The Molí del Baró-1 site, a diverse fossil assemblage from the uppermost Maastrichtian of the southern Pyrenees (north-eastern Iberia)

Josep Marmi, Alejandro Blanco, Víctor Fondevilla, Fabio Marco Dalla Vecchia, Albert G. Sellés, Alba Vicente, Carles Martín-Closas, Oriol Oms, Àngel Galobart

Research output: Contribution to journalArticleResearchpeer-review

20 Citations (Scopus)

Abstract

© 2015 Elsevier Ltd. The Molí del Baró-1 site (north-eastern Iberia) has yielded one of the richest fossil assemblages of the continental upper Maastrichtian from western Europe. It includes abundant plant (charophytes, sporomorphs, angiosperm leaves, seeds and logs), invertebrate (mollusc shells, partial insect exoskeletons and eggs) and vertebrate (teeth, bones, eggshells) fossils. The fossil assemblage is composed of both parautochthonous and allochthonous remains that mostly deposited in a pool formed at the edge of a meandering river. Plant megafossil evidence suggest that at least three angiosperm species (a willow-like dicot, palms and a likely typhacean monocot) formed the plant community growing in this fluvial environment. Tooth remains indicate that crocodylomorphs were diverse (including atoposaurids, ziphosuchians and eusuchians) which together with small theropod dinosaurs likely consumed prey carcasses or scavenged near the depositional setting. Prismatoolithid eggshells also suggest the presence of nearby nesting area of theropods. On the other hand, hadrosauroids apparently dominated phytophagous faunas including lambeosaurines as well as more basal forms. The taxonomic composition of the Molí del Baró-1 site matches the expected for the timespan and environment and represents a relevant locality to know the diversity of the latest Cretaceous terrestrial ecosystems in south western Europe.
Original languageEnglish
Pages (from-to)519-539
JournalCretaceous Research
Volume57
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • Angiosperms
  • Crocodylomorphs
  • Fluvial environment
  • Hadrosauroids
  • Molí del Baró-1
  • Theropods
  • Tremp Formation
  • Upper Maastrichtian

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