Early teleost otolith morphogenesis observed in the Jurassic of Franconia, Bavaria, southern Germany by Werner Schwarzhans, Helmut Keupp

Get full text

The dorsal shell wall structure of Mesozoic ammonoids by Gregor Radtke, Helmut Keupp

Get full text

Form and formation of flares and parabolae based on new observations of the internal shell structure in lytoceratid and perisphinctid ammonoids by Gregor Radtke, René Hoffmann, Helmut Keupp

Get full text

Conellae, enigmatic structures on cephalopod shells—shapes, distribution, and formation by René Hoffmann, Aleksandr Mironenko, Helmut Keupp

Get full text

A possible terrestrial egg cluster in driftwood from the Lower Jurassic (Late Pliensbachian) of Buttenheim (Franconia, Germany) by Franz-Josef Scharfenberg, Helmut Keupp, Johann Schobert

Get full text

Late Jurassic (Upper Kimmeridgian) Heterobranchia (Gastropoda) of the coral-facies of Saal near Kelheim and the viciniy of Nattheim (Germany) by Joachim Gründel, Helmut Keupp, Fritz Lang, Alexander Nützel

Get full text