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Fig. 11 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 11. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Detail of posterior end of mandibular symphysis. Photograph (A1), interpretive drawing (A2), light grey, broken bone; dark grey, matrix.

Fig. 9 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 9. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Mandible in right lateral (A1, A2) and medial (A3, A4) views. Photographs (A1, A3), interpretive drawings (A2, A4), light grey, broken bone; mid grey, filler; dark grey, matrix.

Fig. 7 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 7. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Mandible in dorsal view. Photograph (A1), interpretive drawing (A2), light grey, broken bone; mid grey, filler; dark grey, matrix.

Fig. 6 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 6. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Detail of right ventral orbital margin in lateral view. Photograph (A1), interpretive drawing (A2), light grey, broken bone.

Fig. 14 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 14. Phylogenetic topology for Pliosauridae, focussing on Early–Middle Jurassic representatives, based on Bayesian Mkv analysis. Numbers indicate posterior support for nodes demonstrating strong support for many aspects, but weaker support for relationships among Peloneustes philarchus, Anguanax zignoi, and Eardasaurus powelli gen. et sp. nov., which are tentatively recovered as grade leading to more derived pliosaurids.

Fig. 5 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 5. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Cranium in ventral view. Photograph (A1), interpretive drawing (A2), light grey, broken bone; mid grey, filler; dark grey, matrix.

Fig. 3 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 3. Holotype of the pliosaurid pleasiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Cranium in right lateral view. Photograph (A1), interpretive drawing (A2), light grey, broken bone; mid grey, filler; dark grey, matrix; detail showing region around external naris including frontal–maxilla suture (A3).

Fig. 8 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 8. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Mandibular symphysis in dorsal (A1, A2), left lateral (A3, A4), and ventral (A5, A6) views. Photographs (A1, A3, A5), interpretive drawings (A2, A4, A6), light grey, broken bone; mid grey, filler; dark grey, matrix.

Fig. 2 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 2. Holotype of the pliosaurid pleasiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Cranium in dorsal view. Photograph (A1), interpretive drawing (A2), light grey, broken bone; mid grey, filler; dark grey, matrix.

Fig. 1 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 1. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Photograph of the specimen on display in OUMNH. Skeleton laid out as discovered, with the exception of the left hindlimb (highlighted in black), which was originally disarticulated. An artist's reconstruction of E. powelli is partially visible in the top right-hand side of the image.

Fig. 13 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 13. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. A. Mesial tooth in anterior or posterior (A1), lingual (A2), anterior or posterior (A3), and labial (A4) views; close-up of crown of tooth showing detail of "carinae" in anterior or posterior (A5–A6), labial (A7), and tip (A8) views. B. Distal ("ratchet" type) tooth in anterior or posterior (B1), lingual (B2), anterior or posterior (B3), labial (B4), and tip (B5) views.

Fig. 10 in A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

Fig. 10. Holotype of the pliosaurid plesiosaur Eardasaurus powelli gen. et sp. nov. (OUMNH PAL-J.2247) from the Middle Jurassic of Yarnton, Oxfordshire, UK. Detail of right coronoid eminence in lateral view. Photograph (A1), interpretive drawing (A2), light grey, broken bone; dark grey, matrix.

Fig. 7 in The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Fig. 7. Cladogram from the maximum likelihood rapid bootstrap analysis with bootstrap support values for each node.

Fig. 5 in The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Fig. 5. Amiid fish Amia sp., USNM 618000, from the Spring Site, Montana, USA; the Kishenehn Formation's Coal Creek Member, 43.5 Ma (Eocene). Dentary in left anterolateral view; three-dimensional model (A1), illustration with elements labeled, coronoid teeth outlined and indicated by arrows (A2). The letter following the anatomical abbreviation denotes the left (-l) element. Abbreviations: d, dentary; dsp, dermosphenotic; fr, frontal; l, lacrimal; n, nasal; po1, postinfraorbital.

Fig. 4 in The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Fig. 4. Amiid fish Amia sp., USNM 618000, from the Spring Site, Montana, USA; the Kishenehn Formation's Coal Creek Member, 43.5 Ma (Eocene). Skull in right ventrolateral view; three-dimensional model (A1), illustration with labeled elements (A2). The letter following the anatomical abbreviation denotes the left (-l) or right (-r) element. Abbreviations: ang, angular; ar, posterior articular element; bb, basibranchial; bop, branchiopercle; br, branchiostegal rays; cb, ceratobranchials; cl, cleithrum; d, dentary; dpt, dermopterotic; g, gular; hb, hypobranchials; l, lacrimal; m, mentomeckelian; mx, maxilla; n, nasal; op, opercle; pa, parietals; pmx, premaxilla; po1, po2, postinfraorbitals 1, 2; pop, preopercle; rar, retroarticular; ro, rostral; smx, supramaxilla; so, subinfraorbitals; sop, subopercle.

Fig. 2 in The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Fig. 2. Amiid fish Amia sp., USNM 618000, from the Spring Site, Montana, USA; the Kishenehn Formation's Coal Creek Member, 43.5 Ma (Eocene). A. Shale-imbedded skull in right ventrolateral view. B. Post-crania with the anterior end on the left. C. Three-dimensional model of the entire skeleton from left dorsolateral view. Abbreviations: cop, coprolite; mtg, metapterygium; pb, pelvic bone; pcfr, pectoral fin rays; pfr, principal fin rays; pp, parapophyses; ps, first pelvic fin ray; pvfr-l, left pelvic fin rays; rfr, rudimentary fin rays.

Fig. 6 in The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Fig. 6. Amiid fish Amia sp., USNM 618000, from the Spring Site, Montana, USA; the Kishenehn Formation's Coal Creek Member, 43.5 Ma (Eocene). Tail in left-lateral view; three-dimensional threshold model (A1), explanatory drawing with labeled elements (A2). Vertebral centra 61–68 are represented as impressions in the shale (see SOM: fig. S3). Abbreviations: ep, epurals; epx, epaxial; ha, haemal arch; hpx, hypaxial; hs, haemal spines; hyp1, hyp2, hypurals 1, 2; ihm, infrahaemal; na, neural arches; nsap, anterior process of neural spine; u1, u8, ural centra 1, 8.

Fig. 1 in The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Fig. 1. Google Earth images showing the location of the USNM 618000 discovery site ("Spring Site") within Montana (A) and among other shale-bearing middle sequence localities (B). The Spring Site is located on the south bend of the river. Picture of the upper Spring Site showing where USNM 618000 was discovered (C).

Fig. 3 in The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Fig. 3. Amiid fish Amia sp., USNM 618000, from the Spring Site, Montana, USA; the Kishenehn Formation's Coal Creek Member, 43.5 Ma (Eocene). Skull in left dorsolateral view; three-dimensional model (A1), illustration with labeled elements (A2). The letter following the anatomical abbreviation denotes the left (-l) or right (-r) element. Abbreviations: ar, posterior articular element; cl, cleithrum; d, dentary; dpt, dermopterotic; dsp, dermosphenotic; es, extrascapular; fr, frontal; le, lateral ethmoid; n, nasal; op, opercle; pa, parietals; pla, anterior parietal pit line; pmx, premaxilla; po1, po2, postinfraorbitals 1, 2; rar, retroarticular; ro, rostral; so, subinfraorbitals; sop, subopercle; C1, C2, vertebral centra 1, 2.