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Fig. 13 in Diversity in rhynchocephalian Clevosaurus skulls based on CT reconstruction of two Late Triassic species from Great Britain

Fig. 13. The reconstructed braincases of lepidosaur rynchocephalians. A. Clevosaurus cambrica Keeble, Whiteside, and Benton, 2018. B. Clevosaurus hudsoni Swinton, 1939. C. Sphenodon punctatus (from Maisano 2001). In dorsal (A1–C1) and ventral (A2–C2) views. Bones types that are absent in their respective datasets are highlighted in orange.

Fig. 10 in Diversity in rhynchocephalian Clevosaurus skulls based on CT reconstruction of two Late Triassic species from Great Britain

Fig. 10. The reconstructed left mandible of lepidosaur rynchocephalians. A. Clevosaurus cambrica Keeble, Whiteside, and Benton, 2018 (NHMUK PV R37014) from Late Triassic, Pant-y-ffynnon, Wales, UK. B. Clevosaurus hudsoni Swinton, 1939 (NHMUK PV R36832) from Rhaetian, Cromhall Quarry, England, UK. Note: the anterior tip of the dentary is highlighted in blue to indicate where bone is taken from C. cambrica. In lateral (A1, B1), medial (A2, B2), and dorsal (A4, B4) views, simplified reconstruction in medial view (A3, B3).

Fig. 14 in Diversity in rhynchocephalian Clevosaurus skulls based on CT reconstruction of two Late Triassic species from Great Britain

Fig. 14. The reconstructed braincases of lepidosaur rynchocephalians. A. Clevosaurus cambrica Keeble, Whiteside, and Benton, 2018. B. Clevosaurus hudsoni Swinton, 1939. C. Sphenodon punctatus (from Maisano 2001). In posterior (A1–C1) and right lateral (A2–C2) views. Bones types that are absent in their respective datasets are highlighted in orange.

Fig. 15. A in Diversity in rhynchocephalian Clevosaurus skulls based on CT reconstruction of two Late Triassic species from Great Britain

Fig. 15. A size scale comparison of the skulls of lepidosaur rynchocephalians. A. Sphenodon punctatus (from Maisano 2001). B. Clevosaurus cambrica Keeble, Whiteside, and Benton, 2018. C. Clevosaurus hudsoni Swinton, 1939; C3, based on NHMUK PV R36832 (adapted from illustrations by Lavinia Gandolfi). In lateral (A1–C1, C4) and dorsal (A2–C2) views.

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Fig. 4 in Two new late Pleistocene miniature owls from Rancho La Brea, California

Fig. 4. Stereopairs of specimens from late Pleistocene, Rancho La Brea, California, USA referred to miniature owls Asphaltoglaux cecileae sp. nov. (A, C, D) and Glaucidium kurochkini sp. nov. (B). A. Left humerus (RLB K9441) in anterior (A1) and posterior (A2) views. B. Right carpometacarpus (RLB K9404) in dorsal (B1) and ventral (B2) views. C. Right femur (RLB K9349) in anterior (C1) and posterior (C2) views. D. Right coracoid (RLB E9533) in ventral (D1) and dorsal (D2) views. See Fig. 3 for additional labeled osteological features. Abbreviations: artic., articularis; Fac., Facies.

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Fig. 5 in Two new late Pleistocene miniature owls from Rancho La Brea, California

Fig. 5. Scatter plots illustrating the disproportionately large size of the Crista medialis hypotarsi of Asphaltoglaux cecileae sp. nov. A. Length versus width of Fac. plantaris of Crista medialis hypotarsi. B. Width of Crista medialis hypotarsi stem versus tarsometatarsus total length. All measurements in mm.

Fig. 7 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 7. Drawings of first cervical half-rings of Oohkotokia horneri sp. et gen. nov. from the late Campanian Two Medicine Formation of Montana. A. USNM 7943 in dorsal (A) and caudal (A) views. B. TMP 2001.42.19 1 2 in dorsal (B ) and caudal (with left half mirrored) (B ) views.

