FIGURE 1. Anatomical interpretation of Haikouella lanceolata (gen. et sp. nov.) from Haikou, near Kunming.
From the following article:
An early Cambrian craniate-like chordate
Jun-Yuan Chen, Di-Ying Huang and Chia-Wei Li
Nature 402, 518-522(2 December 1999)
doi:10.1038/990080
Abbreviations (also used in Figs 2–4): Abv, anterior branchial vessel; An, anus; Ap, anterior projection; At, atrio; Atp, atriopore; Ba, branchial arches; Baf, branchial–arch–filamental; Br, brain; Buc, buccal cavity; Co, copulatory organ; Cp, caudal project; Da, dorsal aorta; Df, dorsal fin; Ds, denticular structure; Eg, endostyle glands; Es, endostyle; Esp, oesophagus; G, gonad; Hd, head; Ht, heart; It, intestine; Lb, lobated structures; Le, lateral eye; Mg, midgut; Mm, myomeres; Mo, mouth opening; Ms, myosepta; Mw, median wall; Nc, neural cord; Nt, notochord; Ph, pharyngeal cavity; T, tenticle-like structure; Va, ventral aorta; Vf, ventral fin.
