[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Late Cretaceous marine amniotes from Czech Republic



From: Ben Creisler
bcreisler@gmail.com


A new online paper:

Benjamin P. Kear, Boris Ekrt, Josef Prokop and Georgios l. Georgalis (2013)
Turonian marine amniotes from the Bohemian Cretaceous Basin, Czech Republic.
Geological Magazine (advance online publication)
DOI: http://dx.doi.org/10.1017/S0016756813000502
http://128.232.233.5/action/displayAbstract?fromPage=online&aid=8957262&fulltextType=RA&fileId=S0016756813000502

Despite being known for over 155 years, the Late Cretaceous marine
amniotes of the Bohemian Cretaceous Basin in the Czech Republic have
received little recent attention. These fossils are however
significant because they record a diverse range of taxa from an
incompletely known geological interval: the Turonian. The presently
identifiable remains include isolated bones and teeth, together with a
few disarticulated skeletons. The most productive stratigraphical unit
is the Lower–Middle Turonian Bílá Hora Formation, which has yielded
small dermochelyoid sea turtles, a possible polycotylid plesiosaur and
elements compatible with the giant predatory pliosauromorph
Polyptychodon. A huge protostegid, together with an enigmatic
cheloniid-like turtle, Polyptychodon-like dentigerous components, an
elasmosaurid and a tethysaurine mosasauroid have also been found in
strata corresponding to the Middle–Upper Turonian Jizera Formation and
Upper Turonian – Coniacian Teplice Formation. The compositional
character of the Bohemian Cretaceous Basin fauna is compatible with
coeval assemblages from elsewhere along the peri-Tethyan shelf of
Europe, and incorporates the globally terminal Middle–Upper Turonian
occurrence of pliosauromorph megacarnivores, which were seemingly
replaced by mosasauroids later in the Cretaceous.

===