Extended Data Fig. 6: Specimen YKLP 11384, a decayed specimen preserved in a dwelling tube.
From: A Cambrian crown annelid reconciles phylogenomics and the fossil record
a, YKLP 11384a (the part), a whole specimen in a dwelling tube. The white arrowheads indicate the tube margin. b, YKLP 11384b (the counterpart), a whole specimen in a dwelling tube. The white arrowheads indicate the tube margin. c, Details of YKLP 11384b, showing putative blood lacuna and gut. The white and black arrowheads indicate the tube and body margins, respectively. d, Same view as in c, but imaged using fluorescence microscopy. Note the thick appearance of the tube margin. e, Detail of YKLP 11384a, showing the preservation of the tube wall, indicated by white arrowheads.
