Université de Fribourg

Preliminary observations on the bone histology of the Middle Triassic pseudosuchian archosaur Batrachotomus kupferzellensis reveal fast growth with laminar fibrolamellar bone tissue

Klein, Nicole ; Foth, Christian ; Schoch, Rainer R.

In: Journal of Vertebrate Paleontology, 2017, vol. 37, no. 4, p. e1333121

The bone tissue of femur, rib, and gastralia from three different individuals of the Middle Triassic pseudosuchian Batrachotomus kupferzellensis from southern Germany is studied. The femoral bone tissue comprises laminar fibrolamellar bone tissue throughout and is stratified by three annual growth cycles, indicating that the individual died early in its fourth year of life, at which time it...

Université de Fribourg

The girdles of the oldest fossil turtle, Proterochersis robusta, and the age of the turtle crown

Joyce, Walter G. ; Schoch, Rainer R. ; Lyson, Tyler R.

In: BMC Evolutionary Biology, 2013, vol. 13, no. 1, p. 266

Background: Proterochersis robusta from the Late Triassic (Middle Norian) of Germany is the oldest known fossil turtle (i.e. amniote with a fully formed turtle shell), but little is known about its anatomy. A newly prepared, historic specimen provides novel insights into the morphology of the girdles and vertebral column of this taxon and the opportunity to reassess its phylogenetic...

Bibliothèque cantonale jurassienne

A relict basal tetrapod from Germany : first evidence of a Triassic chroniosuchian outside Russia

Witzmann, Florian ; Schoch, Rainer R.

In: Naturwissenschaften : Organ der Max-Planck-Gesellschaft zur Foerderung der Wissenschaften : Organ der Gesellschaft deutscher Naturforscher und Aerzte, 2007, p. 1