Because fern is a popular plant now and in the dinosaur days
No current plants, but some fossil imprints are of long dead plants (usually from about 1/4 billion yeas ago).
Ferns and their fossil remains have been found on every continent
How many ferns (that is a plural!) between the trees?If there are equal numbers of ferns in between each pair of trees: Five times as many ferns as between one pair.
Fossils are what's left of ancient plants and animals. They are imprints in rock, generally sedimentary rock. The word "fossil"means "dug up" and it comes from Latin. Fossil fuels were made in the earth and took a long time to make.
They are the cause of the formation of fossil fuels
The first fossil records of vascular plants that is land plants with vascular tissues Fossil ferns and seed ferns include Pecopteris Cyclopteris
Ancient plants.
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No current plants, but some fossil imprints are of long dead plants (usually from about 1/4 billion yeas ago).
Fossil.
A fossil is the preserved remains or traces of a once-living organism, while an imprint is a mark or indentation left behind by an organism on a surface. Fossils can include imprints, but not all imprints are considered fossils. Fossils provide more detailed information about the organism's structure and biology, while imprints are more surface-level.
yes, but they are only usually imprints as sponges decompose after a certain amount of time
they are often porous because of fossil imprints and pressure put on them at different spots
Ferns and their fossil remains have been found on every continent
pressure and heat
The word you are probably looking for is "fossil".
decay