According to the fossil record, Lissamphibia, which includes all modern amphibians and is the only surviving lineage, may have branched off from the extinct groups Temnospondyli and Lepospondyli at some period between the Late Carboniferous and the Early Triassic.

Early sources are not clear but various groups of Christian communities would have had a group of college or presbyter-overseers functioning as leaders of the local churches.

Early in the 17th century, groups in the region rallied to Abd al-Karim, who overthrew the ruling Tunjur group, transforming Ouaddai in an Islamic sultanate.

Early Carboniferous land plants, some of which were preserved in coal balls, were very similar to those of the preceding Late Devonian, but new groups also appeared at this time.

The main Early Carboniferous plants were the Equisetales ( horse-tails ), Sphenophyllales ( vine-like plants ), Lycopodiales ( club mosses ), Lepidodendrales ( scale trees ), Filicales ( ferns ), Medullosales ( informally included in the " seed ferns ", an artificial assemblage of a number of early gymnosperm groups ) and the Cordaitales.

The Cantigas are frequently recorded and performed by Early Music groups, and quite a few CDs featuring music from the Cantigas are available.

In Ireland, crannogs tend to reach a floruit during the Early Historic period when they were the homes and retreats of kings, lords, prosperous farmers and occasionally socially marginalised groups such as monastic hermits or metalsmiths who could work in isolation.

Early groups like Napalm Death are credited with laying the groundwork for the style.

Early reports estimated that $ 6 – 20 billion had been spent by the U. S. and Saudi Arabia but more recent reports state that the U. S. and Saudi Arabia provided as much as up to $ 40 billion in cash and weapons, which included over two thousand FIM-92 Stinger surface-to-air missiles, for building up Islamic groups against the Soviet Union.

Early humans became the only one of the 193 primate species to have fleas, which can be attributed to the close living arrangements of large groups of individuals.

Early mages cultivated their magical beliefs alone or in small groups, generally conforming to and influencing the belief systems of their societies.

Early Vedic society consisted of largely pastoral groups, with late Harappan urbanization having been abandoned.

Early workplaces were often segregated, with different groups being allowed certain jobs and rates of pay.

Early homophile groups in the U. S. sought to prove that gay people could be assimilated into society, and they favored non-confrontational education for homosexuals and heterosexuals alike.

Early tribes were nomadic or semi-nomadic due to the arid conditions of the region as the steppe culture in Central Asia was an extension of a larger Eurasian series of horse cultures which spanned the entire spectrum of language families including the Indo-Europeans and Turko-Mongol groups.

As with many mammal groups, even-toed ungulates first appeared during the Early Eocene

Rome's population started declining in 402 AD when Flavius Honorius, Western Roman Emperor from 395 to 423, moved the government to Ravenna and Rome's population declined to a mere 20, 000 during the Early Middle Ages, reducing the sprawling city to groups of inhabited buildings interspersed among large areas of ruins and vegetation.

Early in their culture, the Pipil became one of the few Mesoamerican indigenous groups to abolish human sacrifice.

Early sources are not clear but various groups of Christian communities would have had a group of college or presbyter-overseers functioning as leaders of the local churches.

Alternatively, John Howell defined twelve groups: the Evergreen, Alpina, Macropetala, Montana, Rockery, Early Large-Flowered, Late Large-Flowered, Herbaceous, Viticella, Texensis, Orientalis, and Late Mixed groups.

Early groups were more diverse musically, performing blues and jump blues.

Early attempts to identify relationships between major groups were made in the 19th century by Ernst Haeckel, and by comparative anatomists such as Thomas Henry Huxley and E. Ray Lankester.

Early issues featured a range of broadly anarchist and ecological ideas, bringing together groups and individuals as varied as Class War, veteran anarchist writer Colin Ward, anarcho-punk band Crass, as well as the Peace Convoy, anti-nuclear campaigners, animal rights activists and so on.

Early equipment was very flimsy ; ;

Early guncotton was unstable however, and burned very fast and hot, leading to greatly increased barrel wear.

It is written in English, very similar to the Early Modern English linguistic style of the King James Version of the Bible, and has since been fully or partially translated into 108 languages.

Early twentieth-century experiments on the physics of very small-scale phenomena led to the discovery of phenomena which could not be predicted on the basis of classical physics, and to the development of new models ( theories ) that described and predicted very accurately these micro-scale phenomena.

Early clinical trials typically enroll a very small number of patients, and the purpose is to identify major safety issues and the maximum tolerated dose, which is the highest dose that does not produce serious or fatal adverse effects.

Early fighters were very small and lightly armed by later standards, and most were biplanes built with a wooden frame, covered with fabric, and limited to about 100 mph.

Because Galen's works were not translated into Latin in the ancient period, and because of the collapse of the Roman Empire in the West, the study of Galen, along with the Greek medical tradition as a whole, went into decline in Western Europe during the Early Middle Ages, when very few Latin scholars could read Greek.

In the icons of Eastern Orthodoxy, and of the Early Medieval West, very little room is made for artistic license.

Early heavy machine guns were often water-cooled ; while very effective, the water also added considerable weight to an already bulky design.

Early MUMPS memory partitions were limited to 2048 bytes so aggressive abbreviation greatly aided multi-programming on severely resource limited hardware, because more than one MUMPS job could fit into the very small memories extant in hardware at the time.

Early forms are very similar in many ways to certain forms of voulge, while 16th century and later forms are similar to the pollaxe.

Early radars used very long wavelengths that were larger than the targets and thus received a vague signal, whereas some modern systems use shorter wavelengths ( a few centimeters or less ) that can image objects as small as a loaf of bread.

Early rockets were very inaccurate.

To achieve a tone and quality that was true to the story as well as reflected the period in which it is set, Spielberg once again collaborated with cinematographer Janusz Kamiński, saying, " Early on, we both knew that we did not want this to look like a Technicolor extravaganza about World War II, but more like color newsreel footage from the 1940s, which is very desaturated and low-tech.

Early drives used very large spools, which necessarily had high inertia and did not start and stop moving easily.

So far evidence for the earliest periods of the Early Bronze Age in Mesopotamia is very limited. Mesh-Ane-pada is the first king mentioned in the Sumerian King List, and appears to have lived in the 26th century BC.

Early XSLT processors had very few optimizations.

Early on they were very technically oriented with type-in programs and machine code tutorials.

These titles are usually translated as count or duke, but these terms conveyed very different meanings in the Early Middle Ages, so the Latin versions are to be preferred.

Early assays such as the HLA-DQ alpha reverse dot blot strips grew to be very popular due to their ease of use, and the speed with which a result could be obtained.

Early Psions are very robust ( as witnessed by tech support people who were able to retrieve data from machines run over by cars and even forklift trucks ) and they have been sold in very large numbers ( about a million ).

Early wet plate cameras were very simple and little different from Daguerreotype cameras, but more sophisticated designs eventually appeared.