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Chitinozoans in the Wenlock-Ludlow boundary beds of the East Baltic
chitinozoans correlation Wenlock Ludlow Silurian East Baltic
2009/10/21
The distribution of chitinozoans in the Wenlock–Ludlow boundary beds was studied in five drill core sections of the East Baltic. It was established that most of the typical Wenlock chitinozoan sp...
Conodont biostratigraphy in the Middle-Upper Ordovician boundary beds of Estonia
conodonts correlation biostratigraphy Ordovician Estonia
2009/10/21
Conodonts of the uppermost Uhaku, the Kukruse, and the lower Haljala stages (uppermost Darriwilian and lower Sandbian) of Estonia are discussed. The distribution of conodonts within the Pygodus serra,...
New genus of chondrichthyans from the Silurian-Devonian boundary deposits of Tuva (Russia)
Chondrichthyans Elegestolepids Silurian Devonian Tuva
2009/10/20
The scales of T.schultzei display significant morphological variation and are characterized by a very fine, comparatively wide and flat crown with longitudinal ribs and a small and short neck. The gro...