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14 results for “Palaeospinacidae”
Figure 10 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 10. Pelvic girdle of Paraorthacodus jurensis (SMNS 88987/1). A, specimen as preserved. B, cameralucida drawing. Scale bar = 10 mm. Abbreviations: mtp, metapterygium; pb, puboischiadic bar; pop, propterygium; vc, vertebral column.
Figure 7 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 7. Teeth of Paraorthacodus jurensis (SMNS 88987/1). A–B, anterior teeth in labial views. C, anterior teeth in labial (left) and lingual (right) views. D, anterior teeth in lingual views. E–H, lateral teeth in labial views. I–N, lateral teeth in lingual views. O, lateral tooth in basal view. P, lateral tooth in lingual view (left) and posterior tooth in labial view (right). Q–R, posterior teeth in lingual views. S, posterior tooth in labial view (scale bar only for S). All scale bars = 1 mm.
Figure 11 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 11. Vertebral column of Paraorthacodus jurensis. A, vertebra in transverse section displaying the characteristic palaeospinacid calcification of the asterospondylic type (holotype, GPIT 1210/1). Scale bar = 5 mm. B, abdominal vertebrae with preserved haemal arches (SMNS 88987/1). Scale bar = 10 mm.
Figure 6 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 6. Teeth of the holotype of Paraorthacodus jurensis (GPIT 1210/1). A, parasymphysial teeth (outlined) in labial (bottom) and lingual (top) views. B–D, anterior teeth in labial views. E, anterior tooth in laterobasal view. F, lateral teeth of a single row in labial views. G, lateral teeth in laterobasal, lingual, and labial views (from left to right). H, lateral teeth of a single row in labial views. I, lateral teeth in basal (top) and labial (bottom) views. J–K, lateral teeth in labial views. L–M, anteroposterior teeth in linguobasal views. N, anteroposterior tooth in labial view. O, anteroposterior tooth in labiobasal view. P–Q, posterior teeth in lingual views. R–S, posterior teeth in labial views. T, four posterior-most teeth next to the commissure in labial view. Scale bar = 1 mm.
Figure 14 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 14. Diagrammatic sketch of tooth roots of selected synechodontiform sharks in basal view displaying the pseudopolyaulacorhize vascularization pattern (black) and labial root depression (dark grey). A, Welcommia bodeuri, IRSNB P6329. B, Rhomphaidon minor, GPIT without number. C, Sphenodus nitidus, SMNS 80144/5. D, Synechodus dubrisiensis, BMNH 36908 (holotype). E, Paraorthacodus jurensis, GPIT 1210/1 (holotype). Figures not to scale.
Figure 9 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 9. Branchial apparatus and pectoral girdle of Paraorthacodus jurensis (SMNS 88987/1). A, specimen as preserved. B, camera-lucida drawing. Scale bar = 10 mm. Abbreviations: bb, basibranchial; cb, ceratobranchial; ch, ceratohyal; co, coracoid bar; eb, epibranchial; gl, glenoid surface; hb, hypobranchial; hm, hyomandibular; mc, Meckel's cartilage; msc, mesocondyle; msp, mesopterygium; mtc, metacondyle; mtp, metapterygium; phb, pharyngobranchial; poc, procondyle; pop, propterygium; pq, palatoquadrate; scc, suprascapular cartilage; scp, scapular process; stc, sternal cartilage; vc, vertebral column.
Figure 12 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 12. Dorsal fin of Paraorthacodus jurensis (SMNS 88987/1) as preserved and camera-lucida drawing (inset). Scale bar = 10 mm. Abbreviations: bpg, basal pterygiophore; rpg, radial pterygiophore.
Figure 5 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 5. Jaws and hyoid apparatus of Paraorthacodus jurensis (SMNS 88987/1). A, left jaws as preserved. B, camera-lucida drawing of left jaws. C, right jaws as preserved. D, camera-lucida drawing of right jaws. E, hyoid apparatus as preserved. F, camera-lucida drawing of hyoid apparatus. Scale bars = 10 mm. Abbreviations: artcot, articular cotylus; artk, articular knob; artpr, articular process; avlc, anteroventral labial cartilage; ch, ceratohyal; deng, dental groove; denl, dental lamina; denr, dental ridge; ethart, ethmoidal articulation; hm, hyomandibular; mc, Meckel's cartilage; poart, postorbital articulation; pq, palatoquadrate; pvlc, posteroventral labial cartilage; qc, quadrate cavity; qfl, quadrate flange; qjl, lateral quadratomandibular joint; qjm, medial quadratomandibular joint; sym, symphysis.
Figure 4 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 4. Skull and pectoral girdle of Paraorthacodus jurensis (SMNS 88987/1). Scale bar = 10 mm.
Figure 1 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 1. Map showing the geographical location of Nusplingen in south-western Germany.
Figure 3 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 3. Complete articulated specimen of Paraorthacodus jurensis (SMNS 88987/1). Scale bar = 50 mm.
Figure 15 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 15. Tentative reconstruction of upper and lower dentition of Paraorthacodus jurensis displaying the dentition pattern, heterodonty, and sexual dimorphism. A, gender 1 (GPIT 1210/1, holotype). B, gender 2 (SMNS 88987/1). I, parasymphyseal tooth; II–III, anterior teeth; IV–VI, lateral teeth; VII–XI, posterior teeth; XII, commissural tooth. Figures not to scale.
Figure 13 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 13. Caudal fin of Paraorthacodus jurensis (SMNS 88987/1). A, specimen as preserved. B, camera-lucida drawing. Scale bar = 10 mm. Abbreviations: ecr, epichordal rays; ha, haemal arch; hcr, hypochordal rays; hsp, haemal spine; na, neural arch; nsp, neural spine; v, vertebra; vc, vertebral column.
Figure 8 in Skeletal anatomy of the extinct shark Paraorthacodus jurensis (Chondrichthyes; Palaeospinacidae), with comments on synechodontiform and palaeospinacid monophyly
Figure 8. Generalized diagrams depicting the different decreases in crown heights of lateral cusplets. A, exponential decrease (Synechodus). B, linear decrease (Paraorthacodus).
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