sketch book

Digital drawing of the Chirotherium trackmaker – and why the supposed thumb is actually the little toe.

A panoply of Lower Permian tetrapods from the Remigiusberg locality, developed over years.

A little exercise to break in a new device – with no scientific claim.

Digital painting of a tiny hybodont – created for a conference poster.

Sketches of an Adélie penguin and a hypothetical proto-shoebill – notes on Cenozoic birds.

Two study heads from spare studio moments: Arsinoitherium and the cave bear.

Construction drawing of Rhabdocidaris – why echinoderms are harder than dinosaurs.

Pencil and oil wash: two North American merycoidodontids, preliminary studies for oil paintings.

Head studies of Moradisaurus based on a maquette – a giant among captorhinids.

One synapsid, four dinosaurs: studies of perinatal juveniles and their egg types.

Pencil sketches of Fayolia, the egg capsules of xenacanthid freshwater sharks from the Carboniferous and Permian.

Digital drawings roughly based on models – two theropods from the Solnhofen archipelago.