Zoological Studies

Vol. 59, 2020

(update: 2020.07.07; 08.05)

In memory of Chinese geo-paleontologist master Prof. Dr. Chen Pei-Ji (1936 – 2019)

Special Issue: Fossil and Modern Clam Shrimp (Branchiopoda: Spinicaudata, Laevicaudata)

Revision of Two Spinicaudatan Species from the Cañadón Asfalto Formation (Jurassic), Patagonia Argentina

Mateo D. Monferran1,*, Oscar F. Gallego1, and Nora G. Cabaleri2


11Centro de Ecología Aplicada del Litoral - CONICET-UNNE and Dpto. Biología – Área Ciencias de la Tierra - FaCENA-UNNE, Ruta Prov. N° 5, Km. 2.5, 3400, Corrientes, Argentina. *Correspondence: E-mail: monfdm@gmail.com (Monferran)
E-mail: ofgallego@live.com.ar (Gallego)
2Instituto de Geocronología y Geología Isotópica, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina. E-mail: cabaleri@ingeis.uba.ar (Cabaleri)

(Received 6 August 2019 / Accepted 1 October 2019)
Special issue (articles 32-46) communicated by Thomas A. Hegna and D. Christopher Rogers

Re-examination under a scanning electron microscope (SEM) of the type material of the species described by Tasch and Volkheimer (1970) and Vallati (1986) was applied, as well as, new materials collected from different localities of the Las Chacritas Member from Cañadón Asfalto Formation (Argentina). Morphological description and new SEM images of the ornamentation pattern revealed features on carapaces that had not been recognized previously. These species are now referred to the family Eosestheriidae as Carapacestheria taschi (Vallati, 1986) and to the family Fushunograptidae as Wolfestheria patagoniensis (Tasch, in Tasch and Volkheimer, 1970). These records increase our knowledge about the Jurassic faunas from Argentina.

Key words: Conchostraca, Branchiopods, South America.

Citation: Monferran MD, Gallego OF, Cabaleri NG. 2020. Revision of two spinicaudatan species from the Cañadón Asfalto Formation (Jurassic), Patagonia Argentina. Zool Stud 59:37. doi:10.6620/ZS.2020.59-37.