What is chronostratigraphy?
457200
Chronicling the duration of geologic eras via the strata of earth formations.
386794
An equinox (Latin for equal night) is the day/night of 12 hours each that takes place when the sun crosses the Equator on March or Sept. 20 (or close). The solstices are the times when the sun is directly over the Tropic of Cancer  or Capricorn, on June or December 21, plus or minus. It's how we determine our calendar.
764250
it contains a chronograph, aka stopwatch.  The 'chrono' usually refers to an analog watch (the kind with hands) with 3 smaller dials on the inside of the watch face.\n\ntry timex.com
473404
Fossils are the mineralized remains of animals or plants or other traces such as footprints. The totality of fossils and their placement in rock formations and sedimentary layers (strata) is known as the fossil record. The study of fossils is called paleontology.
1180287
time: 1. An epoch, i.e., the designation of an instant on a selected time scale, astronomical or atomic. It is used in the sense of time of day [JP1] 2. On a time scale, the interval between two events, or the duration of an event. 3. An apparently irreversible continuum of ordered events. 4. That which characterizes, or is characterized by, the observed and apparently irreversible continuum of ordered events.
783597
The Sumerian (present day Iraq), Egyptians and Babylonians developed 60 minute hour.\n\nDividing the Day into Hours, Minutes, and Seconds\n\nThe Egyptians and Babylonians decided to divide the day from sunrise to sunset into twelve parts that are called hours. They also divided the night, the time from sunset to sunrise, into twelve hours. But the day and the night are not the same length, and the length of the day and night also changes through the year. This system of measuring the time was not very accurate because the length of an hour changed depending on the time of year. This meant that water clocks had to be adjusted every day.\n\nSomebody finally figured out that by dividing the whole day into 24 hours of equal length (12 hours of the day plus 12 hours of the night), the time could be measured much more accurately.\n\nWhy was the day and night divided into 12 parts? Twelve is about the number of moon cycles in a year, so it is a special number in many cultures.\n\nThe hour is divided into 60 minutes, and each minute is divided into 60 seconds. The idea of dividing the hour and minute into 60 parts comes from the Sumerian sexagesimal system, which is based on the number 60. This system was developed about 4,000 years ago.
132891
All the answers above are correct. It comes from chronos which is greek for the word "time" and logee which is greek for "to write". Thus it basically means the time that has been written (has passed) and stands for the actual amount of time you have existed, as opposed to how 'old' you act in reference to the rest of society (the norm.)
776734
It's called radio-carbon dating.\nhttp://en.wikipedia.org/wiki/Radio-carbon_dating
359031
If we count sundials, we are talking ancients.  Even water clocks and timed candles (with lines on them for how long it burns in an hour) are pretty ancient.
1185970
Okay, I just have to wonder, seriously, what's the difference now?  Calendars are simply tools for humans to measure our man-made construct of time.  In reality, there is no time.
645047
The Dawn definately - The Dawn of times sounds like the dinosaur age! Good Luck!
350913
Try here:\n\nhttp://www.advfilms.com/titles/chronocrusade/
188493
MEZOZOIC, CRETACEOUS AND JURASSIC PERIOD (FROM 125 MILLION YEARS AGO TO 65 MILLION YEARS AGO
161381
Chrono?\n\nGot any of the letters?
95609
An unconformity is a gap in time in rock layers, where erosion occurs while deposition slows or stops. The rocks above an unconformity are younger than the rocks beneath (unless the sequence has been overturned). An unconformity represents time during which no sediments were deposited and the local record for that time interval is missing and geologists must use other clues to discover that part of the geologic history of that area. The interval of geologic time not represented is called a hiatus. There are three types of unconformities: disconformity, nonconformity, and angular unconformity.\n\nDisconformity\nAn unconformity between parallel layers of sedimentary rocks which represents a period of erosion or non-deposition.\n\nNonconformity\nAn unconformity exists between sedimentary rocks and metamorphic or igneous rocks when the sedimentary rock lies above and was deposited on the pre-existing and eroded metamorphic or igneous rock.\n\nAngular Unconformity\nAn unconformity where horizontally parallel strata of sedimentary rock is deposited on tilted and eroded layers that may be either vertical or at an angle to the overlying horizontal layers. The whole sequence may later be deformed and tilted by further orogenic activity.\n\nRetrieved from "http://en.wikipedia.org/wiki/Unconformity"
172822
In English\n"The Paleolithic era is also known as what?\nWhat was it previously called?"
17260
The hour was originally defined in ancient civilisations (including those of Egypt, Sumeria, India and China) as either one twelfth of the time between sunrise and sunset or one twenty-fourth of a full day. In either case the division reflected the widespread use of a duodecimal numbering system (counting with each thumb the spaces between the joints of the other finger on the same hand, i.e. 3 x 4 = 12) and the equally widespread tendency to make analogies among sets of data (12 months, 12 zodiacal signs, 12 main compass points, 12 hours, a dozen).