Junggaria was a genus of rhyniophyte-like land plants known from fossils found in China in Upper Silurian strata (Přídolí, around 430 to 420 million years ago).

[1] Junggaria spinosa was first described as a new species by Dou in 1983,[2] from four fossil specimens found in the Wutubulake Formation, Xinjiang, China, now dated to the Late Silurian (Přídolí, around 430 to 420 million years ago).

[1] In the flattened fossils, the sporangia consist of a central, roughly circular area, on average 2 mm in diameter, smoothly connected to the end of the stem on which they were borne.

They concluded that "[t]hese unique and somewhat bizarre sporangia ... defy our understanding", but that the most surprising feature was their complexity relative to other Silurian species such as Salopella, Cooksonia or Steganotheca.

The different preservation of the Kazakhstan specimens allowed the presence of a central strand of tracheids to be demonstrated, showing that C. sphaerica is a vascular plant.

[1] A new genus name is required under the International Code of Botanical Nomenclature, but as of April 2011[update] does not appear to have been created, so that forms such as "Cooksonella sphaerica/Junggaria spinosa" will be found in the literature.