Plant and Flower Fossils



Paleobotany, also spelled as palaeobotany (from the Greek words paleon = old and "botany", study of plants), is the branch of paleontology or paleobiology dealing with the recovery and identification of plant remains from geological contexts, and their use for the biological reconstruction of past environments (paleogeography), and both the evolutionary history of plants, with a bearing upon the evolution of life in general. A synonym is paleophytology. Paleobotany includes the study of terrestrial plant fossils, as well as the study of prehistoric marine photoautotrophs, such as photosynthetic algae, seaweeds or kelp. A closely related field is palynology, which is the study of fossilized and extant spores and pollen.

Paleobotany is important in the reconstruction of ancient ecological systems and climate, known as paleoecology and paleoclimatology respectively; and is fundamental to the study of green plant development and evolution. Paleobotany has also become important to the field of archaeology, primarily for the use of phytoliths in relative dating and in paleoethnobotany. Read more ...

Amber is fossilized tree resin (not sap), which has been appreciated for its color and natural beauty since Neolithic times. Much valued from antiquity to the present as a gemstone, amber is made into a variety of decorative objects. Amber is used as an ingredient in perfumes, as a healing agent in folk medicine, and as jewelry. There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions. Amber occurring in coal seams is also called resinite, and the term ambrite is applied to that found specifically within New Zealand coal seams. Read more ...




In the News ...





Earliest Evidence of Flower Pollination by Birds Unearthed   Live Science - May 28, 2014
Birds have been visiting and pollinating flowers for at least 47 million years, fossil evidence now suggests. The new find pushes back the onset of ornithophily, or bird pollination, by about 17 million years, researchers say. To pollinate, most species of angiosperms (flowering plants) require assistance from animals, particularly insects and birds. Though research suggests that insects have been pollinating flowers since the early Cretaceous period, over 100 million years ago, the onset of ornithophily has long remained elusive. Previously, fossils of modern-type hummingbirds suggested ornithophily began as early as 30 million years ago, but this conclusion was only inferred indirectly from the birds' long beaks and presumed hovering capabilities. However, researchers have now analyzed a well-preserved, 47-million-year-old fossil of the extinct bird Pumiliornis tessellatus, and found that the animal's stomach contents contain numerous angiosperm pollen grains. The discovery is the first direct fossil evidence of flower visitation by birds, and suggests that ornithophily is far older than previously believed.




  Ancient plants 'frozen in time' by space impacts   BBC - April 18, 2014
Ancient plant material has been preserved in the glass formed by asteroids hitting the Earth, scientists report. The "frozen in aspic" appearance of what are apparently fragments of grass is spectacular enough. Incredibly, the searing heat generated by the impacts was responsible for the remarkable preservation.




Million suns shed light on fossilized plant   PhysOrg - March 25, 2014

Scientists have used one of the brightest lights in the Universe to expose the biochemical structure of a 50 million-year-old fossil plant to stunning visual effect. The team of paleontologists, geochemists and physicists investigated the chemistry of exceptionally preserved fossil leaves from the Eocene-aged 'Green River Formation' of the western United States by bombarding the fossils with X-rays brighter than a million suns produced by synchrotron particle accelerators.




Amber fossil reveals ancient reproduction in flowering plants   PhysOrg - January 3, 2014

A 100-million-year old piece of amber has been discovered which reveals the oldest evidence of sexual reproduction in a flowering plant - a cluster of 18 tiny flowers from the Cretaceous Period - with one of them in the process of making some new seeds for the next generation. The perfectly-preserved scene, in a plant now extinct, is part of a portrait created in the mid-Cretaceous when flowering plants were changing the face of the Earth forever, adding beauty, biodiversity and food. It appears identical to the reproduction process that "angiosperms," or flowering plants still use today.




This Could Be the Oldest Flowering Plant Ever Found in North America   Smithsonian - November 29, 2013

A new analysis of the Smithsonian's fossil collection turned up a remarkably ancient flowering plan - scientists think it's between 125 and 115 million years old. The fossil most closely resembles a modern subfamily of poppies called Fumarioideae, which includes the bleeding heart There's also a much more recent history of this fossil that's just as fascinating. Jud did a bit of research and found that it'd been excavated in 1971 by a former Smithsonian curator, Leo Hickey, who went on to Yale and died in February before working with Jud to re-analyze the fossil after all these years. Hickey had found it during a dig at the Dutch Gap, in Virginia, in sediments that were exposed over a century earlier, by freed slaves who were forcibly taken from the Roanoke Island Freedmen's Colony by Union troops and forced to dig a canal in August 1864. While digging, they exposed ancient fossil-filled rocks, and a few decades later, in the 1870s and 1880s, scientists worked there to collect fossils and create some of the Smithsonian's first fossil collections. Later, Hickey and other researchers returned to collect remaining specimens.




