In 1994 Merritt Ruhlen claimed Eurasiatic is supported by the existence of a grammatical pattern "whereby plurals of nouns are formed by suffixing -t to the noun root ... whereas duals of nouns are formed by suffixing -k."

 ...

According to Greenberg, the language family that Eurasiatic is most closely connected to is Amerind. He states that "the Eurasiatic-Amerind

 ...

Merritt Ruhlen suggests that the geographical distribution of Eurasiatic shows that it and the Dené–Caucasianfamily are the result of separate migrations.

 ...

• Ancient North Eurasian#Comparative mythology
• Indo-Semitic languages
• Indo-Uralic languages

 ...

• Bancel, Pierre J.; de l'Etang, Alain Matthey. "The millennial persistence of Indo-European and Eurasiatic pronouns and the origin of nominals". In: In Hot Pursuit of Language in Prehistory: Essays in the four fields of anthropology. In honor of Harold Crane Fleming.

 ...

• NorthEuraLex
• "Indo-Uralic and Altaic" by Frederik Kortlandt (2006)
• Regions Based on Social Structure: A Reconsideration

 ...

^A The 23 words are (listed in order of cognate class size): Thou (7 cognates), I (6), Not, That, To give, We, Who (5), Ashes, Bark, Black, Fire, Hand, Male/man, Mother, Old, This, To flow, To hear,

 ...