Re-appraisal of thylacocephalans (Euarthropoda, Thylacocephala) from the Jurassic La Voulte-sur-Rhône Lagerstätte
Author
Laville, Thomas
EDDB1B51-2017-405B-9A92-52EA900A13CA
Muséum national d’Histoire naturelle, Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), Sorbonne Université-MNHN-CNRS, 57 rue Cuvier, 75005 Paris, France. & Biogéosciences, UMR 6282 CNRS, Université de Bourgogne, 6 boulevard Gabriel, 2100 Dijon, France.
thomas.laville2@mnhn.fr
Author
Forel, Marie-Béatrice
063C1F7E-6D26-48F9-A8B1-2AFA496B5FB8
Muséum national d’Histoire naturelle, Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), Sorbonne Université-MNHN-CNRS, 57 rue Cuvier, 75005 Paris, France.
marie-beatrice.forel@mnhn.fr
Author
Charbonnier, Sylvain
2B4CC15F-FB7A-4AAF-8CB5-365E976850FA
Muséum national d’Histoire naturelle, Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), Sorbonne Université-MNHN-CNRS, 57 rue Cuvier, 75005 Paris, France.
sylvain.charbonnier@mnhn.fr
text
European Journal of Taxonomy
2023
2023-10-05
898
1
1
61
https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2295/9941
journal article
10.5852/ejt.2023.898.2295
2118-9773
8413500
87EE2C76-1DDC-40DE-87E7-4D0E11A312DC
Genus
Austriocaris
Glaessner, 1931
Type
species
Austriocaris carinata
Glaessner, 1931
by monotypy.
Original diagnosis
(
Rolfe 1969
)
Carapace only known, posterior excavation arcuate or irregular, anterior margin concave or produced into small beak; posteroventral or ventromedian V-shaped furrow; surface smooth with mid-dorsal granulations or posteroventral pits, or dorso-ventrally striate.
Emended diagnosis
Thylacocephala
with an optic notch occupying only the ventral part of the anterior margin, presence of a straight mid-dorsal line and a sharp postero-ventral corner.
Remarks
Rolfe (1969)
inversed the orientation of the shield of
Austriocaris
, the posterior being identified as the anterior. This influenced his diagnosis, with the optic notch being described as a posterior notch.