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Permineralized Jurassic fern rhizome from Korsaröd (Sweden) of Osmundastrum pulchellum. It has preserved Nuclei and Chromosomes, a fine subcellular detail has rarely been documented in fossils. It´s Rooted in DNA content was used to extrapolate relative genome, finding relationships with extant Osmundastrum cinnamomeum, and confirmed a monophyletic Osmunda. Osmundastrum pulchellum is one of the earliest fossil Osmundastrum rhizomes known so far, and the first of its kind from the Mesozoic of Europe. Its impressive preservation has lead to know even the biotic interactions with the Plant. It also has recovered the only know case know to preserve the ongoing mitosis processes in plant cells via calcification from volcanic hydrothermal brine.

Permineralized Jurassic fern rhizome from Korsaröd (Sweden) of Osmundastrum pulchellum. It has preserved Nuclei and Chromosomes, a fine subcellular detail has rarely been documented in fossils. It´s Rooted in DNA content was used to extrapolate relative genome, finding relationships with extant Osmundastrum cinnamomeum, and confirmed a monophyletic Osmunda. Osmundastrum pulchellum is one of the earliest fossil Osmundastrum rhizomes known so far, and the first of its kind from the Mesozoic of Europe. Its impressive preservation has lead to know even the biotic interactions with the Plant. It also has recovered the only know case know to preserve the ongoing mitosis processes in plant cells via calcification from volcanic hydrothermal brine.

DNA Sweden Jurassic Mesozoic +1
Neck (top) and lower back (bottom) vertebrae of plesiosaur Scanisaurus sp., excavated in the Kristianstad Basin and exhibited at the "Havsdrakarnas hus" exhibition in Bromölla, Sweden. Background digitally replaced with black color.
Taxa Scanisaurus

Neck (top) and lower back (bottom) vertebrae of plesiosaur Scanisaurus sp., excavated in the Kristianstad Basin and exhibited at the "Havsdrakarnas hus" exhibition in Bromölla, Sweden. Background digitally replaced with black color.

Sweden Ichthyovenator Plesiosauria Scanisaurus +1
Neck (top) and lower back (bottom) vertebrae of plesiosaur Scanisaurus sp., excavated in the Kristianstad Basin and exhibited at the "Havsdrakarnas hus" exhibition in Bromölla, Sweden. Background digitally replaced with black color.
Taxa Scarrisaurus

Neck (top) and lower back (bottom) vertebrae of plesiosaur Scanisaurus sp., excavated in the Kristianstad Basin and exhibited at the "Havsdrakarnas hus" exhibition in Bromölla, Sweden. Background digitally replaced with black color.

Sweden Ichthyovenator Plesiosauria Scanisaurus +1
A cast of the pterosaur Dorygnathus banthensis at Göteborgs Naturhistoriska Museum, Gothenburg, Sweden.
Taxa Dorygnathus

A cast of the pterosaur Dorygnathus banthensis at Göteborgs Naturhistoriska Museum, Gothenburg, Sweden.

museum Sweden cast Dorygnathus +1

News

Ancient DNA solves 5,500 year old burial mystery in Sweden
limb DNA Sweden discovery
Ancient DNA from a Stone Age burial site in Sweden shows that families 5,500 years ago were more complex than expected. Many individuals buried together were not immediate family, but second- or third-degree relatives. One grave held a young woman alongside two children who were siblings—yet she wasn’t their mother. The discoveries hint at tight-knit communities where extended kin mattered deeply.
19/02/2026 sciencedaily-human-evo