Your Artstor image groups were copied to Workspace. The Artstor website will be retired on Aug 1st. Botanical Gazette Vol. 26, No. 3, Sep., 1898 The Origin of Gymnosperms and the Seed H... The Origin ...

This group of plants is so named because the seeds are not enclosed inside an ovary, unlike in the flowering plants (see Plant Evolution IV). The gymnosperms originated about 319 million years ago, in ...

A new study suggests that there is a third type of wood—known as “midwood”—that could explain the nanoscale architecture of ...

A study of a bizarre prehistoric bird's fossilized remains has uncovered fascinating new details regarding its behavior.

The biologists analysed data held by the Royal Botanic Gardens, Kew, on the genome size of hundreds of plants, including flowering plants, gymnosperms (a group of plants, which include conifers ...

Ginkgos are a unique type of plant. They're gymnosperms like conifers, meaning they have seeds but don't produce flowers. The first species of Ginkgo evolved in the Permian, before the dinosaurs. One ...

The prehistoric trees that Longipteryx appears to have fed from were gymnosperms, relatives of today's conifers and ginkgos. Flowering plants were only just starting to flourish when the bird ...

Jurassic ammonites, bivalves, mammaliaform teeth and lizards are just some of the fossils that have turned up here. As for the plant kingdom, the Jurassic was the age of the gymnosperms – a group of ...

Longipteryx was feeding from gymnosperms, relatives of the ginkgos and conifers around today. Longipteryx also lived in a temperate climate, so it likely wasn’t feasting on fruits all year.

Unlike rhizobia and their legume partners, mycorrhizal associations are ubiquitous and relatively nonselective, occurring in ~80% of angiosperms and in all gymnosperms (Wilcox, 1991). The ability ...

Some roughly 120-million-year-old seeds are telling a new story about what the Earth’s first birds ate. Paleontologists found the seeds in the fossilized stomachs of an early bird species, despite a ...