"Macroevolution is the study of patterns and processes associated with evolutionary change at and above the species level, and includes investigations of both evolutionary tempo and mode. Tempo refers to the rate or pace of change, whereas mode refers to how that change occurs. Both the tempo and m...
"For this study, in addition to museum vouchers, 1437 specimens of Minuca burgersi (Holthuis, 1967) were collected from crab colonies at 105 locations in the western Atlantic Ocean to examine diversity in a species with a large geographic range. Both allometric and geometric morphometry were couple...
"Whether the upper limb branch of Paleozoic “biramous” arthropods, including trilobites, served a respiratory function has been much debated. Here, new imaging of the trilobite Triarthrus eatoni shows that dumbbell-shaped filaments in the upper limb branch are morphologically comparable with gill s...
In Earth’s history, there have been several catastrophes in which a large part of life on Earth has been wiped out. In Campus Talks on ARD-alpha, Wolfgang Kießling shows parallels to the current climate situation on Earth. He gives an outlook to what extent a mass extinction of species is to be exp...
"Many dinosaurs may have shown ecological differentiation between hatchlings and adults, possibly because of the great size differential. The basal ceratopsian Psittacosaurus lujiatunensis is known from thousands of specimens from the Lower Cretaceous of China and these include many so-called ‘juve...
Younger paleontologists are working to overcome historical legacies of their discipline and change how people learn about natural history.
During an expedition to Tunisia, Mohamad Bazzi (University Uppsala, Sweden) invited local colleagues and citizens to participate in the field work. In a...
"In order to maximize the utility of future studies of trilobite ontogeny, we propose a set of standard practices that relate to the collection, nomenclature, description, depiction, and interpretation of ontogenetic series inferred from articulated specimens belonging to individual species. In som...
"The famous Rhaetian bone bed (Late Triassic, 205 Ma) is well known because it marks a major switch in depositional environment from terrestrial red beds to fully marine conditions throughout the UK and much of Europe. The bone bed is generally cemented and less than 10 cm thick. However, we report...
"Exceptional fossil preservation is required to conserve soft-bodied fossils and even more so to conserve their behaviour. Here, we describe a fossil of a co-occurrence of representatives of two different octobrachian coleoid species. The fossils are from the Toarcian Posidonienschiefer of Ohmden n...
"The purpose of this vignette is to guide users through the basic capabilities of the ‘divDyn’ package. Fossil occurrence databases, such as the Paleobiology Database (PaleoDB, http://www.paleobiodb.org/, http://fossilworks.org) are readily available to be used in analyses of diversity, extinction ...
