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Parataiwania
Genus Parataiwania M. Nishida, Tak. Ohsawa, H. Nishida J. Jap. Bot., 67(1): 2. 20 Feb 1992
- Name
- Parataiwania
- Rank
- Genus
- Authors (Pub.)
- Nishida M.
Ohsawa T.
Nishida H.
- Publication
- Structure and affinities of the petrified plants from the Cretaceous of northern Japan and Saghalien VIII [1992/2]
- Journal
- Journal of Japanese Botany
- Volume
- 67
- Issue
- 1
- Page number
- 2
- Year
- 1992
- Parent Taxon
- [Order] Taxodiales
- Fossil Status
- cones
- Type
- Parataiwania nihongii
- Diagnosis
- Fossil conifer cone with
internal structure. Ellipsoid cones consisting of
non-peltate bract-scale complexes with tapered
apices. Four-seeded complexes composed of ligulelike
scale and fleshy large bract mostly fused except
at terminal portion of scale. Vascular trace from
vascular cylinder of cone axis to bract-scale complex
single and terete，fu rther divided several times
to make ten or more strands arranged horizontally
in distal portion of bract. Resin canals at abaxial
side of strands and arranged horizontally. Seeds
inverted with lateral and distal wings.
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