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Figure 7 | BMC Evolutionary Biology

Figure 7

From: The implications of a Silurian and other thylacocephalan crustaceans for the functional morphology and systematic affinities of the group

Figure 7

Jurassic thylacocephalans. A-G. Clausocaris lithographica. A-E. SMNS 67901. A. Overview; B and E mark areas of close-ups. B. Close up of raptorial appendages, setae color-marked. C. Same as B without color-markings. D. Endites on raptorial appendage 2. E. Fan-like muscle attachment areas on raptorial appendages 3. F-G. SMNS 70193/1. F. Endites on raptorial appendage 3. G. Close up of F, showing opposing endites of left and right appendage. H-J. Mayrocaris bucculata, SMNS 70193/5. H. Detail of eye with supposed antennula and antenna (color-marked). I. Same as H, without color-marking. J. Overview; arrow pointing to close-up in H (and I). Abbreviations: a = antennula; a2 = antenna; ce = compound eye; ed = endites; gs = presumed gill structure; m = muscles; ma = muscle attachment areas; ra = raptorial appendage; tr = trunk.

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BMC Ecology and Evolution

ISSN: 2730-7182

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