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New information on ornithopod dinosaurs from the Late Jurassic of Portugal

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Rotatori F. M., Moreno-Azanza M., Mateus O.

Acta Palaeontologica Polonica

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2020

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tom 65

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nr 1

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

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Moreno-Azanza M., Canudo J. I., Gasca J. M.

Acta Palaeontologica Polonica

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2014

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tom 59

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nr 4

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.

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New dryolestidan mammal from the Hauterivian–Barremian transition of the Iberian Peninsula

88%

Cuenca−Bescos G., Badiola A., Canudo J. I., Gasca J. M., Moreno-Azanza M.

Acta Palaeontologica Polonica

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2011

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tom 56

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nr 2

Crusafontia amoae sp. nov. (Dryolestida, Stem Cladotheria) is represented by two isolated upper molars (M4 or M5 and M6 or M7) from the terminal Hauterivian–basal Barremian (Early Cretaceous) of the El Castellar Formation (Galve, Spain). The molars have a deep ectoflexus, a distinct metacone, a continuous metacrista, and an antero−lingually placed paracone. They differ from the molars of the other species of the genus, Crusafontia cuencana, by their larger size, by their outsized parastyle, by the pointed lingual slope of the paracone, their more symmetrical appearance with a deep ectoflexus in occlusal view, and the well−developed metacone. Revision of three isolated teeth previously attributed to Crusafontia cuencana suggests that instead of being upper premolars belonging to Crusafontia cuencana they in fact belong to Pocamus pepelui, of the stem cladotherian superorder Zatheria, probably “peramuran”. As such, the stem Cladotheria record from the Early Cretaceous of the Iberian Peninsula is composed of two dryolestids (Crusafontia amoae and Crusafontia cuencana) and one zatherian (Pocamus pepelui).

Ograniczanie wyników

3 Acta Palaeontologica Polonica

3 Moreno-Azanza M.

2 Canudo J. I.

2 Gasca J. M.

1 Badiola A.

1 Cuenca−Bescos G.

1 Mateus O.

1 Rotatori F. M.

1 2020

1 2014

1 2011

New information on ornithopod dinosaurs from the Late Jurassic of Portugal

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

New dryolestidan mammal from the Hauterivian–Barremian transition of the Iberian Peninsula