The mid-Paleozoic was punctuated by a rapid radiation of durophagous (shell-crushing)
predators. These new predators were primarily placoderm and chondrichthyan fishes but …

One of the leading textbooks in its field, Bringing Fossils to Life applies paleobiological
principles to the fossil record while detailing the evolutionary history of major plant and …

Externally shelled cephalopods with coiled, planispiral conchs were ecologically successful
for hundreds of millions of years. These animals displayed remarkable morphological …

Fractal-like, intricate morphologies are known to exhibit beneficial mechanical behavior in
various engineering and technological domains. The evolution of fractal-like, internal walls …

Although squid are among the most versatile swimmers and rely on a unique locomotor
system, little is known about the swimming mechanics and behavior of most squid …

Abstract Information pertaining to the function of ammonoid shells is generated by analogy
to living cephalopods, by measurement or experiment designed to elucidate the properties …

The buoyancy, stability, and orientation of a shelled cephalopod in water are the predictable
products of shell geometry, body chamber length, and such physical parameters as shell …

Analysis of hydrodynamic design in fossil cephalopods provides an informative means for
evaluating the palaeobiology of this important group of animals. Two tank tests show that …

Multidisciplinary research on the habitats and life-habits of ammonoids of the Upper
Cretaceous Bearpaw Formation is based on hydrostatics and hydrodynamic aspects of shell …

The causes of heterogeneity in evolutionary rates are a key question in macroevolution.
Origination and extinction rates are closely related to abiotic factors, such as climate 1, 2 and …