 | Cretaceous Albian 113.0 ± 1.0 100.5 ± 0.9 base: first occurrence of Praediscosphaera columnata Aube, France Aptian 121.4 113.0 ± 1.0 base: magnetic anomaly... 91 KB (9,487 words) - 16:56, 16 April 2024 |
 | the Albian) is at the first appearance of coccolithophore species Praediscosphaera columnata in the stratigraphic record.[citation needed] In the Tethys... 10 KB (821 words) - 20:34, 28 February 2024 |