La Anita (Titanosaur tibia site) (Cretaceous of Argentina)

Also known as Estancia "Anita" locality 2, KOOKNE GPS

Where: Santa Cruz, Argentina (50.5° S, 72.5° W: paleocoordinates 52.5° S, 62.4° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Chorrillo Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• lower third of the Chorrillo Formation

•The age of this locality has been revised in Moyano-Paz et al., 2022.

•The Chorrillo Formation in Argentina is correlated to the nearby and coeval Dorotea Formation in Chile.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; gray, green claystone

• "grey and greenish grey clays, with dark and purple bands alternating with generally friable beds."

Size class: macrofossils

Collected in 2019

• discovered by General F. Nullo

Primary reference: F. E. Novas, F. L. Agnolin, S. Rozadilla, A. M. Aranciaga-Rolando, F. Brisson-Egli, M. J. Motta, M. Cerroni, M. D. Ezcurra, A. G. Martinelli, J. S. D’Angelo, and G. Alvarez-Herrera. 2019. Paleontological discoveries in the Chorrillo Formation (upper Campanian-lower Maastrichtian, Upper Cretaceous), Santa Cruz Province, Patagonia, Argentina. Revista del Museo Argentino de Ciencias Naturales, Nueva Serie 21(2):217-293 [P. Mannion/P. Mannion/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 206967: authorized by Philip Mannion, entered by Philip Mannion on 10.12.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Testudines - Chelidae
Chelidae indet.
Chelidae indet. sideneck turtle
MPM 21520, two peripheral and one costal plates
 Squamata - Madtsoiidae
cf. Rionegrophis madtsoioides
cf. Rionegrophis madtsoioides Albino 1986 snake
MPM 21523, partial vertebra
  - Fusioolithidae
Fusioolithus sp.
Fusioolithus sp. Fernández and Khosla 2015 dinosaur
MPM 21544, eggshells
Aves
 Ornithurae -
Kookne yeutensis n. gen. n. sp.
Kookne yeutensis n. gen. n. sp. Novas et al. 2019 bird
MPM 21550 (holotype), incomplete right cora¬coid lacking sternal end and proximal end damaged
Reptilia
 Saurischia -
Nullotitan glaciaris
Nullotitan glaciaris Novas et al. 2019 sauropod
MPM 21548 (left tibia) and MPM 21549 (caudal centrum)
Actinopteri
 Amiiformes - Amiidae
cf. Vidalamiinae indet.
cf. Vidalamiinae indet. Grande and Bemis 1998 bowfin
MPM 21517, isolated tooth