Barranc de Torrebilles-1 (Cretaceous of Spain)

Also known as Isona i Conca Dellà, TB1

Where: Cataluña, Spain (42.2° N, 1.0° W: paleocoordinates 34.3° N, 1.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Conques Formation (Tremp Group), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• Uppermost lower red unit of the Tremp Formation, only 35m beneath the Vallcebre Limestones and laterally equivalent strata unit

•The Conques Formation is equivalent to the "lower Red Garumen" facies. The Conques Formation was previously assigned a late maastrichtian age (Sellés and Villa 2015; Villa et al. 2015) Biostratigraphy and Sr stable isotope geochemistry suggest that the La Posa and Conques Formation are entirely early Maastrichtian, lying within chron C31r (see Caus et al. 2016; Oms et al. 2016; Fondevilla et al. 2016; Fondevilla et al. 2019).

• bed-level stratigraphic resolution

Environment/lithology: fluvial; fine-grained, brown sandstone

• Fluvial, meandering river environment
• Fine-grained brownish sandstone body; red and purple mottling.

•It is interbedded with reddish siltstones, medium- and coarse-grained sandstones and microconglomerates.

Size class: macrofossils

Preservation: trace

Collected in 2008-2009

Primary reference: J. Marmi, A. H. Luján, V. Riera, R. Gaete, and O. Oms Galobart. 2012. The youngest species of Polysternon: A new bothremydid turtle from the uppermost Maastrichtian of the southern Pyrenees. Cretaceous Research 35:133-142 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132488: authorized by Philip Mannion, entered by Philip Mannion on 20.08.2012, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Reptilia
 Testudines - Bothremydidae
Polysternon isonae n. sp. Marmi et al. 2012 sideneck turtle
MCD-5094 - type (anterior half of a plastron, nuchal, left peripheral 1, left peripheral 3 and a fragment of carapace with partial left costal 1 and neurals 1 and 2); MCD-5095 - paratype (incomplete articulated shell); isolated plates; MNI = 3
 Ornithischia -
Hadrosauroidea indet. Huene 1954 ornithopod
TB1-01, 02
 Life -