a bizzare worm with legs from Utah's Wheeler Formation
Walcott (1911) originally described Hallucigenia from the Burgess Shale as an Annelid worm.
Kingdom Animalia, Stem group Onychophora, Clade Hallucishaniids, Family Hallucigeniidae
Recent concensus is that Hallucigenia is a Lobopodian worm, possibly ancestral to modern velvet worms (Phylum Onychophora), and some sources even list as separate Phylum Lobopodia.
Geological Time: Upper Early Cambrian, (~525 million years ago)
Size (25.4 mm = 1 inch): Fossil is 9 mm (curve measure) on a 130 mm by 90 mm matrix.
Fossil Site: Wheeler Formation, Drum Mountains, Millard County, Utah
Fossil Code: HAL01
click to enlarge
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