Pikaia gracilens is an extinct, primitive chordate marine animal known from the Middle Cambrian Burgess Shale of British Columbia.

Apr 8, 2019 · The slender, lancelet-like Pikaia is one of three early fishlike creatures found preserved from the Cambrian period in the geologic record.

Jun 24, 2024 · A new study says scientists were looking at the Pikaia fossil the wrong way. Researchers have long puzzled over the peculiar innards of an ancient sea creature.

Pikaia – from the pika, a small alpine mammal and cousin of the rabbits. Pikas live in the Rocky Mountains, including near the Burgess Shale. gracilens – from the Latin gracilens, “thin, …

The first Cambrian chordate known is Pikaia gracilens, a lancelet-like animal from the Burgess Shale in British Columbia, Canada. The discoverer, Charles Doolittle Walcott, described it as a …

Jun 11, 2024 · The researchers now envision Pikaia as a free-swimming animal that searched for particles of food to eat. It apparently lacked eyes, instead using its tentacles to probe its...

A good possibility is Pikaia, a fossil discovered in the Burgess Shale (Middle Cambrian, about 530 million years old). Pikaia has myotomes and what looks like a notochord, indicating that it is a …

Pikaia was probably a chordate — the same group that includes fish, dinosaurs, and humans! A fossil Pikaia has a visible notochord and myotomes . Photo by Chip Clark, Museum of Natural …

Conway Morris and Caron (2012) have recently published an account of virtually all the available information on Pikaia gracilens, a well-known Cambrian fossil and supposed basal chordate, …

Mar 16, 2024 · Meet Pikaia Gracilens, the first true chordate (precursor to vertebrates) discovered from the Cambrian period. Misunderstood by its discoverer, the famous Burgess Shale patron …