Find research datasets worth reusing

opencc-by-4.0Jun 2021View details →

Fig. 2 in The endemic radiodonts of the Cambrian Stage 4 Guanshan Biota of South China

Fig. 2. Amplectobeluid radiodont "Anomalocaris" kunmingensis Wang, Huang, and Hu, 2013, from the Cambrian (Stage 4) Guanshan Biota, Lihuazhuang section, Yunnan, China. YKLP 12414, a pair of frontal appendages and associated oral cone. Abbreviations: la, left appendage; oc, oral cone; om, organic matter; ra, right appendage; w, ecdysozoan worm.

opencc-by-4.0Jun 2021View details →

Fig. 4 in The endemic radiodonts of the Cambrian Stage 4 Guanshan Biota of South China

Fig. 4. Amplectobeluid radiodont "Anomalocaris" kunmingensis Wang, Huang, and Hu, 2013, from the Cambrian (Stage 4) Guanshan Biota, Lihuazhuang section, Yunnan, China. YKLP 12415, a partial frontal appendage. Photograph (A1) and explanatory drawing (A2). Abbreviations: aux, auxiliary spine; ds, dorsal spine; en, endite; pd, podomere; ts, terminal spine.

opencc-by-4.0Jun 2021View details →

Fig. 1. A in The endemic radiodonts of the Cambrian Stage 4 Guanshan Biota of South China

Fig. 1. A. Map of China showing location of the studied area. B. Map showing thirteen sites where fossil assemblages assigned to the Cambrian (Stage 4) Guanshan biota have been found: 1, Dahai (Liu et al. 2012); 2, Shijiangjun (Luo et al. 2008); 3, Xinlongcun (Liu et al. 2016); 4, Wulongqing (Luo et al. 2008); 5, Kanfuqing (Chen et al. 2019); 6, Baimei (Liu et al. 2016); 7, Qiongzhusi (Luo et al. 2008); 9, Dabanqiao (Luo et al. 2008); 10, Changchunshan (Zhao et al. 2020); 11, Gaoloufang (Luo et al. 2008; Hu et al. 2010); 12, Chenggongxincheng (Hu et al. 2013); 13, Lihuazhuang (Jiao et al. 2016; this study). C. The location of the Lihuazhuang section in (asterisk). D. Stratigraphic column showing the occurrence of the fossils reported in this study.

Fig. 5 in New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China

Fig. 5. Artistic reconstruction of Guangweicaris spinatus Luo, Fu, and Hu, 2007 from the lower Cambrian Guanshan Biota, China. Illustration by Xiaodong Wang (Yunnan Zhishui Corporation, Kunming, China).

Fig. 1 in New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China

Fig. 1. Tergal morphology of fuxianhuiid arthropod Guangweicaris spinatus Luo, Fu, and Hu in Luo et al., 2007 from the lower Cambrian Guanshan Biota, China. A. YKLP 11564a, a nearly complete specimen in dorsal view, showing three prothoracic tergites, five opisthothoracic tergites and seven abdominal tergites. B. YIGS Kgs-1-36 (paratype), prothoracic tergites in dorsal view. C. YIGS Kgs-1-37 (paratype), isolated opisthothoracic tergite in dorsal view. D. YKLP 11140, last two prothoracic and five opisthothoracic tergites in lateral view, appendages are detached from the body. E. YKLP 11162b, last prothoracic, five opisthothoracic and first two abdominal tergites in lateral view.

Fig. 4 in New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China

Fig. 4. Carapace and appendages of fuxianhuiid arthropod Guangweicaris spinatus Luo, Fu and Hu, 2007 from the lower Cambrian Guanshan Biota, China. A. YKLP 11201, detached carapace in ventral view and the organization of head appendages (A1); close-up of the head appendages (A2, photograph; A3, explanatory drawing); white arrows, the lateral lobes of the hypostome; black arrow, the possible section in SPA; close-up of the spinose medial margin of the SPA (A4), white arrows indicate the spinose medial margin. B. NIGPAS Kgs-1-137, nearly complete body with well-preserved appendages in lateral view; white arrows, the anterior appendages; black arrows, the appendages belonging to the first and second opisthothoracic segments; white arrowheads, lateral subpentagonal spines of an endopod; black arrowheads, the attachments of the proximal podomeres of appendages. C. YKLP 11202, opisthothoracic appendages in dorsal view; black arrow, the terminal subtriangular podomere; white arrowheads, lateral subpentagonal spines of an endopod; black arrowheads, the attachments of the proximal podomeres of appendages. D. NIGPAS Kgs-6-108 the carapace, antennae and trunk appendages in ventral view (D1), close-up of trunk appendages showing 11 podomeres in the endopod of one biramous appendage (D2), arrowheads point to hollow nodes that indicate the insertions of the spines along the inner margin of the endopod. Images B, C courtesy of Shixue Hu (Chengdu Centre of the Geological Survey of China, Chengdu, China).

