Abstract A new araucariaceous pollen cone Callialastrobus sousai gen. et sp. nov. is described from the Early Cretaceous (late Aptian–early Albian) Catefica mesofossil flora in the Lusitanian Basin, Estremadura region, western Portugal. The material comprises a single dispersed pollen cone showing peltate deltoid microsporophylls arranged in a helix. Each microsporophyll bears three pollen sacs with Araucariacites and Callialasporites pollen-types in situ. Based on the overall morphology of the pollen cone, the presence of three pollen sacs per sporophyll and the occurrence of Araucariacites pollen grains, the new pollen cone is assigned to Araucariaceae. The new genus Callialastrobus is established here to accommodate araucariaceous pollen cones containing both Araucariacites and Callialasporites pollen-types in situ.

中文翻译：

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Callialastrobus sousai gen。等 sp. 11 月，一种来自 Catefica（葡萄牙西部卢西塔尼亚盆地）早白垩世的新南洋杉花粉锥，含有 Callialasporites 和 Araucariacites 花粉

摘要 一种新的南洋杉花粉锥 Callialastrobus sousai gen。等 sp. 十一月 来自葡萄牙西部埃斯特雷马杜拉地区卢西塔尼亚盆地的早白垩世（阿普特阶晚期 - 阿尔比阶早期）Catefica 中化石植物群。该材料包括单个分散的花粉锥，显示出呈螺旋状排列的盾状三角状小孢子叶。每个小孢子叶带有三个原位带有南洋杉和 Callialasporites 花粉类型的花粉囊。根据花粉锥的整体形态、每个孢子叶三个花粉囊的存在以及南洋杉花粉粒的出现，新的花粉锥被归为南洋杉科。在这里建立了新的 Callialastrobus 属，以容纳原位含有 Araucariacites 和 Callialasporites 花粉类型的南洋杉属花粉锥。