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Holocene

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altithermal

altithermal  

1 In general, any period of high temperature.2 Often used to refer specifically to a period of time in the mid‐Holocene, between about 4000 and 8000 years ago, when the climate was generally warmer ...
Anthropogene

Anthropogene  

The name that is sometimes given informally to the Holocene, since this is the time during which human activity has significantly altered the natural environment.
anthropogenic indicator

anthropogenic indicator  

An organism, usually present as a fossil, that indicates the past involvement of human activity. An example is the pollen of the herbs Plantago lanceolata (ribwort) or Ambrosia species (ragweeds), ...
Castlecliffian

Castlecliffian  

A series (0.01143–1.1 Ma ago) in the Quaternary of New Zealand, underlain by the Nukumaruan, overlain by the Holocene, and roughly contemporaneous with the uppermost Calabrian and Emilian Stages, and ...
Chaetodermatida

Chaetodermatida  

(class Amphineura, subclass Aplacophora)An order of aplacophorans which lack a ventral groove. The simple, bell-shaped mantle cavity contains a pair of, or several, true gills. Individuals are ...
Climate Change and Societal Development

Climate Change and Societal Development  

The many rapid and severe climate changes of the Quaternary have affected humans in many parts of the world (Table 1). Changes during the Upper Miocene (6–8 million years ago) ...
climatic optimum

climatic optimum  

Period of highest prevailing temperatures since the last ice age, in most parts of the world about 4 000–8 000 years ago.
coccolithophorids

coccolithophorids  

(phylum Prymnesiophyta)A group of unicellular, marine, planktonic algae which are, at least at some stage in their life cycle, covered in calcareous plates (coccoliths) embedded in a gelatinous ...
Devensian Stage

Devensian Stage  

Reference type:
Overview Page
Subject:
Archaeology
[Ge]A group of deposits representing a geostratigraphic stage within the Pleistocene series of the British Quaternary System, dating to the period betwen 120 000 and 10 000 years ago. The Devensian ...
Domestication of Plants

Domestication of Plants  

Reference type:
Overview Page
Subject:
Archaeology
Soon after the end of the Pleistocene, the appearance of domesticated plants marked a fundamental change in the relationship between plants and people throughout much of the world. These domesticated ...
epoch

epoch  

An interval of geological time; several epochs form a period, several periods an era. An epoch is ranked as a third-order time unit (M. Allaby2006).
eustasy

eustasy  

The world-wide changing of sea level caused either by tectonic movements, or by the growth or decay of glaciers (glacio-eustasy, or glacio-eustastism).
Flandrian

Flandrian  

The present interglacial, during which there has been a global rise in sea level—the Flandrian transgression, caused by the melting of ice sheets and glaciers (Smith et al. (2006) ESPL 8, 5). The ...
global warming

global warming  

The gradual increase in the overall temperature of the earth's atmosphere due to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.
Hallian

Hallian  

The last of two stages (5.5–0.1Ma ago) in the Pleistocene of the west coast of N. America, underlain by the Wheelerian, overlain by the Holocene, and roughly contemporaneous with the Upper ...
hunting and gathering

hunting and gathering  

Reference type:
Overview Page
Subject:
Archaeology
A form of society with no settled agriculture, or domestication of animals, and which has little impact on the environment. The hunting of animals and the collection of edible plants depend on ...
hydrostratigraphic units

hydrostratigraphic units  

Sections of a geological formation that exhibit similar hydraulic properties (see hydrogeology), regardless of their composition. These units may be very extensive. The region of Alberta containing ...
interglacial

interglacial  

Period of warmer climate that separates two glacial periods. Mid-latitude interglacials show a characteristic sequence of vegetation change. Pollen of heathy tundra is replaced in the pollen record ...
Little Ice Age

Little Ice Age  

A period between about 1550 and 1860 during which the climate of the middle latitudes became generally harsher and there was a world-wide expansion of glaciers. The effects have been recorded in the ...
Mammutidae

Mammutidae  

; order Proboscidea, suborder Mammutoidea)An extinct, monospecific family (Mammut or Mastodon) of mastodons, comprising elephant-like animals that diverged from the evolutionary line leading to the ...

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