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Glite Dictionary
allochronic

allochronic

9.9
Existing at different times in Earth's history
  • adjective
  • /ˌæləˈkrɒnɪk/
  • Specialized
: alocronico
  • The two species are considered allochronic because they lived during different geological periods.

Examples

  • Fossil records help paleontologists determine whether similar organisms are allochronic or contemporaneous.

  • Although their anatomy is similar, the birds are allochronic in origin, separated by millions of years.

  • The fossils found in this region are allochronic.

  • Are these species allochronic or coexisting?

  • Fossil records help paleontologists determine whether similar organisms are allochronic or contemporaneous.

  • The two species are considered allochronic because they lived during different geological periods.

  • Although their anatomy is similar, the birds are allochronic in origin, separated by millions of years.

Antonyms

synchronous
8 7.4

Happening at the same time as something else

contemporaneous
7 8.4

Happening at the same time as another thing

How Time-Separated

allochronic
  • Specialized
9.9
diachronic
  • Specialized
1 9.6
synchronous
8 7.4

Surface Forms

allochronic positive

Morphology

allochronic = chronic (semi-transparent) = allo + chronic

Formation 'allo-' (other) + 'chronic' (time-related) is regular, but 'chronic' commonly means 'long-lasting', which may mislead learners about the precise sense 'occurring at different times'.

Etymology

Allochronic comes from Greek parts allo- meaning 'other' and chron- meaning 'time', the same root you see in chronological. So allochronic literally means 'at other times', which is why scientists use it for groups that lived in different times in Earth's history.