Finally, several undescribed microbiotheres have been reported from the Early Eocene Tingamarra Local Fauna in Northeastern Australia ; if this is indeed the case, then these Australian fossils have important implications for our understanding of marsupial evolution and biogeography.

The Liaoning lagerstätte ( Chaomidianzi formation ) in China provides a glimpse of life in the Early Cretaceous, where preserved remains of numerous types of small dinosaurs, birds, and mammals have been found.

Early in the Cenozoic, following the K-Pg event, the planet was dominated by relatively small fauna, including small mammals, birds, reptiles, and amphibians.

The fossil record shows that monotremes have been present in Australia since the Early Cretaceous 145 – 99 MYA, and that marsupials and placental mammals date from the Eocene 56 – 34 MYA, when modern mammals first appeared in the fossil record.

For example, the dentition of the Early Cretaceous monotreme Steropodon is similar to those of Peramus and dryolestoids, which suggests that monotremes are related to some pre-tribosphenic therian mammals, but, on the other hand, the status of neither of these two groups is well-established.

* Eaton ( 1995 ), " Cenomanian and Turonian ( Early Late Cretaceous ) multituberculate mammals from southwestern Utah ".

* Eaton ( 1995 ), " Cenomanian and Turonian ( Early Late Cretaceous ) multituberculate mammals from southwestern Utah ".

Early Tertiary mammals from North Africa reinforce the molecular Afrotheria clade.

Early fossil reptiles retained the arrangement seen in more primitive vertebrates, but in mammals, the lower surface of the palatine became folded over during evolution, forming the horizontal plate, and meeting in the midline of the mouth.

* Early pregnancy factor, one of the earliest markers of pregnancy in mammals

Early Cycladic culture evolved in three phases, between ca 3300-2000 BCE, when it was increasingly swamped in the rising influence of Minoan Crete.

Early cartridge shotguns also used the SxS action, because they kept the exposed hammers of the earlier muzzle-loading shotguns they evolved from.

Early poems evolved from folk songs such as the Chinese Shijing, or from a need to retell oral epics, as with the Sanskrit Vedas, Zoroastrian Gathas, and the Homeric epics, the Iliad and the Odyssey.

The vast majority of the human population of Scandinavia are Scandinavians, descended from several ( North ) Germanic tribes who originally inhabited the southern part of Scandinavia and what is now northern Germany, who spoke a Germanic language that evolved into Old Norse and who were known as Norsemen in the Early Middle Ages.

Early plants sucked water between the walls of their cells, then evolved the ability to control water loss ( and acquisition ) through the use of stomata.

Early necromancy was related to – and most likely evolved from – shamanism, which calls upon spirits such as the ghosts of ancestors.

The sedimentary basins evolved along the Anza trough during the Late Paleozoic to Early Tertiary times through extension tectonics during the major Gondwanaland breakup.

It is estimated that the family evolved 58 million years ago during the Early Paleogene.

Early station wagons evolved from trucks and were viewed as commercial vehicles ( along with vans and pickup trucks ), not consumer automobiles — with the framing of the early station wagons left unsheathed because of the commercial nature of the vehicles.

It is considered that the two families evolved around 55 millions years ago during the Early Paleogene possibly near the boundary between Paleocene and Eocene.

Early forms of the blues evolved in and around the Mississippi Delta in the late 19th and early 20th centuries.

Early hillbilly also borrowed elements of the blues and drew upon more aspects of 19th-century pop songs as hillbilly music evolved into a commercial genre eventually known as country and western and then simply country.

During the Early Ordovician there was a great increase in the diversity of bivalve species and the dysodont, heterodont and taxodont dentitions evolved.

By that time, however, the group was already present in the Americas and Europe, and it is hypothesized that they actually evolved much earlier, maybe as early as the Early Eocene ( 50 mya ).

Early sound quality of tape recordings was poor but as the C-Cassette technology evolved, with stereo recording, Chromium tapes and noise reduction, soon HiFi quality devices become possible.

