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Eathiestrobus
Genus Eathiestrobus G.W. Rothwell, G.K. Mapes, Stockey, J. Hilton Amer. J. Bot., 98(4): 709. Apr 2012
- Name
- Eathiestrobus
- Rank
- Genus
- Authors (Pub.)
- Rothwell G. W.
Mapes G.
Stockey R. A.
Hilton J.
- Publication
- The seed cone Eathiestrobus gen. nov.: fossil evidence for a Jurassic origin of Pinaceae [2012/4]
- Journal
- American Journal of Botany
- Volume
- 98
- Issue
- 4
- Page number
- 709
- Year
- 2012
- Parent Taxon
- [Order] Pinales
- Fossil Status
- cones (ovuliferous)
- Type
- Eathiestrobus mackenziei
- Diagnosis
- Cylindrical conifer seed cones with numerous, helically arranged bracts and axillary ovuliferous scales; bracts and scales fused to midregion, both thinning distally and marginally and of nearly equivalent length, width, and
thickness. Cone axis with little wood; prominent pith surrounded by small cauline bundles; bract trace diverging as terete bundle, subtending two small traces to ovuliferous scale; cortex parenchymatous with numerous resin canals. Bract and scale separation lateral; seeds, two, inverted, asymmetrical, attached to adaxial surface of ovuliferous scale in region of bractovuliferous scale separation. Interseminal ridge small. Seed attached basally, wing consisting of scale tissue, extending basally and to side of seed facing periphery of scale.
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