A new insect trackway from the Upper Jurassic-Lower Cretaceous eolian sandstones of Sao Paulo State, Brazil: implications for reconstructing desert paleoecology.

ABSTRACT: The new ichnospecies Paleohelcura araraquarensis isp. nov. is described from the Upper Jurassic-Lower Cretaceous Botucatu Formation of Brazil. This formation records a gigantic eolian sand sea (erg), formed under an arid climate in the south-central part of Gondwana. This trackway is composed of two track rows, whose internal width is less than one-quarter of the external width, with alternating to staggered series, consisting of three elliptical tracks that can vary from slightly elongated to tapered or circular. The trackways were found in yellowish/reddish sandstone in a quarry in the Araraquara municipality, São Paulo State. Comparisons with neoichnological studies and morphological inferences indicate that the producer of Paleohelcura araraquarensis isp. nov. was

SUBMITTER: Peixoto BCPEM 

PROVIDER: S-EPMC7252435 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature