Tag Archive for 'Keraphyton' | Sci.News

Keraphyton mawsoniae: (A) specimen before preparation; (B) general view of stem showing the 4 rib systems (Ia, Ib, IIa and IIb); (C) central segment and four fundamental ribs; (D) rib system Ib showing a short branch dividing into two equal ultimate ribs at right and a long branch producing at least three long ultimate ribs at left; (E) long branch of rib system IIa producing short ultimate ribs; (F) short branch of rib system IIa dividing into two ultimate ribs; (G) long branch of rib system IIb producing short ultimate ribs; (H) long branch of rib system Ia producing long, but broken, ultimate ribs. Abbreviations: cs - central segment, fr - fundamental rib, ic - inner cortex, oc - outer cortex, Lb - long branch, sb - short branch. Yellow arrowheads indicate ultimate ribs. (DH) are all oriented with the cortex of the axis towards the top of the photo. Scale bars - 500 μm, (B) - 2 mm. Image credit: Champreux et al, doi: 10.7717/peerj.9321.

360-Million-Year-Old Fossil Reveals Extinct Species of Fern-Like Plant

Jun 17, 2020 by Enrico de Lazaro

Paleontologists have identified a new genus and species of fern-like plant from a single fossilized specimen collected in the New England region of New...