Fig. 3 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 3. Skull of ankylosaurid dinosaur Oohkotokia horneri gen. et sp. nov. from the late Campanian Upper Two Medicine Formation of Montana, compared with other late Campanian specimens. A. MOR 433, holotype, in ventral (A 1, A 2) and lateral (A 3, A 4) views. The ventral line drawing is based on a cast and shows fragments that are now missing from the actual fossil (see text for explanation). B. CMN 8530, Anodontosaurus lambei from the Horseshoe Canyon Formation of Alberta. C. NSM PV 20381, Oohkotokia horneri from the Two Medicine Formation of Montana. D. USNM 11892, Oohkotokia horneri (reversed) from the Two Medicine Formation, Montana. E. TMP 1991.127.1, Euoplocephalus tutus from the Dinosaur Park Formation of Alberta. F. TMP 2001.42.19, Oohkotokia horneri from the Two Medicine Formation, Montana. G. AMNH 5403,?Euoplocephalus tutus from the lower Dinosaur Park Formation, Alberta.

Fig. 8 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 8. Well preserved tail club of ankylosaurid dinosaur TMP 2001.42.19, referred specimen of Oohkotokia horneri sp. et gen. nov. from the late Campanian Two Medicine Formation of Montana, in dorsal (A) and ventral (B) views. The complete tail club (C); rectangle shows area of photos.

Fig. 6 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 6. Nodosaurid (Group 2; see text) material from the quarry, catalogued as MOR 433, including cervical armour and vertebrae referable to Edmontonia sp. A. Cervical vertebra in cranial (A) and lateral (A) views. B. Ca1 2 dual vertebra in distal view. C.?Third caudal in?distal (C 1) and lateral (C 2) views. D. Phalanx. E. Part of the first cervical half-ring including one distal end, in ventral (E 1) and dorsal (E 2) views; arrows point to bony half-ring layer (see text). F. Partial osteoderm fused to underlying bone. G. Plate from?second half-ring. H. Cervical/pectoral spine in external view. I. Left humerus in caudal view.

Fig. 5 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 5. Sacrum (or sacra) associated with ankylosaurid dinosaur Oohkotokia horneri gen. et sp. nov. (MOR 433, holotype) from the late Campanian Upper Two Medicine Formation of Montana. A. Presacral rod (?) in ventral view. B. Fused neural arches in ventral (B1) and dorsal (B2) views. C, D, H. Sacral ribs in cranial view. E. Dorsosacral (?) centra in dorsal (E1) and ventral (E2) views. F. Nodosaurid sacral fragment. G. Posterior sacrals with reattached?s3 rib in ventral view.

Fig. 1 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 1. Quarry map for holotype of Oohkotokia horneri gen. et sp. nov. (MOR 433) from the late Campanian Upper Two Medicine Formation of Montana, USA.

Fig. 4 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 4. Postcranial material of Oohkotokia horneri gen. et sp. nov. (MOR 433, holotype) from the late Campanian Upper Two Medicine Formation of Montana. A. Partial cervical vertebra in cranial view. B. Well-preserved fourth or fifth free caudal in distal and left lateral view. C. Lateral plate in?ventral and?dorsal view (C1, C2). D. Weakly ribbed subconical osteoderm. E. Oval, low-keeled osteoderm in external view. F. Partial scapula in?lateral view. G. Conical osteoderm in caudal stereo (G1) and cranial (G2) views. H. High-keeled osteoderm in dorsal stereo. I. Smaller conical osteoderm.

Fig. 2 in A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA

Fig. 2. Skull of ankylosaurid dinosaur Oohkotokia horneri gen. et sp. nov. from the late Campanian Upper Two Medicine Formation of Montana, compared with related taxa. A. MOR 433, holotype; stereo pair of high fidelity cast in dorsal view (A 1) with interpretive drawing (A 3); oblique rostrodorsal view of the actual skull (A 2). B. CMN 8530, holotype of Anodontosaurus lambei from the late Campanian–early Maastrichtian Horseshoe Canyon Formation of Alberta. C. CMN 0210, holotype of Euoplocephalus tutus from the late Campanian Dinosaur Park Formation of Alberta. D. TMP 1991.127.1, Euoplocephalus tutus from the late Campanian Dinosaur Park Formation of Alberta. E. AMNH 5403,?Euoplocephalus tutus from the late Campanian Dinosaur Park Formation of Alberta. B–E. Interpretive drawings.

