Species Classification: Merostomata

Pterygotus

pterygotus

Pterygotus: Research Database Eurypterida (Chelicerata) · Silurian-Devonian (~425–400 MYA) · Global (Marine)   Research Note: Pterygotus was a large eurypterid (sea scorpion) from the Silurian and Devonian periods. As one of the largest known arthropods, it provides important data on eurypterid evolution and Paleozoic marine ecosystems.   Research Finding Status Grade Year Method Citation Impact … Read more

Megarachne

Megarachne: Research Database Eurypterida (Chelicerata) · Late Carboniferous (~300 MYA) · South America — Uruguay (Piedra Shale)   Research Note: Megarachne was a giant eurypterid (sea scorpion) from the Late Carboniferous of Uruguay. Famous for its initial misidentification as a giant spider, it provides important data on eurypterid diversity and evolution in the Carboniferous of … Read more

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