The relative scarcity of fossil evidence prevents precise dating, but the most recent molecular study, based on multilocus sequence typing, suggest a Late Carboniferous – Early Permian origin of extant amphibians.

Other commentators, such as John Calvin, attach no great importance to the precise dating.

The precise dating of the Constitution of Medina remains debated but generally scholars agree it was written shortly after the Hijra ( 622 ).

" Almost universally, academics, economists, policy makers, and businesses defer to the determination by the NBER for the precise dating of a recession's onset and end.

Built in winter 3807 BC or spring 3806 BC, tree-ring dating ( Dendrochronology ) enabled very precise dating.

Rubidium-strontium dating is not as precise as the uranium-lead method, with errors of 30 to 50 million years for a 3-billion-year-old sample.

With the advent of more precise dating, a phytoplankton extinction event which had been associated with Snowball Earth was shown to precede glaciations by 16 million years.

) do not allow very precise dating, even augmented by the few existing C-14 dates due to the tolerance inherent in these.

It is possible to estimate the age of a young horse by observing the pattern of teeth in the mouth, based on which teeth have erupted, although the difference between breeds and individuals make precise dating impossible.

Tree-ring dating ( dendrochronology ) of the timbers has enabled very precise dating of the track, showing it was built in 3807 or 3806 BC.

The Bablyonian Chronicles allow the fairly precise dating of the capture of Jehoiachin and the start of Zedekiah's reign, and they also give the accession year of Nebuchadnezzar's successor Amel-Marduk ( Evil Merodach ) as 562 / 561 BC, which was the 37th year of Jehoiachin's captivity according to 2 Kings 25: 27.

Though untouched areas adjacent to the original excavations were left undisturbed awaiting a more precise dating of Roman pottery types, the " Baths of the Swimmer ", named for the mosaic figure in the apodyterium, were meticulously excavated, in 1966 – 70 and 1974 – 75, in part as a training ground for young archaeologists and in part to establish a laboratory of well-understood finds as a teaching aid.

Although precise dating is debated, the A, B, and C texts are now commonly thought of as the progressive ( 20 – 25 years ) work of a single author.

* The Sweet Track, an ancient causeway also in the Somerset Levels, the oldest timber trackway discovered in Northern Europe, is built in 3807 BC or 3806 BC, tree-ring dating ( Dendrochronology ) enabled very precise dating.

There is a relatively good fossil record of chiton shells, but ocelli are only present in those dating to or younger ; this would make the ocelli, whose precise function is unclear, the most recent eyes to evolve.

Dating Ockeghem's works is controversial, as there are almost no external references allowing precise dating, excepting of course the death of Binchois ( 1460 ) for which Ockeghem composed a motet-chanson.

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.

The manuscript itself carries no date but a rather precise dating has been given to it, based mainly on its palaeography or handwriting, and also the known facts of Cuthbert's burial.

The less precise hints about dating that can be derived from the style of the binding compared to other works do not conflict with these conclusions.

The precise dating of the play is unknown, although a holographic transcript ( dated 1590 in another hand ) exists and there is some evidence that it was being performed on stage as early as 1587.

The precise dating of the play is important for two reasons, firstly because this play may be the earliest surviving original work of Munday and secondly because of the parallels that exist between this play and Shakespeare's Midsummer Night's Dream.

Chamberlain discovered the existence of such negotiations from Henry Labouchere, but unsure of the precise nature of Gladstone's offer to Parnell, did not press the issue, although he had already stated his opposition to Home Rule, declaring that " I cannot admit that five millions of Irishmen have any greater right to govern themselves without regard to the rest of the United Kingdom than the five million inhabitants of the metropolis ( i. e. London ).

On June 20, 2007, the NHL Board of Governors approved a change to NHL Rule 76 ( 76. 2, to be precise ) which governs faceoffs.

USNO also has an " Alternate Master Clock " site in Colorado Springs, CO which, with the " Master Clock ", provides precise time to the GPS satellite constellation run by the U. S. Air Force ; and it performs radio VLBI-based positions of quasars with numerous global collaborators, in order to produce Earth Orientation parameters.

The precise time of Hermann's entry into the Order is unknown, but he first appears as Grand Master at the coronation of Count John of Brienne as King of Jerusalem in 1210.

Epictetus ' description of the Master Argument is not in the form as it would have been presented by Diodorus, which makes it difficult to know the precise nature of his argument.

Sensibility is a vague word, covering an area of meaning rather than any precise talent, quality, or skill.

Without a precise knowledge of Germanic philology, however, it is debatable whether their use was not more often a source of confusion and error than anything else.

This, naturally, will be difficult to do since both the archaeological and place-name evidence in this period, with some fortunate exceptions, is insufficient for precise chronological purposes.

I have said before how difficult it is to make any precise statements with regard to the character of the Greek and Elizabethan public.

therefore, only with precise foreknowledge of the line frequencies is an astronomical search for the radio spectra of these molecules feasible.

It is equipped with electronic controls that can be set to hold precise tension and speed.

One species is restricted to statements which are neither explicit nor precise regarding a particular person, place, time or thing.

The precise mechanism for organification of iodine in the thyroid is not as yet completely understood.

Uncertainty overcoming itself is the precondition of the quest for new and more precise information about the world.

The underlying assumption, of course, is that only sight and touch enable us, in any precise and fully dependable way, to locate objects in space beyond us, the other senses being decidedly inferior, if not totally inadequate, in this regard.

if it is somber, it is also precise, and the precision lends authority to the vision.

In continuation of these theoretical studies, a more precise elucidation of the effects of imperfections in network structure is sought.

Because an algorithm is a precise list of precise steps, the order of computation will always be critical to the functioning of the algorithm.

So to be precise the following is really Nicomachus ' algorithm.

Fossil evidence of the Asterales is rare and belongs to rather recent epochs, so the precise estimation of the order's age is quite difficult.

Korean is copiously attested from the mid-15th century on in the phonetically precise Hangul system of writing ( ib.

A consequence of using waveforms to describe particles is that it is mathematically impossible to obtain precise values for both the position and momentum of a particle at the same time ; this became known as the uncertainty principle, formulated by Werner Heisenberg in 1926.

:" It is the misfortune of small, precise men always to hanker after large and flamboyant women.

The precise nature of the origin of this urn is matter of dispute.

Astrometry is the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.

Like the earlier catalogs of Hipparchus and Ptolemy, Ulugh Beg's catalogue is estimated to have been precise to within approximately 20 minutes of arc.