functional
morphology with evolution and ecology over geologic timescales. Externally-shelled …

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 …

Nautiloids were subordinate inhabitants of Middle Devonian Rhenish reefs and in
surrounding neritic carbonate facies. However, a literature review shows the presence of …

Cephalopods of the order Lituitida Starobogatov, 1983 from the late Darriwilian and early
Sandbian strata of Estonia are revised herein. During that time, the lituitids reached their …

Based on three specimens assigned to Arthrophyllum sp., the family Lamellorthoceratidae is
reported from the Lower Devonian Talacasto Formation in the Precordillera Basin, central …

This article briefly discusses the evolution of views on the taxonomic position of Bactritoidea
within the class Cephalopoda. The history of establishment of the genus Ctenobactrites and …