Dicroidium Odontopteroides
   HOME

TheInfoList



OR:

''Dicroidium odontopteroides'' was a common and widespread species of '' Dicroidium'' known from
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
,
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
,
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
,
South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
and
Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. ...
. The species was first discovered in Triassic sediments of Tasmania and described by the palaeontologist John Morris in 1845.


Description

The leaves of ''Dicroidium odontopteroides'' differ from other species of '' Dicroidium'' in being unipinnate and having short rounded pinnae.


Whole plant reconstructions

''Dicroidium odontopteroides'' may have been produced by the same plant as '' Umkomasia macleanii'' (ovulate structures) and '' Pteruchus africanus'' (pollen organs), based on cuticular similarities between these leaves and reproductive structures at the Umkomaas locality of South Africa.


References

Triassic plants Pteridospermatophyta {{triassic-plant-stub