Petrified pine cone in Matrix (Araucaria New genus) - Patagonia, Argentina

Description

The Stem, Tissues, seeds, and exterior scales still have great details.
Jurassic Petrified pine cone in matrix (volcanic ash), 165 million years old, from Santa Cruz Province, Patagonia region, Argentina.
New genus
The outer scales in this cone run from the bottom toward the stem, in the opposite
direction
than the scales on the Araucaria Mirabilis.
Size: 4" x 4"
Araucaria mirabilis
is an
extintct species of coniferous from Paragonia, Argentina
. It belongs to the
section Bunya
(the only living species of which is
Araucaria bidwillii
from
Australia
) of the
genus Araucaria.
Araucaria. mirabilis
are known from a very well preserved
silicified
wood and
cones
from the
Cerro cuadrado
, Petrified Forest, located in the Bella Vista ranch in Santa Cruz Province, (Patagonia region) Argentina.
The site was buried by a volcanic eruption during the
Middle Jurassic
, approximately 160
millon years ago.
This pine cones are some of the best well preserve fossils in the world.
The specimen shows the seeds all around the edge and the fibrous tissues practically intact due to a very slow and stabled silicified  process.
mirror polishing.
Matching pair.
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