Journal Article

PHPPUBDB-26615

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Filling the gaps of dinosaur eggshell phylogeny: Late Jurassic Theropod clutch with embryos from Portugal

Araújo, R. ; Castanhinha, R. ; Martins, R. M. S. ; Mateus, O. ; Hendrickx, C. ; Beckmann, F. ; Schell, N. ; Alves, L. C. ; DESY

2013
Nature Publishing Group London

This record in other databases:        

Please use a persistent id in citations: doi:10.1038/srep01924

Abstract: The non-avian saurischians that have associated eggshells and embryos are represented only by the sauropodomorph Massospondylus and Coelurosauria (derived theropods), thus missing the basal theropod representatives. We report a dinosaur clutch containing several crushed eggs and embryonic material ascribed to the megalosaurid theropod Torvosaurus. It represents the first associated eggshells and embryos of megalosauroids, thus filling an important phylogenetic gap between two distantly related groups of saurischians. These fossils represent the only unequivocal basal theropod embryos found to date. The assemblage was found in early Tithonian fluvial overbank deposits of the Lourinhã Formation in West Portugal. The morphological, microstructural and chemical characterization results of the eggshell fragments indicate very mild diagenesis. Furthermore, these fossils allow unambiguous association of basal theropod osteology with a specific and unique new eggshell morphology.

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Contributing Institute(s):

1. Zentrum für Material- und Küstenforschung (HZG)
2. Experiments with synchrotron radiation (HASYLAB(-2012))

Research Program(s):

1. PETRA Beamline P07 (POF2-54G14) (POF2-54G14)
2. DORIS Beamline W2 (POF2-54G13) (POF2-54G13)
3. FS-Proposal: I-20110184 EC (I-20110184-EC) (I-20110184-EC)
4. FS-Proposal: I-20110229 EC (I-20110229-EC) (I-20110229-EC)

Experiment(s):

1. DORIS Beamline W2 (DORIS III)
2. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2013

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Database coverage:
; ; ; ; BIOSIS Previews ; JCR ; NCBI Molecular Biology Database ; No Author Disambiguation ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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