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Tree remains that have undergone petrifaction, as seen in Petrified Forest National Park. In geology, petrification (from Ancient Greek πέτρα (pétra) 'rock, stone') is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.
Pectinariidae, or the trumpet worms or ice cream cone worms, are a family of marine polychaete worms that build tubes using grains of sand roughly resembling ice cream cones or trumpets. These structures can be up to 5 centimetres (2 in) long. The earliest pectinariid fossils are known from the Cretaceous. [1]
A fossil track or ichnite (Greek "ιχνιον" (ichnion) – a track, trace or footstep) is a fossilized footprint. This is a type of trace fossil. A fossil trackway is a sequence of fossil tracks left by a single organism. Over the years, many ichnites have been found, around the world, giving important clues about the behaviour (and foot ...
The fossilized footprints were made public in 2021 and date back between 21,000 and 23,000 years, according to new research that builds upon past evidence. - National Park Service
Fossilized footprints in Kenya captured the moment, according to a new study. ... dodging predators and finding food in the ancient landscape, according to the study. Homo erectus went on to ...
The 2021 study dated the footprints using radiocarbon dating to determine the age of seeds of a common aquatic plant called spiral ditchgrass found alongside the fossilized foot impressions.
Footprints have been preserved as fossils and provide evidence of prehistoric life. Known as " ichnites ", these trace fossils can give clues to the behaviour of specific species of dinosaur . The study of such fossils is known as ichnology and the footprints may be given scientific names ( ichnospecies ).
The fossils were discovered in the mountains of northern Italy's Lombardy region after the snow and ice that once covered them melted away, scientists say, as a result of the ongoing climate crisis.