-40%
Rarer fossil plant extinct lycopod Lepidophloios young trunk fossil Halonia !!!
$ 4.75
- Description
- Size Guide
Description
My specimens are genuine and will be delivered with a Certificate of authenticity, age and origin and scientific works copy described this species !I combine shipping costs.
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Specimen:
Beautiful, detailed specimen of
Lepidodendron obovatum
STERNBERG
" scale tree " lycopod bark
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Upper Carboniferous – Pennsylvanian - Namurian B
Age:
ca. 320 Mya
Matrix dimensions:
ca. 6,0 x 4,0 x 1,5 cm ( scale-bar - white square on pictures is 1,0 x 1,0 cm )
Description:
Description:
Rarer lycopod fossil ,
interesting
fossil young branch of
Lepidophloios larcinus
Sternberg
1820
called
Halonia tortuosa
Lidney & Hutton
The genus
Lepidophloios
appears to have been established by Sternberg at a time when our knowledge of Carboniferous plants was based, for the most part, upon merely superficial characters and not upon the anatomical structure of the plants themselves. The two genera, Lepidodendron and Lepidophloios, though long known to hold close affinities, are clearly separated by well-marked characters. In Lepidophloios the leaf-cushions are rhomboidal (as in L. laricinum) or elongated-truncate (as in L. scoticum), and the leaf-scar is situated at the extremity of the cushion, having three punctiform cicatricules as in Lepidodendron. The cones are borne on specially modified branches and are arranged in spirals (Halonia). These young branches grew for the propagation period from the main trunk with cone on top. After reaching maturity by the cones, twigs with the cones  fall off on the ground. The genus Lepidophloios appears to have been established by Sternberg at a time when our knowledge of Carboniferous plants was based, for the most part, upon merely superficial characters and not upon the anatomical structure of the plants themselves. The two genera, Lepidodendron and Lepidophloios, though long known to hold close affinities, are clearly separated by well-marked characters. In Lepidophloios the leaf-cushions are rhomboidal (as in L. laricinum) or elongated-truncate (as in L. scoticum), and the leaf-scar is situated at the extremity of the cushion, having three punctiform cicatricules as in Lepidodendron. The cones are borne on specially modified branches and are arranged in spirals (Halonia).
Systematic:
Division:
Tracheophyta (Lycoposida)
Class:
Lycopodinae
Order:
Lycophodiales
Family:
Lepidodendraceae
Genus:
Lepidophloios / Halonia
Species:
Lepidophloios larcinus
Sternberg 1820 /
Halonia tortuosa
Lidney&Hutton