Sarzetti, L. C.; Labandeira, Conrad C.; Genise, J. F.
(2008)
The ichnospecies Phagophytichnus pseudocircus isp. nov. is described to include trace fossils characterized by leaf-margin excisions showing eccentricity values of 0.35-0.65 and more than 270 degrees of an arc, a non cuspate ...