Oldest Grave Flowers Unearthed in Israel   Live Science - July 1, 2013

The oldest example of grave flowers has been discovered in Israel. An ancient burial pit dating to nearly 14,000 years ago contained impressions from stems and flowers of aromatic plants such as mint and sage. The new find "is the oldest example of putting flowers and fresh plants in the grave before burying the dead. Though the exact purpose of these plants remains a mystery, the findings, detailed today (July 1) in the journal Proceedings of the National Academy of Sciences, shed light on some of the rituals used by one of the earliest human cultures living in fixed settlements.




Russians revive Ice Age flower from frozen burrow   PhysOrg - February 20, 2012
It was an Ice Age squirrel's treasure chamber, a burrow containing fruit and seeds that had been stuck in the Siberian permafrost for over 30,000 years. From the fruit tissues, a team of Russian scientists managed to resurrect an entire plant in a pioneering experiment that paves the way for the revival of other species.




Oldest known Eucalyptus fossils found in South America   PhysOrg - July 19, 2011

Fossils of leaves, flowers, fruits and buds found in Patagonia, Argentina, have been identified as Eucalyptus and date to 51.9 million years ago, making them the oldest scientifically validated Eucalyptus macrofossils and the only ones conclusively identified as naturally occurring outside of Australasia.




Early sunflower family fossil found in South America   PhysOrg - September 28, 2010
A beautifully preserved fossil identified as being of an early relative of the Asteraceae, or aster, family nearly 50 million years old suggests the plant family, which has now colonized much of the planet, originated in South America after Gondwana separated, forming South America, Australia, Africa, Antarctica and India.




Rare fossilized flower found, related to sunflowers   BBC - September 24, 2010

A fossilized flower found in Patagonia by an Argentinean team is shedding light on the origins of sunflowers. The large flower is highly unusual because most plant fossils are just pollen grains. The fossil is from the Asteraceae family, the relatives of daisies, sunflowers, and dandelions. Until now, scientists have relied on genetic evidence to work out where this plant family originated.




How Ancient Flowering Plants Grew: Early Angiosperms Were Weedy, Fast-Growing   Science Daily - April 21, 2010




Secrets In A Seed: Clues Into The Evolution Of The First Flowers   Science Daily - October 28, 2009
Approximately 120-130 million years ago, one of the most significant events in the history of the Earth occurred: the first flowering plants, or angiosperms, arose. In the late 1800s, Darwin referred to their development as an "abominable mystery." To this day, scientists are still challenged by this "mystery" of how angiosperms originated, rapidly diversified, and rose to dominance.




Orchids date to time of the dinos BBC - August 29, 2007
Ancient orchid pollen found attached to a bee trapped in amber suggests the "supermodels of the plant world" were blooming at the time of the dinosaurs. The discovery indicates that orchids arose between 76 and 84 million years ago, making them far older than experts had previously thought. Experts used the fossil pollen grains to estimate the ages of major branches of orchids living today.




First Orchid Fossil Found in Amber National Geographic - August 29, 2007

For this ancient bee, carrying a flower into the afterlife allowed it to deliver a rare gift to today's biologists. The extinct species of stingless bee was found encased in amber with a well-preserved part of an ancient orchid attached to its back. The amber, dug up in a mine in the Dominican Republic, is 10 million to 15 million years old. The pollen-bearing package represents the first known fossil of an orchid, researchers say. Orchids are the most diverse flowering plants on Earth, with more than 20,000 known species. But until now the flowers have been absent from the fossil record.




Fossilized Chinese plant may have been the first flower BBC - May 2002

The ancestor of all the grains, fruits and blossoms of the modern world may have been a fragile water plant that lived in a Chinese lake approximately 125 million years ago. The plant, called Archaefructus sinensis for "ancient fruit from China," is of a species never before seen and carries the clear characteristics of the most primitive of flowering plants.




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