Fig. 2
From: Early Cambrian fuxianhuiids from China reveal origin of the gnathobasic protopodite in euarthropods
Chengjiangocaris kunmingensis from the Cambrian (Stage 3) Xiaoshiba Lagerstätte. a YKLP 12307, articulated specimen in ventral view. b Close-up of area b, showing the laterally expanded hypostome that overlaps the proximal portion of the SPAs, spinose endites (arrowed) of the SPAs are visible as impressions on the overlying hypostome, and the succeeding limbs also possess gnathobases. c Interpretative diagram of b. d Close-up of area d, showing gnathobases preserved on proximal portion of limbs located behind the SPAs, forming a ventral food groove. e Close-up of area e, showing the 3rd to 7th walking legs showing proximal spinose endites (arrowed). f YKLP 12308, ventral view of a nearly complete individual showing the food groove present between the two rows of closely spaced walking limbs. Abbreviations as in Fig. 1
