30191 - Extremely Rare 1.26 Inch Bumastus sp Silurian Trilobite - Indiana USA Gruenewaldtia Albertella sampsoni

Albertella sampsoni

which lived at the middle of the Cretaceous (between the Albian and Cenomanian stages

Zetillaenus

8 mm  //  1

the pleochroic colors being usually green

30191 - Extremely Rare 1.26 Inch Bumastus sp Silurian Trilobite - Indiana USA Gruenewaldtia Albertella sampsoniBumastus, Murchison 1839 (trilobite) Trilobita Corynexochida Illaenidae PaleoDB taxon number: 19516 Parent taxon: Illaenidae according to E. Warburg 1925 See also Jell and Adrain 2002, Raymond 1916 and Sepkoski 2002 Sister taxa: Bumastoides, Caudillaenus, Cryptonymus, Deucalion, Dysplanus, Eastonillaenus, Ectillaenus, Harpillaenus, Hyboaspis, Hydrolaenus, Illaeninae, Illaenus, Nanillaenus, Octillaenus, Panderinae, Parillaenus, Platillaenus,