It is undeniably of composite origin, drawing on the artistic and technical productions of the classical Greek age, on Jewish music, and inspired by the monophonic vocal music that evolved in the early ( Greek ) Christian cities of Alexandria, Antioch and Ephesus ( see also Early Christian music ).

Early Laserdiscs featured in 1978 were entirely analog but the format evolved to incorporate digital stereo sound in CD format ( sometimes with a TOSlink or coax output to feed an external DAC ), and later multi-channel formats such as Dolby Digital and DTS.

Feudal society was increasingly based on the concept of " lordship " ( French seigneur ), which was one of the distinguishing features of the Early Middle Ages and had evolved out of Late Antiquity.

German Dachs, Dutch das, Norwegian svin-toks ; Early Modern English: dasse ), probably from the PIE root * tek '- " to construct ," so the badger would have been named after its digging of setts ( tunnels ); the Germanic term * þahsu-became taxus or taxō ,-ōnis in Latin glosses, replacing mēlēs (" marten " or " badger "), and from these words the common Romance terms for the animal evolved ( Italian tasso, French tesson / taisson / tasson – now blaireau is more common –, Catalan toixó, Spanish tejón, Portuguese texugo ).

In later Middle English and Early Modern English the þ evolved into a y shape, so that the word was spelled yat ( although the spelling with a th replacing the þ was starting to become more popular ) and the abbreviation for that was a y with a small t above it ( ).

Fossils indicate that the lineage leading to modern Agathis and Wollemia evolved from the common ancestor with Araucaria in the Early Cretaceous in southern Gondwana within climates experiencing cool moist conditions and a strong photoperiod regime.

Middle High German texts are written in the Latin alphabet, in Gothic minuscules that evolved into the Fraktur typefaces of the Early Modern period.

Early land plants had sporophytes that produced identical spores ( isosporous or homosporous ) but the ancestors of the gymnosperms evolved complex heterosporous life cycles in which the spores producing male and female gametophytes were of different sizes, the female megaspores tending to be larger, and fewer in number, than the male microspores.

Amber becomes abundant long after the Carboniferous, in the Early Cretaceous,, when it is found in association with insects.

The Cretaceous is divided into Early and Late Cretaceous epochs or Lower and Upper Cretaceous series.

Rafting by ice of stones into marine environments occurred during much of the Cretaceous but evidence of deposition directly from glaciers is limited to the Early Cretaceous of the Eromanga Basin in southern Australia.

It is estimated that Dioscoreales and its sister clade Pandanales split up around 121 millions of years ago during Early Cretaceous when the stem group was formed.

It lived during the Early Cretaceous, in China, where the first fossil was found in the Junggar Basin.

Fossilized worms have been reported from Early Cretaceous Burmese amber dated to 100 – 110 million years.

Fossil mackerel shark teeth date to the Early Cretaceous.

* Crioceratites elegans, an ammonite species from the Early Cretaceous

In particular Enaliornis, which was apparently an ancestral and plesiomorphic member of that order, was sometimes used to support claims of Albian ( Early Cretaceous ) Gaviiformes.

Not all reefs in the past were formed by corals: those in the Early Cambrian ( 542 – 513 Ma ) resulted from calcareous algae and archaeocyathids ( small animals with conical shape, probably related to sponges ) and in the Late Cretaceous ( 100 – 65 Ma ), when there also existed reefs formed by a group of bivalves called rudists ; one of the valves formed the main conical structure and the other, much smaller valve acted as a cap.

The Early Cretaceous ( Berriasian, around 143 mya ) genus Eurolimnornis from NW Romania was initially believed to be a grebe.

Thus, ocean currents at that time — around the Early Cretaceous — ran radically differently from the way they do today.

At Gantheaume Point and out to sea are dinosaur footprints dated as Early Cretaceous in age ( approximately 130 million years ago ).

From the Early Cretaceous and into Late Cretaceous times the Harz was uplifted in a single block by tectonic movements and, particularly during the Tertiary period, the younger overlying strata were eroded and the underlying base rock left standing as low mountains.