Fig. 2 in New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China

Fig. 2. Terminal abdominal tergite and associated structures of fuxianhuiid arthropod Guangweicaris spinatus Luo, Fu, and Hu, 2007 from the lower Cambrian Guanshan Biota, China. A. YIGS Kgs-1-62 (paratype), incomplete abdomen in lateral view. B. NIGPAS Kgs-1-137, nearly complete specimen in lateral view (B1), close-up (B2). Arrows indicate the position of the posteroventral spine. C. YKLP 11566, complete trunk and telson in lateral view C1), close-up (C2), explanatory drawing (C3), white arrows, outer spines; black arrows, inner spines. Image B courtesy of Shixue Hu (Chengdu Centre of the Geological Survey of China, Chengdu, China).

Fig. 5 in Rumen Ciliate Biota of Domestic Cattle (Bos taurus taurus) in İstanbul, Turkey and Infraciliature of Metadinium medium (Entodiniomorphida, Ophryoscolecidae)

Fig. 5. Photomicrographs of D. dogieli. a, b – in MFS and Lugol's iodine from the right side. CV – contractile vacuole, MA – macronucleus, MI – micronucleus. Narrow longitudinal thickening of the pellicle (arrowhead).

Fig. 4 in Rumen Ciliate Biota of Domestic Cattle (Bos taurus taurus) in İstanbul, Turkey and Infraciliature of Metadinium medium (Entodiniomorphida, Ophryoscolecidae)

Fig. 4. SEM images of Diplodinium dogieli. a – from the left side, b – from the right side, c – from the right side in binary fission. AL – adoral lip, DCZ – dorsal ciliary zone, DL – dorsal lip, O – operculum. Narrow longitudinal thickening of the pellicle (arrowheads).

Fig. 3 in Rumen Ciliate Biota of Domestic Cattle (Bos taurus taurus) in İstanbul, Turkey and Infraciliature of Metadinium medium (Entodiniomorphida, Ophryoscolecidae)

Fig. 3. Photomicrographs of M. medium in binary fission from the right side, after pyridinated silver carbonate impregnation. AP – adoral polybrachykinety, DAP – dorso-adoral polybrachykinety, DP – dorsal polybrachykinety, DPR – dorsal primordium, KL – kinety loop, LP – left primordium, NP – narrow polybrachykinety between ventral and right primordia, PK – paralabial kineties, RPR – right primordium, VP – vestibular polybrachykinety, VPR – ventral primordium.

Fig. 1 in Rumen Ciliate Biota of Domestic Cattle (Bos taurus taurus) in İstanbul, Turkey and Infraciliature of Metadinium medium (Entodiniomorphida, Ophryoscolecidae)

Fig. 1. Schematic figure of infraciliature of Metadinium medium from the right side, after pyridinated silver carbonate impregnation. AP – adoral polybrachykinety, DAP – dorso-adoral polybrachykinety, DP – dorsal polybrachykinety, KL – kinety loop, PK – paralabial kineties, VP – vestibular polybrachykinety.

FIGURE 8 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 8. Diagrammatic reconstructions of Fengzhengia mamingae gen. et sp. nov. A, dorsal view; B, lateral view. The scale bar is 5 mm. Abbreviations: as, medial axial spines; en, endopod; ex, exopod; hl, frontal head limb; hs, head shield; lae, left eye; pyg?, putative pygidium; rae, right eye; tf, tail fan; t1, tergite 1; t9, tergite 9; t15, tergite 15. Morphological details of the tail fan were partially inferred from Kylinxia zhangi Zeng, Zhao, and Huang in Zeng et al., 2020.

