A new species of Scoresbya Harris and Sonoraphyllum gen. nov. (Plantae incertae sedis) from the Late Triassic of Sonora, Mexico

Abstract

Scoresbya dentata Harris, Scoresbya pinnata sp. nov. and Sonoraphyllum mirabile gen. et sp. nov. are described from the Carnian (and/or Norian?) Santa Clara Formation, Barranca Group, southeastern central Sonora, northwestern Mexico. The original generic diagnosis of Scoresbya, based on Sc. dentata, is modified due to the recent discovery of Sc. integrifolia Meng Fan-son and Sc. pinnata, whose leaves have entire-margined or pinnate segments and lobes, respectively… in order to continue, download the full paper in PDF.