Norte de Cerro Bayo 2 (Cretaceous of Argentina)

Also known as North Cerro Bayo 2

Where: Chubut, Argentina (43.0° S, 67.6° W: paleocoordinates 45.2° S, 56.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: La Colonia Formation, Maastrichtian (72.1 - 66.0 Ma)

• Middle facies association of the La Colonia Formation

•

•La Colonia Fm = Maastrichtian (Clyde et al. 2021)

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; mudstone

• Represents deposition in an estuarine environment or tidal flat, influenced by occasional high freshwater streamflows from the continent and tidal currents from the sea. This facies association was deposited under a seasonal climate with alternating periods of humidity and aridity.
• Composed mostly of laminated mudstones, pelitic fine sandstones, and banded siltstones and claystones.

Size class: macrofossils

Collected by Z. Gasparini in 2011

Collection methods: bulk,

Primary reference: P. Muzzopappa and J. A. Varela. 2014. Evidence of anuran diversity in the La Colonia Formation (Upper Cretaceous), Chubut, Patagonia, Argentina. XXVIII Jornadas Argentina de Paleontología de Vertebrados. Resúmenes. Ameghiniana 51(6 (suppl.)):18 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166583: authorized by Philip Mannion, entered by Jonathan Tennant on 19.02.2015, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Amphibia
 Salientia -
Neobatrachia "indet. 1", Neobatrachia "indet. 2", Neobatrachia "indet. 3"
Neobatrachia "indet. 1" Reig 1958 frog
MPEF-PV 10890-8
Neobatrachia "indet. 2" Reig 1958 frog
MPEF-PV 10890-9
Neobatrachia "indet. 3" Reig 1958 frog
MPEF-PV 10890-10
Reptilia
 Testudines - Chelidae
Chelidae indet.
Chelidae indet. Gray 1825 sideneck turtle
MPEF-PV 10570 and 10830
 Testudinata -
Patagoniaemys gasparinae
Patagoniaemys gasparinae Sterli and de la Fuente 2011 turtle
MPEF-PV 10541-10543; 10545; 10548-10550; 10552-10554
 Ornithischia -
Hadrosauroidea indet., Ankylosauria indet.
Hadrosauroidea indet. Huene 1954 ornithopod
MPEF-PV 10872 and 10873, vertebral fragments; MPEF-PV 10875, metatarsal fragment
Ankylosauria indet. Osborn 1923 ankylosaur
MPEF-PV 10871, osteoderm
 Saurischia -
Titanosauria indet.
Titanosauria indet. Bonaparte and Coria 1993 sauropod
MPEF-PV 10827 and MPEF-PV 10828, two fragmentary caudal vertebrae
 Theropoda -
Theropoda indet.
Theropoda indet. Marsh 1881 theropod
MPEF-PV 10829, metatarsal fragments of a single individual