A transitional fossil is any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group...

fossils (also known as guide fossils or indicator fossils) are fossils used to define and identify geologic periods (or faunal stages). Index fossils...

is a recently discovered transitional fossil. It is often used in popular science and in the media for any new transitional form. The term originated...

of the process of evolution. The transition itself can only be illustrated and corroborated by transitional fossils, which are never guaranteed to demonstrate...

A fossil fuel is a flammable carbon compound- or hydrocarbon-containing material formed naturally in the Earth's crust from the buried remains of prehistoric...

(A ↔ G) or a pyrimidine nucleotide to another pyrimidine (C ↔ T) Transitional fossil, any fossilized remains of a lifeform that exhibits the characteristics...

also suggested that gaps in the fossil record were the result of incomplete fossilization and that transitional fossils would eventually be found that...

dictionary. A trace fossil, also called an ichnofossil (/ˈɪknoʊˌfɒsɪl/; from Ancient Greek ἴχνος (íkhnos) 'trace, track'), is a fossil record of biological...

Fossil collecting (sometimes, in a non-scientific sense, fossil hunting) is the collection of the fossils for scientific study, hobby, or profit. Fossil...

of first human settlements List of fossil primates List of fossil sites List of mummies List of transitional fossils Timeline of human evolution Timeline...

well-suited for both land and water. Although transitional fossils elucidate the evolutionary transition of one life-form to another, they only exemplify...

part of the ongoing renewable energy transition. Many countries are shutting down coal-fired power stations, and fossil-fuelled electricity generation is...

'pinnipedimorph'. Ed Yong, Puijila, the walking seal — a beautiful transitional fossil. "Fossil seal had the feet of an otter" by Bob Holmes, New Scientist,...

that humans must be distantly related to all other species. Without transitional fossils, scientists presumed that humans' closest relatives were the great...

display a mosaic of shark and acanthodian features, making it a transitional fossil and further reinforcing this idea. Phylogeny after The oldest remains...

graphic designer Michael Hofler, reference the Archaeopteryx, the transitional fossil of early dinosaurs to modern dinosaurs (birds). Arc'teryx is known...

Fossil wood, also known as fossilized tree, is wood that is preserved in the fossil record. Over time the wood will usually be the part of a plant that...

Romance languages, the sense of the word was extended to Baltic amber (fossil resin) from as early as the late 13th century. At first called white or...

and amphibians, with a host of transitional fossils, though there are still large blank areas. The earliest known fossil vertebrates were heavily armored...

discovery an abundance of transitional fossils has both supported the conclusion and given a detailed history of the transition. The evolution of the stapes...

systematic fossil collection, as demonstrated by a series of important discoveries in China near the end of the 20th century. Many transitional fossils have...

branch of botany dealing with the recovery and identification of plant fossils from geological contexts, and their use for the biological reconstruction...

The fossil trade is the purchase and sale of fossils. This is at times done illegally with stolen fossils, and important scientific specimens are lost...

inorganic objects, markings, or impressions that might be mistaken for fossils. Pseudofossils may be misleading, as some types of mineral deposits can...

a fossil of the theropod dinosaur Sinosauropteryx showing evidence of feathers in the Liaoning province of China. 2004 — Tiktaalik, a transitional form...

skeleton. These features make Archaeopteryx a clear candidate for a transitional fossil between non-avian dinosaurs and avian dinosaurs (birds). Thus, Archaeopteryx...

identification of their fossil remains from geological (or even archeological) contexts. The field also extends to the use of these fossil records for reconstructive...

of paleontologists regard it as the most basal whale, representing a transitional stage between land mammals and whales. It belongs to the even-toed ungulates...

the transition of remains, parts, or products of organisms from the biosphere to the lithosphere. The term taphomorph is used to describe fossil structures...

that really is a descendant of the original taxon, and highlights transitional fossil records, which might be found later. A zombie taxon has been considered...