Early cretaceous flora from Vale Painho (Lusitanian basin, western Portugal): An integrated palynological and mesofossil study

Several mesofossil floras discovered in the Early Cretaceous rocks from the Lusitanian Basin of western Portugal comprise numerous well-preserved conifer remains. Here we report the occurrence of four conifer types in the mesofossil flora from the Catefi ca locality, about 4 km south of Torres Vedras in the Estremadura region on the western Portuguese Basin. The specimens were recovered from rocks belonging to the Almargem Formation, interpreted to be of late Aptian - early Albian age. It includes three Cheirolepidiaceae genera Frenelopsis SCHENK, Pseudofrenelopsis NATH. and Watsoniocladus V.SRINIV., and one conifer twig of Pagiophyllum-type. These conifers, which co-occurred in the same depositional bed with a well-diversified early angiosperm assemblage including flowers, seeds, fruits and dispersed stamens with pollen in situ, provide new insights into Early Cretaceous palaeoecology.

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Callialastrobus sousai gen. et sp. nov., a new araucariaceous pollen cone from the Early Cretaceous of Catefica (Lusitanian Basin, western Portugal) bearing Callialasporites and Araucariacites pollen

Review of Palaeobotany and Palynology ◽

10.1016/j.revpalbo.2020.104313 ◽

2020 ◽

Vol 283 ◽

pp. 104313

Author(s):

Jiří Kvaček ◽

Mário Miguel Mendes

Keyword(s):

Early Cretaceous ◽

Pollen Cone ◽

Lusitanian Basin

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Lusitanisuchus, a new generic name for Lisboasaurus mitracostatus (Crocodylomorpha: Mesoeucrocodylia), with a description of new remains from the Upper Jurassic (Kimmeridgian) and Lower Cretaceous (Berriasian) of Portugal

Canadian Journal of Earth Sciences ◽

10.1139/e04-059 ◽

2004 ◽

Vol 41 (10) ◽

pp. 1259-1271 ◽

Cited By ~ 10

Author(s):

Daniela Schwarz ◽

Regina Fechner

Keyword(s):

Early Cretaceous ◽

Lower Cretaceous ◽

Upper Jurassic ◽

Skull Reconstruction ◽

First Time ◽

Lusitanian Basin

Lusitanisuchus mitracostatus is a small mesoeucrocodilian crocodylomorph from the Upper Jurassic (Kimmeridgian) of GuimarotaLeiria in Portugal, which was originally described as an anguimorph lizard (Lisboasaurus mitracostatus Seiffert, 1970) based on jaw fragments and isolated teeth. A recent reexamination of the crocodylomorph material of Guimarota yielded new skull and dentary remains assignable to Lusitanisuchus mitracostatus. The new skull material not only enables for the first time a skull reconstruction of this taxon, but also leads to renaming and reclassifying Lisboasaurus mitracostatus. Teeth of Lusitanisuchus are also reported from the locality Porto DinheiroLourinhã, Early Cretaceous (Berriasian) of Portugal. The presence of this crocodylomorph taxon in two Portuguese localities suggests its occurence in the Lusitanian Basin during the Kimmeridgian to the Berriasian.

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