Calpionellites is an extinct genus of single celled eukaryotes.[1] Their fossils are found in rocks dating to the Valanginian stage of the Early Cretaceous.
Calpionellites is an extinct genus of single celled eukaryotes. Their fossils are found in rocks dating to the Valanginian stage of the Early Cretaceous...
Calpionellites darderi is an extinct planktonic eukaryote and an important index fossil for the Lower Cretaceous stratigraphy. The first appearance of...
Valanginian, which is fixed at the first appearance of calpionellid species Calpionellites darderi. This is just a little below the first appearance of the ammonite...
the Valanginian is at the first appearance of calpionellid species Calpionellites darderi in the stratigraphic column. A global reference section (a GSSP)...
Cañada Luenga, Betic Cordillera, Spain Biologic: First appearance of Calpionellites darderi (Calpionellid). Biologic: First appearance of Thurmanniceras...
Calpionellidae appear later, including widespread genera such as Calpionella and Calpionellites, and have combined microgranular and hyaline lorica. A third family...
Cañada Luenga, Betic Cordillera, Spain Biologic: First appearance of Calpionellites darderi (Calpionellid). Biologic: First appearance of Thurmanniceras...
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