Jurassic squid-like animal unearthed in Wyoming is “fattest” ever discovered
Researchers have identified a new species of ancient squid-like animal, Wyoteuthis linsterorum, based on fossils discovered in Wyoming. The species is notable for having the thickest, most barrel-shaped rostrum ever recorded for a belemnite.
Why it matters
This discovery provides new insights into the evolutionary history and diversity of ancient marine life in the Sundance Formation.
An international team of researchers has described a new “peculiar” species of a squid -like animal, following the discovery of two exceptionally rare fossils in Wyoming, USA. The research is published in the journal Papers in Palaeontology.
Belemnites, ancient cousins of modern squids and octopuses, are among the most common fossils found worldwide. Millions have been discovered in Wyoming’s Sundance Formation, an ancient inland sea that once covered western USA. But the latest discovery stands out, with scientists describing it as the “fattest belemnite ever discovered.”
Most belemnites unearthed in Wyoming measure around 5–10cm long and 1–2cm wide. By contrast, the newly named species, Wyoteuthis linsterorum, has an unusually broad, barrel-shaped rostrum around 10cm long and up to 6cm wide – making it the thickest belemnite ever recorded.
Researchers estimate the living animal could have reached around 60cm in total length, including its arms.
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