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Dyassic
Dyassic adj. 
/daɪˈæsɪk/ Permian.
/daɪˈæsɪk/ Permian.ΘΚΠ
the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Permian
poikilitic1832
Permian1841
Dyassic1878
Permic1914
1878 P. H. Lawrence tr. B. von Cotta Rocks Classified (new ed.) 105 Rocks belonging unmistakably to the Rothliegende or Dyassic age.
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as lemmas