Difference between revisions of "RECENT PUBLICATIONS ON FORAMINIFERA 2011 (5)"
| Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
<font size="4"> | <font size="4"> | ||
| − | + | {{Recent Publications on Foraminifera Navigation}}<font size="2"> | |
| + | |||
| + | ==FORAMINIFERA FROM THE UPPER CRETACEOUS OF NORTHERN JAMES ROSS ISLAND (ANTARCTICA)== | ||
| + | |||
| + | <font size="2"> | ||
| + | During geological mapping of the northern James Ross Island a number of samples from Upper Cretaceous lithologies were gathered to test the presence of foraminifers as a possible tool for stratigraphic evaluation of Upper Cretaceous strata. Limited number of samples did not provide foraminiferal content large enough to give relevant information for biostratigraphic conclusions. Samples from older sediments of Whisky Bay and Kotick Point formations (Albian – Turonian) were either not fossiliferous or contained scarce specimens of agglutinated foraminifers. Foraminiferal assemblages from younger sediments of Hidden Lake and Santa Marta formations (Coniacian – Campanian) contained species with both agglutinated and calcareous types of tests. Many of studied marine sediments were barren of foraminifers, probably due to late diagenetic secondary decalcification. Taxonomy of low-diversified assemblages was carried out and a biostratigraphical and palaeobiogeographical significance discussed. | ||
| + | <font size="2">([http://www.sci.muni.cz/CPR/ ABSTRACT]) | ||
| + | |||
| + | ---- Hradecká, L., Vodrážka, R., Nývlt, D., 2011. [http://www.sci.muni.cz/CPR/ Foraminifera from the Upper Cretaceous of northern James Ross Island (Antarctica): a preliminary report]. Czech Polar Reports 1 (2), 88-95. | ||
| + | |||
| + | |||
| + | ==TAXONOMIC REVISION AND EVOLUTIONARY CLASSIFICATION OF PRAEGLOBOTRUNCANIDS== | ||
| + | |||
| + | [[Image:RevistaEspanola_Cover.jpeg|left|80px| ]]<font size="2"> | ||
| + | The praeglobotruncanid test appearance was iteratively developed in three genera/directional lineages during the late Albian-Santonian. A new genus/directional lineage, ''Bermudeziana'', and a new species, ''Fingeria praeglobotruncaniformis'' are described. A new system of species types is developed for the evolutionary classification, as a tool to describe the morphological changes within a lineage and compare the developments in lineages in which certain features were achieved independently | ||
| + | <font size="2">([http://www.igme.es/internet/Serv_Publicaciones/Productos.asp?Tema=4&Familia=1&TextoEspecial=Periodica:Micropaleontologia ABSTRACT]) | ||
| + | |||
| + | ---- Georgescu, M.D., 2011. [http://www.igme.es/internet/Serv_Publicaciones/Productos.asp?Tema=4&Familia=1&TextoEspecial=Periodica:Micropaleontologia Iterative evolution, taxonomic revision and evolutionary classification of the praeglobotruncanid planktic foraminifera, Cretaceous (late Albian-Santonian)]. Revista Española de Micropaleontología 43 (3), 173-207. | ||
| + | |||
| + | |||
| + | == WALL ULTRASTRUCTURE AND TAXONOMIC POSITION OF THE GENUS ''Strictocostella'' == | ||
| + | |||
| + | [[Image:Micropaleontology_front.jpg|left|80px| ]]<font size="2"> | ||
| + | The details of the shell wall ultrastructure of ''Strictocostella matanzana'' (Palmer and Bermudez) 1936 and ''Strictocostella matanzana'' (Palmer and Bermudez) 1936 ''perytae'' subsp. nov. are investigated for the first time. This study shows that the calcareous shell wall of these two subspecies is monolamellar, consisting of one layer of crystals aligned in a radial direction. This fact necessitates changing the taxonomic position of the genus from the class Rotaliata which is characterized by a bilamellar shell wall to the class Nodosariata whose representatives have a monolamellar shell wall. Some other unique details of the shell and wall structure of the two subspecies studied are also described. The suborder Stilostomellina Saidova 1981 is reinstated and its rank is elevated to that of order. | ||
| + | <font size="2">([http://www.micropress.org/micro_journal.html ABSTRACT]) | ||
| + | |||
| + | ---- Mikhalevich, A.-V., 2011. [http://www.micropress.org/micro_journal.html Test wall ultrastructure and taxonomic position of the foraminiferal genus ''Strictocostella'' Patterson 1987]. Micropaleontology 57 (6), 543--555. | ||
| Line 337: | Line 363: | ||
<font size="4"> | <font size="4"> | ||
| − | + | {{Recent Publications on Foraminifera Navigation}}<font size="2"> | |
[[category:recent publications]] | [[category:recent publications]] | ||
