云南昭通早泥盆世四足形类奇异东生鱼后顶甲及脑颅耳枕区化石兼论早期四足形类脑颅特征演化

卢静, GavinYOUNG, 胡雨致, 乔妥, 朱敏

The posterior cranial portion of the earliest known tetrapodomorph Tungsenia paradoxa and the early evolution of tetrapodomorph endocrania

LU Jing, Gavin YOUNG, HU Yu-Zhi, QIAO Tuo, ZHU Min

Fig. 5 Comparisons of rhipidistian neurocrania in ventral view A. Youngolepis (after Chang, 1982); B. Gogonasus andrewsae (after Long et al., 1997); C. Tungsenia paradoxa; D. Eusthenopteron foordi (after Jarvik, 1980) Abbreviations: art.eth. ethmoid articulation for the palatoquadrate; c.hyp. canal for buccohypophysial duct; c.ju. jugular canal; cr.pend. crista suspendens; f.c.i. foramen for the internal carotid artery; fe.exa. fenestra exonarina anterior; fe.v. fenestra ventralis; gr.a.ci. groove for the internal carotid artery; gr.a.dm. groove for median dorsal aorta; hf.d. dorsal hyomandibular facet; hf.v. ventral hyomandibular facet; ins.bcm. insertion area for the basicranial muscle; P. parasphenoid; sp. space; te.o. orbital tectum For other abbreviations, see Figs. 1 and 2. Not to scale