La Anita (Puma cave site) (Cretaceous of Argentina)

Also known as Estancia "Anita" locality 4, DUPLICATE of Magallanodon Site in Moyano-Paz et al., CHIQUITAJE MAMIF GPS

Where: Santa Cruz, Argentina (50.5° S, 72.6° 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• coordinate based on unpublished field data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)

• middle 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 206969: authorized by Philip Mannion, entered by Philip Mannion on 10.12.2019, edited by Evangelos Vlachos, Franco Aspromonte and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Potamolithus sp.
MPM 21557, fragmentary casts
Stenophysa sp.
MPM 215599, incomplete casts
? Subulininae indet.
MPM 21560 and 21561, two fragmentary casts and shells
Gastropoda
 Stylommatophora - Urocoptidae
Holospira sp. Martens 1860 slug
MPM 21562, fragmen¬tary cast
 Stylommatophora - Bulimulidae
Bulimulidae indet. Tryon 1867 slug
MPM 21563 and 21564, five fragmentary casts
 Heterostropha - Physidae
Physa sp. Draparnaud 1801 snail
MPM 21558, incomplete cast
 Architaenioglossa - Ampullariidae
Pomacea sp. Perry 1811 apple snail
MPM 21554, four fragmentary casts
 Cerithioidea - Pleuroceridae
Pleuroceridae indet. Thiele 1929 snail
MPM 21555 and 21556, two fragmentary casts
Reptilia
 Saurischia -
Titanosauria indet. Bonaparte and Coria 1993 sauropod
MPM 21542, two teeth; MPM-PV-22863, two teeth
  - Fusioolithidae
Fusioolithus sp. Fernández and Khosla 2015 dinosaur
MPM 21543, eggshells
  - Prismatoolithidae
Prismatoolithidae indet. Hirsch 1994 dinosaur
MPM 21551, eggshells
Aves
 Enantiornithes -
Enantiornithes indet.5 bird
MPM-PV-22867-22868, isolated ungual pedal phalanges
Reptilia
 Theropoda - Noasauridae
Noasauridae indet. Bonaparte and Powell 1980 ceratosaur
MPM 21547, right pedal phalanx
 Theropoda - Unenlagiidae
Unenlagiidae indet. Bonaparte 1999 theropod
MPM 21548 and 21549
? Unenlagiidae indet.1 Bonaparte 1999 theropod
MPM 21546, dorsal centrum
 Testudines - Chelidae
Chelidae indet. sideneck turtle
MPM 21521, plates
Hydromedusinae indet.5 Baur 1893 sideneck turtle
MPM-PV-22849-22856
 Squamata -
Serpentes indet. Linnaeus 1758 snake
MPM 21522, posterior vertebra
Anilioidea indet.5 snake
MPM-PV-22847, possible mid-precloacal vertebra
 Squamata - Madtsoiidae
cf. Rionegrophis sp.5 Albino 1986 snake
MPM-PV-22848, centrum of trunk vertebra
Mammalia
 Mammalia -
Mammalia indet. mammal
MPM 21552 and 21553
 Theriamorpha -
Patagomaia chainko n. gen. n. sp.2
Patagomaia chainko n. gen. n. sp.2 Chimento et al. 2024 mammal
MPM-PV-23365 (holotype), MPM-PV-23366
 Monotremata -
Patagorhynchus pascuali n. gen. n. sp.3
Patagorhynchus pascuali n. gen. n. sp.3 Chimento et al. 2023 monotreme
MPM-PV-23087 - holotype
 Allotheria -
Magallanodon baikashkenke4 Goin et al. 2020 mammal
MPM 21572, first upper molariform
Amphibia
 Salientia -
Anura indet. Fischer von Waldheim 1813 frog
MPM 21518, tibio¬fibula
 Salientia - Calyptocephalellidae
Calyptocephalellidae indet. Reig 1960 frog
MPM 21519, distal end of right humerus
Calyptocephalella sp.5 Strand 1926 helmeted water toad
MPM-PV-22841, incomplete left maxilla; MPM-PV-22842, incomplete right maxilla; MPM-PV-22843, incomplete right ilium; MPM-PV22844, proximal right radioulna; MPM-PV-22845, left proximal end of tibiofibula; MPM-PV-22846, proximal half of urostyle
 Salientia - Pipidae
Kuruleufenia sp.6 Gómez 2016 clawed frog
MPM-PV-22840, distal end of right humerus
Actinopteri
 Teleostei -
Teleostei indet. Müller 1846
MPM 21516, tooth crowns