Stephania psittaca Jud et Gandolfo in Jud, Iglesias, Wilf & Gandolfo

Plant Fossil Names Registry Number: PFN001750


Authors: N. A. Jud & M. A. Gandolfo

Rank: species

Reference: Jud, N. A., Iglesias, A., Wilf, P. & Gandolfo, M. A. (2018): Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina). – American Journal of Botany 105(5): 927–942.

Page of description: 930

Illustrations or figures: fig. 2A–D


Original diagnosis/description

Endocarp obovate in lateral view; dorsal crest broad-rounded, of uniform thickness, lacking spines; locule cast hippocrepiform (horseshoe-shaped), with unequal limbs and conspicuous radially aligned intrusive ribs; lateral face concave, imperforate; vascular trace ventral, nearly straight.


The specific epithet is derived from psittacus (Latin, parrot), in reference to the type locality name “Palacio de los Loros,” which comes from the abundance of burrowing parrots (Cyanoliseus patagonus) living in the cliffs of a palace-like local butte.


Paleogene, Paleocene, Danian
early Danian (early Paleocene), Salamanca Formation, Chron C28n (64.67–63.49 Ma)


Palacio de los Loros-2 (PL-2), Chubut Province

Plant fossil remain

macro- and meso-fossils-embryophytes except wood