The foraminiferal assemblage is poorly preserved and consists of index fossils useful for precise biochronology and interpretation of the depositional environment. A total of ten benthic and six planktic foraminiferal species are described. Six species belong to the genus Uvigerina , four to Ammonia ...
This parallels the increasing dominance of Gs. ruber and N. dutertrei (Fig. 2). On the Eucla sector, however, the temperate index species Gr. inflata dominates the planktonic fauna (Fig. 3). Further to the east, on the Lincoln and Lacepede shelves, Gs. trilobus, Gr. menardii and ...
of 35: consistency index is 0.800; retention index is 0.741; and rescaled consistency index is 0.593. The strict consensus tree of the 24 most parsimonious trees results in a polytomy of all in-group taxa. Then, the characters were weighted by their rescaled consistency index, and were ...
//www.~eoiottrnals.cn/dzxben/ch/index.aspx http://mc.manuscriptcentra1.com/ags . outcrop arenot in the originalgrowth direction.Very Segment B contains parallel bedding and is often.htecalyxisupsidedown. characterizedbysandstonewithmedium-coraseandfine Amongthecollectedcoralfossils,multiplespecies...
The Saccocoma -calciturbidites indicate a distinct shift in conditions of sedimentation resulting from over-regional changes and, despite the lack of index fossils, seem to represent a local lithostratigraphic horizon. These sediments probably mark a sedimentation event which caused a minor levelling ...
A growing number of studies show that spinicaudatans are some of the most common fossils in continental strata and can be used as index fossils for continental stratigraphic division and correlation. Here we document the morphology and biostratigraphic significance of Euestheria gutta based on well...
Abundant and varied trilobite trace fossils are recognized and described in the Cambrian sequence of the Holy Cross Mountains. Cruziana and Rusophycus are stratigraphically significant and some of the described traces may be used as local index fossils. The first recognition of the Cruziana barbata ...
This unit consists primarily of sand-rich turbidites that appear to be barren of body fossils. The shales, however, contain trace fossil assemblages dominated by the ichnogenus Oldhamia and also include Planolites, Gordia, and other indistinguishable simple forms. Oldhamia is considered as an ...
Myopsolenites boutiouiti Geyer and Landing, 2004 is now regarded as a junior synonym of Myopsolenites altus (Linan and Gozalo, 1986). A detailed discussion of the correlation with a focus on global aspects provides clues for the utility of potential index fossils for the global Cambrian ...
The ubiquitous distribution of and within the slope facies and their Frasnian to early Famennian stratigraphic range limit their use as index fossils to generalized paleogeographic and stratigraphic problems.CORBO, SalvatoreFossil Behavior in Honor of Adolf Seilacher...