The briefness of this period and the swiftness with which radiation took place would help account for the relative scarcity of primitive amphibian fossils.

The reason for neon's relative scarcity on Earth and the inner ( terrestrial ) planets, is that neon forms no compounds to fix it to solids, and is highly volatile, therefore escaping from the planetesimals under the warmth of the newly-ignited Sun in the early Solar System.

This would help account for the relative scarcity of amphibian fossils from the period before the groups split.

The relative scarcity of women gave them many opportunities to do many more things that were not " normally " considered " women's work " of this era.

A unique feature of Australia's fauna is the relative scarcity of native placental mammals.

Residential real estate is becoming highly desirable owing to its relative scarcity and Dahlgren's reputation for excellent " quality of life.

The period is characterized by a relative scarcity of historical and other written records at least for some areas of Europe, rendering it obscure to historians.

In general, more populated cities have more high-rises than smaller cities, due to a relative the scarcity of land and a greater demand for housing.

A firm-or several large firms acting in concert ( see cartel, oligopoly and collusion )-with very large holdings and capital reserves could instigate a market bubble by investing heavily in a given asset, creating a relative scarcity which drives up that asset's price.

Lantau Island is often referred to as " the lungs of Hong Kong ", because of its abundance of indigenous forest and relative scarcity of high-rise residential developments which characterise Hong Kong Island and Kowloon.

The economic structure became very mercantilistic, importing raw materials and exporting finished products — a reflection of Japan's relative scarcity of raw materials.

An evolutionary psychology explanation for dowry and bride price is that bride price is common in polygynous societies which have a relative scarcity of available women.

In monogamous societies where women have little personal wealth dowry is instead common since there is a relative scarcity of wealthy men who can choose from many potential women when marrying.

In addition, the scarcity of known strewn fields relative to the number of identified Impact craters indicate that very special and rarely met circumstances are required in order for tektites to be created by an extraterrestrial impact.

Secondly, both Janssen and Krauss stress in their papers that the relative scarcity of the hieratic text in Ostraca IFAO 1254 precludes a clear dating of the document to Ramesses III's reign and that palaeography, in general, does not give a precise date for a document's creation.

This highly variable outer boundary of geogenic matter has been referred to as the " geopause ," to suggest the relative scarcity of such matter beyond it, where the solar wind dominates.

* The efficient market hypothesis asserts that, in a well organized, reasonably transparent market, the market price is generally equal to or close to the fair value, as investors react quickly to incorporate new information about relative scarcity, utility, or potential returns in their bids ; see also Rational pricing.

PCI also suffered from the relative scarcity of unique interrupt lines.

Inter-group trade may have appeared during the Middle Paleolithic because trade between bands would have helped ensure their survival by allowing them to exchange resources and commodities such as raw materials during times of relative scarcity ( i. e., famine or drought ).

The work proceeded slowly due to the lack of funds and materials, as well as the relative scarcity of stone artisans.

These conversions are prized by collectors for their relative scarcity and chambering in a commonly available round, but suffer from a fragile extractor and a lack of replacement parts.

Now, Mussoorie suffers from overdevelopment of hotels and tourist lodges, given its relative proximity to Delhi, Ambala and Chandigarh, and has serious problems of garbage collection, water scarcity and parking shortages, especially during the summer tourist season.

This is due to several factors, including relative scarcity — a much larger number of stones can be treated to reach gem quality than are found naturally occurring in a gem quality state — and the potential impermanence of various treatments.

In particular, it only partially reflects the scarcity of the means of production relative to their demand.

In 2010, Saadanius was described as a close relative of the last common ancestor of the crown catarrhines, and tentatively dated to 29 – 28 million years ago, helping to fill an 11-million-year gap in the fossil record.

With isotopic dates, absolute dating became possible, and these absolute dates could be applied fossil sequences in which there was datable material, converting the old relative ages into new absolute ages.

In 2008, a 50-million-year-old fossil, Amphistium, was identified as an early relative of the flatfish and transitional fossil.

Cyclostratigraphy documents the often cyclic changes in the relative proportions of minerals, particularly carbonates and of fossil diversity with time, related to changes in palaeoclimates.

It has been suggested that the enigmatic African fossil bird Eremopezus was a relative too, but the evidence for that is unconfirmed.

This results from the realization that the Coleorrhyncha are actually just a " living fossil " relative of the traditional Heteroptera, close enough to them to be actually united with that group.

Because of the shark's modest size, some cryptozoologists have posited the existence of a giant relative, particularly as larger Chlamydoselachus species are known from the fossil record.

The Early Pleistocene B. validipes, whose fossil remains were discovered in Florida, might have been the ancestor of the Green Heron as the living species seems to replace the extinct relative in the fossil record.

) When fossil gymnosperms such as Bennettitales, Caytonia and the glossopterids are considered, it is clear that angiosperms are nested within a larger gymnosperm clade, although which group of gymnosperms is their closest relative remains unclear.

Amphistium is a 50-million-year-old fossil fish which has been identified as an early relative of the flatfish, and as a transitional fossil In Amphistium, the transition from the typical symmetric head of a vertebrate is incomplete, with one eye placed near the top-center of the head.

Note that, as mentioned above, the converse may hold for true living fossil taxa ; that is, they may possess a great many derived features ( autapomorphies ), and not be particularly " primitive " in appearance. The trapdoor spider has segmented plates on its back, making it the most ancient of all living spiders and the closest relative to the scorpions in the spider family.

A 10-million-year-old crane fossil from Nebraska is often cited as being of this species, but this is more likely from a prehistoric relative or the direct ancestor of the Sandhill Crane and may not belong in the genus Grus.

This family is quite old, a living fossil, having apparently diverged before the Cretaceous – Paleogene extinction event — the relative Vegavis iaai lived some 68-67 million years ago.

This family is quite old, a living fossil, having apparently diverged before the Cretaceous – Paleogene extinction event-the relative Vegavis iaai lived some 68-67 million years ago.

Biostratigraphy is the branch of stratigraphy which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them.

A fossil penguin genus, Madrynornis, has been identified as the closest known relative of the crested penguins.

The Paleocene bird Scaniornis was described from fossil bones aged some 60 million years or more, which were found in the Limnhamn limestone ; it was apparently a waterbird and might have been an early flamingo relative.

Based on the fossil evidence, it is believed that adult male Gigantopithecus blacki stood about tall and weighed as much as, making the species two to three times heavier than modern gorillas and nearly five times heavier than the orangutan, its closest living relative.

) The lack of fossil record interruptions, and relative distance of the nearest Hypernova candidate make this a long term ( rather than imminent ) threat.

Having a close European relative of the American form Dryosaurus named led to most of the dryosaurid fossil material of Europe being referred to Valdosaurus.

Outcrops are also critically important for understanding fossil assemblages, paleo-environment, and evolution as they provide a record of relative changes within geologic strata.