compression fossil उदाहरण वाक्य

""'Sciadophyton " "'is a morphotaxon of lower Devonian plants known only from compression fossils.
Of the six fossil species, " P . petrosum " was the first to be described from a compression fossil.
Preserved as a compression fossil, the female individual is fossilized in a resting position giving a side view to the body and wings.
The "'film pull "'technique is a means of recovering carbonaceous compression fossils for study under transmitted light microscopy.
The oldest fossil bryophyte is a compression fossil of " Pallavicinites devonicus " from Upper Devonian rocks that has been confidently assigned to the Metzgeriales.

Compression fossils are formed most commonly in environments where fine sediment is deposited, such as in river deltas, lagoons, along rivers, and in ponds.
Another series of species were described from compression fossils found in thin layers and concretions of micrite from the " insect bed " and older stratum of the Bembridge Marls.
Comparison to other species is complicated however, by the other fossil workers being described from amber specimens and not compression fossils like " F . biamoensis ".
Because " Protosalvinia " is usually preserved as a compression fossil, it can be difficult to determine whether its anatomy is more like a plant or an alga.
The species was based on a group of seven separate fossil ants, which were preserved as compression fossils in sedimentary rock from the Radoboj area of what is now Croatia.