Find research datasets worth reusing

opencc-zeroMay 2024View details →

FIG. 2 in Revision of the genus Benthogenia Fisher, 1911 (Asteroidea, Echinodermata), with description of a new species and ossicle anatomy

FIG. 2. — Cribriform organs on the marginals of the disc: A, B, Benthogenia cribellosa Fisher, 1911 MNHN-IE-2019-3848; C, D, Benthogenia mahi n. sp. MNHN-IE-2019-3879. Abbreviations: im, inferomarginals; sm, superomarginals. Scale bars: A, C, 1 cm; B, D, 5 mm.

opencc-zeroMay 2024View details →

FIG. 5 in Revision of the genus Benthogenia Fisher, 1911 (Asteroidea, Echinodermata), with description of a new species and ossicle anatomy

FIG. 5. — Oral frame of Benthogenia cribellosa Fisher, 1911 (A, C) and Benthogenia mahi n. sp. (B, D): A, holotype of Benthogenia cribellosa USNM 28655; B, holotype and Benthogenia mahi n. sp. MNHN-IE-2013-2216; C, MNHN-IE-2019-3848; D, MNHN-IE-2019-3879. Scale bars: 5 mm.

opencc-by-4.0Oct 2017View details →

FIGURE 4. Reproductive anatomy. A in Two New Species of Nudibranch Mollusks from the Tropical Eastern Pacific of Mexico

FIGURE 4. Reproductive anatomy. A. Rostanga ghiselini sp. nov., holotype, CASIZ 220373. B. Tenellia ivetteae sp. nov., paratype, CASIZ 222482. abbreviations: al-albumen gland, am ampulla, bc-bursa copulatrix, ej-ejaculatory portion of vas deferens, fg-female gland mass, me-membrane gland, mu-mucous gland, p-penis, pg-penial gland, pr-prostatic portion of vas deferens, rs-receptaculum seminis, st-penial stylet, v-vagina, vd-vas deferens, vg-vestibular gland. Scale = 1 mm.

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 Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 5. Isolated tooth (Morphotype 2) from the Cerro de los Leones locality, Albian, Lower Cretaceous, Picún Leufú, Argentina. MCF-PVPH-880-1 in labial (A1, A2), lingual (A3, A4), distal (A5, A6), and mesial (A7, A8) views. The basal cross section (A9, A10) is visible due to the natural breaking of the crown.

Fig. 6 in Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 6. Isolated tooth (Morphotype 3) from the Cretaceous Cerro de los Leones locality, Picún Leufú, Argentina. MCF-PVPH-879-2 in labial (A1, A2), lingual (A3, A4), distal (A5, A6), and mesial (A7, A8) views. The basal cross section (A9, A10) is visible due to the natural breaking of the crown.

Fig. 7 in Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 7. Tooth morphotype distribution in ornithocheiriform upper and lower jaw (A) with associated crown size and cross-section variation (B). Example based on Anhanguera piscator (Kellner and Tomida 2000).

Fig. 4 in Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 4. Isolated tooth (Morphotype 1) from the Cerro de los Leones locality, Albian, Lower Cretaceous, Picún Leufú, Argentina. MCF-PVPH-879-8 in labial (A1, A2), lingual (A3, A4), mesial (A5, A6), and distal (A7, A8) views. The basal cross section (A9, A10) is visible due to the natural breaking of the crown.

Fig. 8 in Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 8. Life reconstruction of the Cerro de los Leones pterosaur, displaying the morphological diversity of its dentition based on the observed distribution of the morphotypes. Illustration by Alessio Ciaffi.

