near Batoví Quarry (Jurassic to of Uruguay)

Where: Tacuarembó, Uruguay (31.9° S, 56.0° W: paleocoordinates 29.2° S, 20.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Batoví Member (Tacuarembó Formation), Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; lithified, massive, fine-grained, yellow sandstone

• is indicative of an ephemeral river, characterized by episodes of higher and lower discharge.
• The rostral fragment described herein was found in a 2.5-m thick yellowish, fine grained sandstone. The sandstone starts with a basal horizon of pelitic intraclasts, and is massive, showing low-angle cross-bedding towards the top

Size class: macrofossils

• The pterosaur rostrum fragment was found spatially associated with etched ganoid scales and unidentified bone fragments in a patchy bonebed

Primary reference: D. Perea, M. Soto, P. Toriño, V. Mesa, and J. G. Maisey. 2018. A Late Jurassic-?earliest Cretaceous ctenochasmatid (Pterosauria, Pterodactyloidea): The first report of pterosaurs from Uruguay. Journal of South American Earth Sciences 85:298-306 [P. Mannion/G. Varnham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225433: authorized by Philip Mannion, entered by Grace Varnham on 09.05.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pterosauria - Ctenochasmatidae
Tacuadactylus luciae n. gen. n. sp.
Tacuadactylus luciae n. gen. n. sp. Soto and Montenegro 2021 ctenochasmatid
FC-DPV-2869, fragment from the anterior part of a max- illopremaxillary rostrum with 18 alveoli