Since the non-avian dinosaurs
The interval since the non-avian dinosaurs marks the time since these dinosaurs disappeared from Earth.
How big is it?
66 Myr
Time · reference interval
A little perspective
Earth is about 68.8 times larger on this measurement.
Earth: Earth is the rocky planet on which we live and the third planet from the Sun.
Measurements, assumptions & sources +
Since the non-avian dinosaurs
A rounded 66 million-year geological interval.
Defined examples — our methodology
The marked time is calibrated. Unmeasured illustration details are representative.
Earth
Mean-radius spherical model for Earth; actual shape is not perfectly spherical.
Defined examples — our methodology
The marked age is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 66 Myr
For comparison, this page uses time. This is labelled reference interval: an explicit comparison model rather than a claim that every example has the same value.
A rounded 66 million-year geological interval.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
Since the non-avian dinosaurs dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 66 Myr | Not recorded | reference interval |
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These links use compatible time records, ordered around the selected value.
Sources and method
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The source records and measurement method remain available for inspection.
There’s always another scale
Follow your curiosity.
TimeBlink of an eye150 msA blink of an eye is the quick closing and opening of the eyelid, usually happening involuntarily.TimeHuman lifetime80 yearsA human lifetime is the span from a person's birth to their death.
TimeAge of Earth4.54 GyrThe age of Earth is the time that has passed since the planet formed from the solar nebula.TimeAge of the universe13.8 GyrThe age of the universe is the time since the Big Bang, marking the beginning of cosmic expansion.
SpaceEarth12,740 kmEarth is the rocky planet on which we live and the third planet from the Sun.
SpaceObservable universe28.21 GpcThe observable universe is the region from which light or other signals have had time to reach us since the early universe.TimeRecorded-history interval5 kyrThe recorded-history interval is the span for which humans have kept written or documented records.TimeA century100 yearsA century is a period of one hundred years.