Eastern Tasmanian languages

Eastern Tasmanian
Oyster Bay – Bruny
Geographic distribution	Eastern coast of Tasmania and interior
Ethnicity	Oyster Bay, Big River, and Bruny tribes of Tasmanians
Extinct	19th century
Linguistic classification	Possibly one of the world's primary language families (see Tasmanian languages)
Subdivisions	Oyster Bay † Bruny (Southeast) †
Language codes
Glottolog	oyst1235  (Oyster Bay) sout1293  (Bruny/Southeast)
Eastern Tasmanian language families per Bowern (2012)   Oyster Bay   Southeast Tasmanian

Eastern Tasmanian is an aboriginal language family of Tasmania in the reconstructed classification of Claire Bowern.^[1]

Bayesian phylogenetic analysis suggests that four (at p < 0.20) to five (at p < 0.15) Eastern Tasmanian languages are recorded in the 26 unmixed Tasmanian word lists (out of 35 lists known). These cannot be shown to be related to other Tasmanian languages based on existing evidence. The languages are:^[2]

Two of the lists reported to be from Oyster Bay contain substantial Northeastern admixture (see Northeastern Tasmanian languages), which Bowern believes to be responsible for several classifications linking the languages of the east coast. However, once that admixture is accounted for, the apparent links disappear.^[1]

The Flinders Island lingua franca was based primarily on Eastern and Northeastern Tasmanian languages.^[3] The English-based Bass Strait Pidgin continued some vocabulary from the lingua franca.^[4] The constructed language Palawa kani is based on many of the same languages as the lingua franca.^[5]