-
virtually identical to
modern species are
known from the Jur****ic onwards.
Isoetites rolandii from the
Middle Jur****ic of
Oregon is the
earliest known species...
-
isoetaleans to
modern Isotetes have been
regarded as
unclear by
other authors.
Isoetites rolandii from the Late Jur****ic of
North America has been
described as...
- Order:
Isoetales Family:
Isoetaceae Rchb.
Genera Isoetes †Lepacyclotes †
Isoetites †Skilliostrobus †Tomiostrobus Synonyms[citation needed]
Isoetaceae Dumort...
- the globe. The
oldest fossil closely resembling modern quillworts is
Isoetites rolandii from the Late Jur****ic of
North America. Karrfalt, Eric E. (1982-12-01)...
-
Family Genus Species Member Abundance Notes Image Isoetaceae †
Isoetites †I.
horridus (Dawson) R.W. Brown, 1939 Lake
Unita 1
specimen An
isoetaceous quillwort...
- the
Conifer Austrohamia from the
Lower Jur****ic of
Argentina and China.
Isoetites I.
abundans Mount Carson Lower and
Middle Hanson Formation Stems A lycophyte...
-
Welwitschiophyllum brasiliense,
Welwitschiostrobus murili,
Araucariostrobus sp.,
Frenelopsis sp.,
Isoetites sp.,
Lindleycladus sp.,
Schizoneura sp....
-
horsetails (Neocalamites) and
lycopods (Ferganadendron, Mesenteriophyllum,
Isoetites) are more common.
Pteridosperms are
abundant and diverse,
making up more...
-
Small three-dimensional
horsetail stems preserved in
pyrite nodules.
Isoetites I.
circularis Arizona "Petrified Forest"
sensu lato Rare
Quillwort shoots...
-
Inaperturopollenites I. sp. Base of the
Marquechi Member.
Pollen grains. A conifer.
Isoetites I. sp. San Juan Member. Leaves. An isoetalean.
Leptolepidites L. sp. 1...
