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Figure 2 | BMC Evolutionary Biology

Figure 2

From: Morphology and function in the Cambrian Burgess Shale megacheiran arthropod Leanchoilia superlata and the application of a descriptive matrix

Figure 2

Leanchoilia superlata Walcott, 1912, general body shape. A, ROM 61896, ventral view with appendage preservation, note the serration of the cephalic (head) shield and tergo-pleurae; B, ROM 61891, dorsal view, showing the narrow axial region, arrows mark border between axial region and tergo-pleurae; C, ROM 61884, dorsal view with great appendages, image flipped horizontally; D, ROM 61882, lateral view of rather complete specimen in supposed life position, less well preserved area at the lateral margin of the axial region indicates the former horizontal position of the tergo-pleurae; E, ROM 61909, rather “translucent” preservation of the specimen emphasizes the slenderness of the central body region compared to the long tergo-pleurae, image flipped horizontally; abbreviations: ap = appendage; ar = axial region; ca = carinae; cs = cephalic shield; ga = great appendage; rs = rostrum; te = telson; tp = tergo-pleura; tr = trunk; w = wing.

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