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However, fossil evidence is scant, and it is really only with the evolution of the diatoms themselves that the heterokonts make a serious impression on the fossil record.
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However and fossil
However, as the preservation of behaviour in the fossil record is exceedingly rare, these ideas cannot readily be tested.
However, the fossil record for frog families and genera is uneven.
However, human activities, primarily the burning of fossil fuels and clearing of forests, have intensified the natural greenhouse effect, causing global warming.
However, no other fossil is known that would be preferable.
However, he maintained that a certain ' materia pinguis ' or ' fatty matter ,' set into fermentation by heat, gave birth to fossil organic shapes, as opposed to fossil shells having belonged to living animals.
However, the energy density of hydrogen is considerably higher than that of electric batteries, making it a serious contender as an energy carrier to replace fossil fuels.
However, recent fossil evidence from Queensland suggests that the Komodo dragon evolved in Australia before spreading to Indonesia.
However, the fossil record retains evidence of many of these older species.
However, despite these limitations, the inclusion of fossils is invaluable, as they can provide information in sparse areas of trees, breaking up long branches and constraining intermediate character states ; thus, fossil taxa contribute as much to tree resolution as modern taxa.
However, it was shown by Bennett that the type specimen later designated for Diopecephalus was a fossil belonging to P. kochi, and no longer thought to be separate from Pterodactylus.
However, the punctuational equilibrium model may still be inferred from both the observation of stasis and examples of rapid and episodic speciation events documented in the fossil record.
However, there has been little luck in getting closer to the true answer, especially because there are almost 10 million years worth of fossil records missing.
However, organisms and ecosystems, as far as it can be determined by the fossil record, do not appear to have undergone the significant change that would be expected by a mass extinction.
However, by that time, nuclear power may have largely replaced fossil fuels as a means of energy production.
However, this was not accepted by the taxonomic community at large ; the name S. harrisii has been retained and S. laniarius relegated to a fossil species.
However, U-shaped fossil burrows that could be Echiuran have been found dating back to the Cambrian.
However, the fossil record of the microscopic non-mineralized group is ( perhaps unsurprisingly ) scarce, so it is difficult to trace out the phylum's evolutionary history in any detail.
However, the precise timing of the " take-over " is unclear, and different authors have conflicting interpretations of the fossil record.
However, the economic system relied on massive concessionary inputs of fossil fuels, primarily from the Soviet Union and the People's Republic of China.
However, in 2010, Melott & Bambach found strong evidence in the fossil record confirming the extinction event periodicity originally claimed by Raup & Sepkoski in 1984, but at a higher confidence level and over a time period nearly twice as long.
However, with the industrialisation of farming and the wider use of fossil fuels the traditional use and management of the Fen began to decline.
However it is certain that their genesis lies earlier than this, as there are large gaps in Australia's fossil record and virtually no fossil record at all in geologically active New Guinea.
However and evidence
However, the conversion from mass to size is unreliable, since many photographic meteors give evidence of a fluffy, loosely bound meteorite structure with densities as low as Af.
However, the regionally differentiated results, which appear below in tables, are interesting evidence of the problems of developing self-government under even the most favorable circumstances.
`` However, evidence that the Axis powers are making significant preparations indicative of such an intention is being reported with increasing frequency from a variety of sources.
However, the confession, which was the only evidence against him, was retracted before the trial.
( However, there is little evidence that the late Lumumba was a Communist.
However, it was held by the Supreme Court that an affidavit can be used as an evidence only if the Court so orders for sufficient reasons.
However, some experimental evidence suggests astatine may have lower melting and boiling points than those implied by the halogen trend.
However, there is no evidence to support this practice and it may in fact delay healing.
However, there is considerable evidence to dispute this claim.
However, there is no evidence that his son and ultimate successor, Constantius II, who was an Arian Christian, was exiled.
However, there is also evidence that silent reading did occur in antiquity and that it was not generally regarded as unusual.
However, there are no known year-names or other archaeological evidence verifying any of these later kings of Akkad or Uruk, apart from a single artifact referencing king Dudu of Akkad.
However, there is scant evidence that he personally performed alchemical experiments.
However, there have been many wild claims of ancient mid eastern ancestry ( including Assyrian ) throughout Europe, Africa and even the Americas, none of which have been supported by mainstream opinion or strong evidence, let alone proof.
However, even with Mozart and Salieri being rivals for certain jobs, there is very little evidence that the relationship between the two composers was at all acrimonious beyond this, especially after 1785 or so when Mozart had become established in Vienna.
However, evidence indicates that harmala alkaloids act only on MAO-A, in a reversible way similar to moclobemide ( an antidepressant that does not require dietary restrictions ).
However, there is limited evidence that mistletoe's effects on the immune system help the body fight cancer .... At present, the use of mistletoe cannot be recommended outside the context of well-designed clinical trials.
However, the 9 / 11 Commission found that although " former Sudanese officials claim that Sudan offered to expel Bin Laden to the United States ", " we have not found any reliable evidence to support the Sudanese claim.
However, there is not enough evidence to distinguish areal contacts from genetic relationship.
However, later evidence gave a much lower SF branching for < sup > 261 </ sup > Bh reducing confidence in this assignment.
However, there is no longer any real evidence that the rulers of Bavaria belonged to a people called the Bavarii.
However, there is evidence of large fires and charred bones from excavations at the site, showing it to have been ritually significant.
However, there is no evidence that Belshazzar ever officially held the title of " king " as he is never called such on the Nabonidus Cylinder.
However, other scholars, including the editors of the Catholic Encyclopedia, argue that the grammatical evidence leads us to conclude that Malachi is in fact a name.
However, the US Centers for Disease Control studied the blood of these individuals and concluded there was no evidence the reactions these people experienced were associated with hypersensitivity to the Starlink Bt protein.
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