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2014 | 59 | 4 |
Tytuł artykułu

Unusual theropod eggshells from the Early Cretaceous Blesa Formation of the Iberian Range, Spain

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Trigonoolithus amoae oogen. et oosp. nov. is described on the basis of abundant eggshell fragments from the La Cantalera 1 site in the Early Cretaceous (early Barremian) Blesa Formation, Teruel Province, northern Spain. The surface ornamentation, the most diagnostic feature of the new oogenus, consists of closely spaced sub-triangular or rounded protuberances that have not previously been reported in any other ootaxon. The eggshells present three distinct layers, with a gradual transition between prismatic and mammillary layers, and a poorly developed external layer with progressive prismatic to external layer transition, a combination of characters that allows them to be assigned to Prismatoolithidae. Phylogenetic analyses based on oological characters place Trigonoolithus at the base of Prismatoolithidae.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
59
Numer
4
Opis fizyczny
p.843-854,fig.,ref.
Twórcy
  • Grupo Aragosaurus-IUCA, Area de Paleontología, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
autor
  • Grupo Aragosaurus-IUCA, Area de Paleontología, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
autor
  • Grupo Aragosaurus-IUCA, Area de Paleontología, Facultad de Ciencias, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-a20c8f1d-d54b-4c01-bc38-bd39e71461ab
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