Puesto Hernández locality, PH 1597 [MAU] (Cretaceous to of Argentina)

Also known as Petrobrasaurus type, Rincón de los Sauces

Where: Neuquén, Argentina (37.4° S, 69.1° W: paleocoordinates 42.2° S, 49.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Plottier Formation (Neuquén Group), Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 83.5 Ma)

• lower part of formation

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; medium-grained, coarse, quartzose sandstone and brown, sandy mudstone

• dense muddy flow; "fluvial deposits linked to sandy braided channel systems...The fossil-bearing levels comprise a 2.5 m thick fill channel deposits"
• "ruddy brown mudstones approximately three metres thick, characterized by a high sand content microconglomerate-sized heterometric detrital grains of a siliceous and carbonate nature"; "quarzolithic, coarse to medium-grained sandstones with develop of sets of planar cross-stratification and low angle cross-stratification"

Size class: macrofossils

Collected in 2006-2007

Collection methods: mechanical,

Primary reference: L. S. Filippi, J. I. Canudo, J. L. Salgado, A. Garrido, R. García, I. Cerda, and A. Otero. 2011. A new sauropod titanosaur from the Plottier Formation (Upper Cretaceous) of Patagonia (Argentina). Geologica Acta 9(1):1-12 [P. Mannion/P. Mannion/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117450: authorized by Philip Mannion, entered by Philip Mannion on 20.09.2011, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Plantae indet. Haeckel 1866
Small logs and plant debris
Reptilia
 Ornithischia -
Ornithopoda indet. Marsh 1881 ornithopod
MAU-Pv-PH-458, partial dorsal neural arch
 Theropoda -
Theropoda indet. theropod
5 isolated theropod tooth crowns, associated with the sauropod bones
 Saurischia -
Petrobrasaurus puestohernandezi n. gen. n. sp. Filippi et al. 2011 sauropod
Holotype: 2 isolated teeth (MAU-Pv-PH-449/1 and 22), posterior part of ?middle cervical vertebra (MAU-Pv-PH-449/37), 3 incomplete posterior dorsal vertebrae (MAU-Pv-PH-449/18, 19 and 26), incomplete posterior dorsal arch (MAU-Pv-PH-449/20), incomplete dorsal vertebral centrum (MAU-Pv-PH-449/27), incomplete first caudal centrum (MAU-Pv-PH-449/15), 5 anterior caudal vertebrae (MAU-Pv-PH-449/2, 3, 4, 5 and 6), R humerus (MAU-Pv-PH-449/36), R & L sternal plates (MAU-Pv-PH-449/10 and 25), 4 metacarpals (II, IV and V), one incomplete (MAU-Pv-PH-449/11, 12, 13 and 35), R & L femur (MAU-Pv-PH-449/7 and 8), L tibia lacking distal end (MAU-Pv-PH-449/9), distal end of R tibia (MAU-Pv- PH-449/17), distal fragment of iliac peduncle (MAU-Pv- PH-449/14), L pubis (MAU-Pv-PH-449/16), fragments of haemal arches (MAU-Pv-PH-449/29, 30, 31 and 32), dorsal ribs, fragments of cervical ribs and inde. remains.