Fig. 4: Vermiform organisms from the Cabrières Biota.
From: The Cabrières Biota (France) provides insights into Ordovician polar ecosystems
a, Unidentified vermiform organism UCBL-FSL713615, with possible remains of the gut and external ornamentation of tiny nodes. b,c, Incomplete armoured lobopodians UCBL-FSL713616 (b) and UCBL-FSL713617 (c) exhibiting two sclerite plates along an elongated soft body with annulations. A lateral extension in b possibly represents remains of the proximal part of a lobopod (?lo). d,e Close-up three-dimensional lateral (d) and top (e) views of part of UCBL-FSL713617, from the dotted box in c. Arrowheads point to lateral outgrowths associated with annulations that could represent spines or lobopod appendicules. an, annulations; gu, gut; lo, lobopod; otn, ornamentation of tiny nodes; ro, reticulate ornamentation; sp, sclerite plates. Scale bars represent 5 mm in a and c, and 1 mm in b and e; note that due to the three-dimensional rotation, no scale bar is given for d and the reader is instead invited to refer to scale bars in c and e.