FIGURE 7 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 7. Consensus trees from Bayesian (left) and parsimony (right) analyses of panarthropod relationships based on a matrix of 283 characters and 84 taxa with deutocerebral frontal-most appendages inferred. A, 50% majority-rule consensus tree from a Bayesian analysis; B, strict consensus of a single most parsimonious tree of 54.38597 steps (consistency index = 0.48; retention index = 0.86) from a parsimony analysis using implied character weighting (concavity constant k = 3). In the parsimony analysis Fengzhengia mamingae gen. et sp. nov. is retrieved as the sister taxon to the early branching deuteropod Kylinxia zhangi Zeng, Zhao, and Huang in Zeng et al., 2020. In the Bayesian analysis F. mamingae is resolved as a deuteropod that bridges between K. zhangi and all other deuteropods. Abbreviations: D, Deuteropoda; P, Panarthropoda; T, total-group Euarthropoda.

FIGURE 6 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 6. Fengzhengia mamingae gen. et sp. nov. (YKLP 11431). A-B, tungsten photography and fluorescent photography lighting of putative pygidium and tail fan, respectively; C, interpretive line drawing of the same. All scale bars are 1 mm. Abbreviations: cw, compression wrinkles; en?, putative endopod podomeres; ex?, putative exopod(s); ps?, putative pygidial segment(s); pyg?, putative pygidium; tf, tail fan; tfm?, perceived margin of tail fan; t15, tergite 15.

FIGURE 5 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 5. Fengzhengia mamingae gen. et sp. nov. (YKLP 11431). A, part (boxed regions are shown in E-J); B, counterpart (boxed regions are shown in C-D); C, tungsten photography lighting of head region in B; E, posterior body region from A; G, trunk tergites from A; I, head region from A; D, F, H, J, fluorescent photography lighting of the same. Arrowheads indicate medial axial spines. Scale bars are 5 mm (A-B, I-J); 2 mm (C-H). Abbreviations: asc?, putative anterior sclerite; cw, compression wrinkle(s); ed, endite(s); en?, putative endopod; es, eye stalk(s); hs, head shield; lae, left eye; p1-p6, podomeres 1 through 6; ps?, putative pygidial segment(s); pyg?, putative pygidium; rae, right eye; rm, rim of eye; sh, shaft of frontal head limb; tf, tail fan; t1, tergite 1; t7, tergite 7; t15, tergite 15.

FIGURE 4 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 4. Fengzhengia mamingae gen. et sp. nov. (YKLP 11431b). A-B, lateral view (stereo pair) of the counterpart (stereo images have a tilt of 20˚ to emphasise topographic differences); C, composite line drawing of the same. All scale bars are 5 mm. Abbreviations: es, eye stalk(s); ex?, putative exopod(s); hl, frontal head limb; hs, head shield; lae, left eye; t8, tergite 8.

FIGURE 3 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 3. Fengzhengia mamingae gen. et sp. nov. (YKLP 11431a). A-C, tomographic models of the part. The specimen is orientated with the anterior facing left. All scale bars are 5 mm. The blue arrowheads point to the tergopleural terminus of the third trunk segment and, the red arrowheads indicate the paddle-shaped exopods of trunk limbs 1-3 — transverse sections through flattened lobate exopods that clearly extend beyond the tergopleural termini, and white arrowheads indicate exopod setae. Abbreviations: 1, trunk exopod 1; 2, trunk exopod 2; 3, trunk exopod 3.

FIGURE 1 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 1. Fengzhengia mamingae gen. et sp. nov. (YKLP 11431a). A-B, lateral view (stereo pair) of the part (stereo images have a tilt of 20˚ to emphasise topographic differences); C, composite line drawing of the same. All scale bars are 5 mm. Abbreviations: ist, indeterminate soft tissue; cw, compression wrinkle(s); en?, putative endopod podomere(s); es, eye stalk(s); ex?, putative exopod(s); gr, groove; hs, head shield; lae, left eye; ps?, putative pygidial segment; pyg?, putative pygidium; rae, right eye; tf, tail fan; tfm?, perceived margin of tail fan; t1-15, tergites 1 through 15.

FIGURE 2 in A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota

FIGURE 2. Fengzhengia mamingae gen. et sp. nov. (YKLP 11431a). A, lateral view of the part; B-C, tomographic models of the part — lateral view of the part with the matrix partially removed digitally and lateral view of the part with the matrix further removed digitally, respectively. All scale bars are 5 mm. Blue and white arrowheads point to the tergopleurae of the third trunk segment and black and red arrowheads indicate the paddle shaped exopods of trunk limbs 1-3.