. . "Silurian"@en . "43177979"^^ . . . . . . . . . . . "The Bertie Group is a geologic group in New York. It preserves fossils dating back to the Silurian period."@en . . . "1238"^^ . . . . . . . "1096180450"^^ . . "Bertie Group"@en . . "The Bertie Group is a geologic group in New York. It preserves fossils dating back to the Silurian period."@en . . "Bertie Group"@en . . .