RETRACTED: Pattern and timing of the Early Jurassic calcareous nannofossil crisis

This version of the article has been retracted following discussion with the two newly added co-authors (SG, AB), who felt that the some of the material and discussion in the original manuscript was included without their agreement. The addition of these two new contributing co-authors to a revised version of this manuscript has resulted in modifications, especially in section 5.4, to remove potentially unclear text and citation errors. The revised version of the complete paper has been published in Volume 427, pages 100-108 of Palaeogeography, Palaeoclimatology, Palaeoecology (http://dx.doi.org/10.1016/j.palaeo.2015.03.024). Although the main conclusions remain the same, the new version with three authors is more consistent with the scientific contribution of each author. We apologize to the scientific community and the readers of the journal for any inconvenience that it might have caused.