Albertiana Research Article:Deşli Caira (Romania) Olenekian-Anisian Boundary section: Revised stratigraphy and new findings

Abstract – We provide an update on the ongoing investigation of the Deşli Caira section, Dobrogea, Romania, a candidate section for the Anisian stage GSSP. We report on a discussion about a fault in the section, which resulted in a comment in a different paper, and demonstrate that the fault is present, cutting the section almost perpendicular and continuing from the lower part to the top of the section. However, as long as the fault’s position is recognized, it does not affect research in the section, because there is sufficient room to work on both sides; nevertheless, we recommend that all work be conducted on the same (left) side of the fault throughout the section just to rule out any potential mistakes, even though, when taking it into account accordingly, one can move from one side of the fault to the other without problems. Furthermore, we suspect the occurrence of Pseudacrochordiceras, that in Nevada is limited to the uppermost part of the Neopopanoceras haugi ammonoid zone, just below the boundary with the overlying Courtilloticeras stevensi ammonoid zone are present in the Deşli Caira section. If confirmed, this would enable long-range correlation with data from Nevada (USA) and thus, the Panthalassa realm.