The graptolite, Sphenoecium wheelerensis, from the Spence Shale site in Utah. KUMIP 514066
#SpenceWeek #Paleontology

Acinocricus stichus is the only species of lobopodians found at the Spence Shale. They are easily distinguished by their spines. KUMIP 491080
#SpenceWeek #Paleontology

This is the holotype of Meristosoma paradoxum (KUMIP 204511). It had a long, segmented body like a millipede with over 30 segments and was 17 cm long.
#SpenceWeek #Paleontology
https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/new-arthropod-meristosoma-more-fallout-from-the-cambrian-explosion/46F22FB2462A354BC4EE44156B5B5231

Over 70% of the Spence Shale species are trilobites such as this Zacanthoides liddelli. Most of the fossils are fragmented but every now and then whole exoskeletons can be found. KUMIP 491808
#SpenceWeek #TrilobiteTuesday
https://pubs.geoscienceworld.org/jgs/article/176/4/609/569244

An ancient worm, Utahscolex ratcliffei, from the Spence Shale Lagerstatte in Utah. Worms are rare at this site and what's more this one has its proboscis preserved. KUMIP 490902 from @KUNHM
#SpenceWeek #Paleontology
https://www.researchgate.net/publication/338955798_Re-description_of_the_Spence_Shale_palaeoscolecids_in_light_of_new_morphological_features_with_comments_on_palaeoscolecid_taxonomy_and_taphonomy

This week we're looking at the Spence Shale in Utah. This is one of the best Cambrian sites in North America and yields many critters, most prominently, trilobites.
#SpenceWeek #paleontology https://pubs.geoscienceworld.org/jgs/article/176/4/609/569244