 | morphological features of modern Isoetes. More primitive forms such as Nathorstiana, which retain an elongated stem, persisted into the Early Cretaceous... 228 KB (24,670 words) - 18:46, 18 April 2024 |
doubingeri †Protohaploxypinus †Pseudofrenelopsis †Pseudofrenelopsis nathorstiana – type locality for species †Pseudofrenelopsis parceramosa †Pteridocaulis... 70 KB (2,436 words) - 20:49, 16 January 2024 |