Credneria

Credneria
Temporal range: Cretaceous
Credneria triacuminata leaf
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Platanaceae
Genus: †Credneria
Zenker

Credneria is an extinct genus in the family or Platanaceae[1][2][3] of broad-leaf trees similar to extinct Platanus species that appeared during the Cretaceous. The genus was first described by Zenker (1833) and has formerly been placed in the family Salicaceae[4] rather than Platanaceae on occasion. Credneria leaves are preserved in sandstone and less often in siltstone. The leaves are typically obovate with a pinnate-actinodromous venation and distinct suprabasal veins.[5]

  1. ^ Thomas Denk & Maria V. Tekleva (2006). "Comparative pollen morphology and ultrastructure of Platanus: Implications for phylogeny and evaluation of the fossil record". Grana. 45:3 (3): 195–221. doi:10.1080/00173130600873901.
  2. ^ Collinson, Margaret E (1992). "The early fossil history of Salicaceae: a brief review". Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences. 98: 155–167. doi:10.1017/S0269727000007521.
  3. ^ Wang, H.; Dilcher, D. (2018). "Early Cretaceous angiosperm leaves from the Dakota Formation, Hoisington III locality, Kansas, USA". Palaeontologia Electronica. 21 (3). doi:10.26879/841.
  4. ^ "Credneria Zenker, 1833".
  5. ^ Georg F. Tschana; Thomas Denka; Maria von Balthazara (2008). "Credneria and Platanus (Platanaceae) from the Late Cretaceous (Santonian) of Quedlinburg, Germany". Review of Palaeobotany and Palynology. 152 (3–4): 211–236. doi:10.1016/j.revpalbo.2008.05.004.