Fig. 8. Recent crustacean Euphausia superba Dana, 1852 in Soft-part preservation in two species of the arthropod Isoxys from the middle Cambrian Burgess Shale of British Columbia, Canada

Fig. 8. Recent crustacean Euphausia superba Dana, 1852 (krill) from Gerlache Strait, Antarctica. A. Left lateral view. B. Dorsal view. C. Detail of stalked eyes after removing head shield. All light micrographs.

Fig. 9 in Soft-part preservation in two species of the arthropod Isoxys from the middle Cambrian Burgess Shale of British Columbia, Canada

Fig. 9. Spiny shields in Recent crustaceans. A. Gnathophausia zoea Willemoes−Suhm 1873 (Malacostraca, Lophogastrida). B. Porcellanid larva (Decapoda). A from http://en.wikipedia.org/wiki/Crustacean; B from www.zooplankton−online.net/gallery.html (courtesy of W.S. Johnson, Goucher College); both used with permission of the copyright holders.

Fig. 5 in Soft-part preservation in two species of the arthropod Isoxys from the middle Cambrian Burgess Shale of British Columbia, Canada

Fig. 5. Bivalved arthropod Isoxys acutangulus (Walcott, 1908), Burgess Shale Formation, middle Cambrian, near Field, British Columbia, Canada (see Fig. 1), general morphology. A. ROM 57902A, headshield in dorsal view without soft parts, note the different angle of the contact between the pleural folds and the cardinal spines, which allows for the position of the stalked eyes. B. ROM 57907A, B; B1, part of unique specimen from WS locality, with eyes, telson and telson flaps; B2, counterpart; B3, line drawing of specimen. C. ROM 57904A; C1, specimen showing paired midgut glands and telson flaps; C2, line drawing of specimen. All dorsoventrally compressed specimens and photographed under polarized light; B2, in water. Midgut glands in gray tone.

Fig. 6 in Soft-part preservation in two species of the arthropod Isoxys from the middle Cambrian Burgess Shale of British Columbia, Canada

Fig. 6. Reconstruction of the bivalved arthropod Isoxys acutangulus (Walcott, 1908), swimming in the water column. Note that the position of the mouth and the attachments of the appendages to the body are conjectural. Not to scale.

Fig. 7. Bivalved arthropod Isoxys longissimus Simonetta and Delle Cave 1975 in Soft-part preservation in two species of the arthropod Isoxys from the middle Cambrian Burgess Shale of British Columbia, Canada

Fig. 7. Bivalved arthropod Isoxys longissimus Simonetta and Delle Cave 1975. Burgess Shale Formation, middle Cambrian, near Field, British Columbia, Canada (see Fig. 1), general morphology. A. USNM 18170, holotype. B. ROM 57910A. C. ROM 57911A. D. ROM 57909A. E. ROM 57908A, B; E1, part of slightly oblique specimen with soft−body preservation, including large eye, telson and some possible exopods; E2, counterpart; E3, line drawing of specimen. F. ROM 57919A. All laterally compressed specimens. A, low angle light from top left; B–F, polarized light.

Fig. 3 in Soft-part preservation in two species of the arthropod Isoxys from the middle Cambrian Burgess Shale of British Columbia, Canada

Fig. 3. Bivalved arthropod Isoxys acutangulus (Walcott, 1908), Raymond Quarry Shale Member, Burgess Shale Formation, middle Cambrian, near Field, British Columbia, Canada (see Fig. 1), general morphology. A. ROM 57898A; A1, specimen showing large stalked eyes and the pair of raptorial frontal appendages; A2, line drawing of specimen. B. ROM 57914A; B1, partially decayed specimen with most of body and appendages rotated towards the front; B2, line drawing of specimen. C. ROM 57899A; C1, specimen with raptorial appendages oriented backwards and possible telson flaps; C2, line drawing of specimen. D. ROM 59871A; D1, considerably decayed specimen showing forward rotation of body and appendage remains; D2, line drawing of specimen. All laterally compressed specimens and polarized light. Midgut glands in gray tone.