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Several new and well preserved lizard skulls from the Late Cretaceous of the Gobi Desert of Mongolia, referred to as Mlmeosaurus crassus Gilmore, 1943 in the literature, are assigned to two new genera and species, Priscagama gobiensis and Pleurodontagama aenigmatodes. They, together with Mimeosaurus crassus, comprise a newly described subfamily Priscagaminae of the family Agamidae. Assignement of...
Observations are made on the distribution and variability in the Globigerinoldes-Orbulina group in the Middle Miocene (Badenian) of Central Paratethys. The analysis of distribution and morphological diversity of planktic foraminifera versus environmental conditions prevailing in the Badenian of the studied area suggests that regional differentiation of the microfauna was controlled by bathymetric...
The morphology and intraspecific variation of Spiroplectammina spectabilis (Grzybowski) is investigated based upon topotype material. Linear measurements and eigenshape analyses of species of Spiroplectammina described from California show them to be conspecific with S. spectabilis. Two ecophenotypic forms are distinguished: S. spectabilis forma trinitatensis — a robust Eocene variety, and S. spectabilis...
The periderm of Ordovician Pterobranchites antiquus Kozłowski, 1967 has been examined with SEM. Four components have been recognized within the thecal wall: outer lining, cortex, fusellum and inner lining. The cortex material is composed of thick, straight, unbranched fibrils arranged in several layers as in cortical layer of the graptolite periderm, p. antiquus, previously referred to cephalodiscid...
Members of four families are recognized from etched Wenlockian carbonates from the eastern Poland. The acrotretids are of special interest as being recorded in the Polish Silurian for the first time. Of two acrotretid species, Opsiconidion podlasiensis is described as new. The dorsal median septum of the genus Opsiconidion is discussed in detail.
Warm-water foraminifer assemblages indicate that the area of the Polish Lowlands have been situated within the extend of influences of the Mediterranean province In the Priabonian. The paper presents a first attempt to summarize the available data on influences of that province in the extra-Carpathian Poland. The stratigraphic setting of the described species and ecological and bathymetric conditions...
The fusellar tissue of an Ordovician graptoblast has been studied with ТЕМ. It was found that it is solely composed of Cephalodiscus-type fibrils, unknown hitherto in graptolites. The fusellar tissue of the studied specimen has more in common with recent pterobranchs than with graptolites.
Trois nouvelles espèces ďOstéostracés sont décrites du Dévonien inférieur (Gédinnien) de Podolie (RSS ďUkraine) Benneviaspis whitei sp. n. est proche des espèces les plus évoluées de ce genre. Benneviaspis polonica sp. n., dépourvu de processus cornuaux, serait également une forme très dérivée au sein du genre Benneviaspis. Tegaspis waengsjoei sp. n. paraît plus primitif que les deux espèces de ce...
The palynological assemblages zones and subzones provide biostratigraphic framework for the investigated sections. The Ludbladispora obsoleta — Protohaploxypinus pantii zone established for the Lower Buntsandstein strata in three sections of western Poland is correlated with the Protohaploxypinus association, concurrent with Otoceras in rock of the Griesbachian stage of East Greenland. Selected miospore...
The following forms have been recognized in the Upper Pliocene fauna from the karstic deposits near Działoszyn: Mioproteus wezei sp. n. (Proteidae), Palaeobatrachus sp. and Pliobatrachus cf. langhae (Palaeobatrachidae), Pelobates fuscus (Pelobatidae), Bufo bufo (Bufonidae), Rana sp. (Ranidae), Emys orbicularis antiqua (Emydidae), Ophisaurus pannonius and Anguis cf. fragilis (Anguidae), Lacerta cf...
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