Fig. 3 in Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 3. Isolated pterosaur teeth from the Cerro de los Leones locality, Albian, Lower Cretaceous, Picún Leufú, Argentina. Morphotype 1 (H, J, L, N), Morphotype 2 (A, C, M, P, Q, R, S), and Morphotype 3 (B, D, E, G, I, K, O, T). A. MCF-PVPH-739-2. B. MCF-PVPH-741. C. MCF-PVPH-743. D. MCFPVPH-875. E. MCF-PVPH-879-1. F. MCF-PVPH-879-2. G. MCF-PVPH-879-3. H. MCF-PVPH-879-4. I. MCF-PVPH-879-5. J. MCFPVPH-879-6. K. MCF-PVPH-879-7. L. MCF-PVPH-879-8. M. MCF-PVPH-879-9. N. MCF-PVPH-879-10. O. MCF-PVPH-879-11. P. MCFPVPH-880-1. Q. MCFPVPH-880-2. R. MCF-PVPH-880-3. S. MCF-PVPH-880-4. T. MCF-PVPH-880-5. In labial (A–G, I, K, O–Q, S, T), lingual (H, M, N, R), and mesial (J, L) views.

Fig. 2 in Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 2. Stratigraphic column of the Cullín Grande Member (Lohan Cura Formation), Albian, Lower Cretaceous, Cerro de Los Leones, Patagonia, Argentina. Architectural element codes follow Miall 1996: CS, crevasse channel; FF, floodplain fines; LA, lateral accretion; LS, laminated sand sheets; LV, levee; SB, sandy bedforms. Modified from Martinelli et al. 2007 with silhouettes from www.phylopic.org: pterosaur (Anhanguera santanae) silhouette credit of Leon P.A.M. Claessens, Patrick M. O'Connor, David M. Unwin; sauropod (Dreadnoughtus schrani) silhouette by Scott Hartman; theropod Giganotosaurus carolinii) silhouette by Tasman Dixon; crocodile silhouette by B. Kimmel. Anhanguera santanae and Dreadnoughtus schani silhouettes license: https://creativecommons.org/licenses/by-sa/3.0/.

Fig. 1 in Pterosaur teeth from the Southern Neuquén Basin (Patagonia, Argentina): New insights on the reconstruction of ornithocheiriform dental anatomy

Fig. 1. Geographic position of Cerro de los Leones in the Neuquén Basin. A. Map of the Neuquén Basin, showing position of the studied area (asterisk); white dashed line indicates the boundary of the Neuquén Basin; yellow line indicates the boundary between Chile and Argentina. Satellite views of the Cerro de los Leones area showing relation to Picún Leufú (B) and locations (asterisks) of provenance of vertebrate fossils (images from Google Earth).

Figure 12 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy

Figure 12. Right manual ungual phalanx of digit I in A,C, ventral, and B,D, lateral views. A-B, Megaraptor; C-D, Australovenator and schematic representation in E,G, ventral, and F,H, lateral views. E-F, Megaraptor; G-H, Australovenator. Scale bar: 2 cm. Abbreviations: ff, flexor facets.

Figure 10. Right manual phalanx 1 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy

Figure 10. Right manual phalanx 1 of digit I in ventral view and schematic representations of Megaraptor (A, C), Australovenator (B,D). Scale bar: 2 cm. Note the well-developed longitudinal ventral furrow.

Figure 9 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy

Figure 9. Proximal end of right phalanx I.1 of A, Megaraptor; B, Australovenator; C, Allosaurus; D, Tyrannosaurus (modified from Brochu, 2003); and E, Deinonychus (modified from Ostrom, 1969). Not to scale.

Figure 6 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy

Figure 6. Left manus in dorsal view of A, Dilophosaurus (modified from Welles, 1980); B, Allosaurus; C, Megaraptor; D, Sinocalliopteryx; E, Tanycolagreus (modified from Carpenter et al., 2005); F, Deinonychus (modified from Ostrom, 1969); G, Scipionyx (modified from Dal Sasso and Maganuco, 2011); H, Guanlong (modified from Xu et al., 2009); and I, Sinosauropteryx (modified from Currie and Chen, 2001). Not to scale.

Figure 11 in Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy

Figure 11. Right manual ungual phalanx of digit I in ventral view and schematic representation of Megaraptor (A,C); and Australovenator (B,D). Not to scale.