Hamatolenus Trilobite Positive/Negative Pair
Matrix size of positive: 6" x 5.5" x 0.5" approx.
Specimen size of positive: 2.75" x 1.75" approx.
Matrix size of negative: 5.75" x 5.25" x 0.5" approx.
Specimen size of negative: 2.75" x 1.75" approx.
This Hamatolenus trilobite was split, which resulted in a positive and a negative of the trilobite.
Trilobite, any member of a group of extinct fossil arthropods easily recognized by their distinctive three-lobed, three-segmented form. Trilobites, exclusively marine animals, first appeared at the beginning of the Cambrian Period, about 542 million years ago, when they dominated the seas.