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1,088 results for “Bivalves”
Figure 13 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 13. Stereophotos of cardinal areas of hinges of right valves. A, Vepricardium multispinosum (ANSP 54220): ac shape 3, pc shape 0. B, Dinocardium robustum (FMNH 278011): ac shape 0, pc shape 0. C, Chesacardium laqueatum (FMNH UC7082): ac shape 7, pc shape 0. All scale bars = 10 mm.
Figure 12 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 12. Stereophotos of cardinal areas of hinges of right valves. A, Cardium costatum (ANSP 54110): ac shape 4, pc shape 1. B, Bucardium ringens (UMMZ 24727): ac shape 5, pc shape 1. C, Acanthocardia (Acanthocardia) aculeata (UNC 15376): ac shape 6, pc shape 1. D. Acanthocardia (Rudicardium) tuberculata (ANSP 53195): ac shape 6, pc shape 1. Scale bars: A = 5 mm; B−D = 10 mm.
Figure 10 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 10. External views of right valves. A, Hedecardium (Hedecardium) waitakiense (DSIRGS 10837), hedeform shell shape. Scale bar = 10 mm. B, Freneixicardia verrucosa (NHM L7962), circular shell shape. Scale bar = 5 mm. Arrow indicates set of imbricated spines.
Figure 11 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 11. Internal views of right valves. A, Cardium costatum (ANSP 54110). Note strong internal expression of radial ribs, absence of impression of adductor muscle scars. Scale bar = 10 mm. B, Plagiocardium granulosum (ANSP 6268). Scale in cm indicated in figure. C, Orthocardium porulosum (ANSP 6266). Scale bar = 10 mm. In B and C, radial ribs expressed internally only at shell margin; adductor muscle scars impressed. Only anterior adductor muscle scar labelled; posterior adductor muscle scar equally well-impressed into shell, but not readily visible in these views due to foreshortening.
Figure 8. A in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 8. A, Afrocardium exochum (ANSP 293709), exterior of right valve, circular shell shape. B, Loxocardium obliquum (FMNH PE 3642), exterior of right valve, loxoform shell shape. C, Schedocardia hatchetigbeense (USNM 645087), exterior of left valve, schediform shell shape. Scale bars: A = 1 mm; B, C = 10 mm.
Figure 9 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 9. External views of right valves. A, Europicardium multicostatum (NHM PI TB5), europiform shell shape. B, Dinocardium robustum (ANSP 186595), dinoform shell shape. C, Vepricardium multispinosum (ANSP 54220), circular shell shape. D, Bucardium ringens (ANSP 54234), circular shell shape. All scale bars = 10 mm.
Figure 7 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 7. External views of right valves. A, Agnocardia spinosifrons (USGS 26439), circular shell shape. B, Plagiocardium granulosum (ANSP 6268), oval shell shape. C, Granocardium kuemmeli (AMNH 45042), ovate shell shape. D, Acanthocardia (Acanthocardia) aculeata (ANSP 54235), cardiiform shell shape. E, Orthocardium porulosum (ANSP 6266), circular shell shape. Scale bars: A, C−E = 10 mm; B = 5 mm.
Figure 4 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 4. External anatomy of right side of cardiids. A, Dinocardium robustum (LACMNH 50–53.2), scale bar = 10 mm. B, Bucardium ringens (NHM Acc. no. 2322), scale in cm indicated on figure.
Figure 6 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 6. External views of right valves. A, Cardium costatum (ANSP 54110), cardiiform shell shape. B, Nemocardium bechei (ANSP 252661), quadrate-short shell shape. C, Planicardium virginianum (USNM 2831), planiform shell shape. All scale bars = 10 mm.
Figure 3. Shell ontogeny. A in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 3. Shell ontogeny. A, Chesacardium laqueatum (FMNH UC7082), B, Chesacardium laqueatum (FMNH PE3523). C, D, Planicardium virginianum (UNC 11856). All scale bars = 10 mm.
Figure 1 in Phylogeny of cardiid bivalves (cockles and giant clams): revision of the Cardiinae and the importance of fossils in explaining disjunct biogeographical distributions
Figure 1. Phylogenetic hypothesis of stem group eucardiids, from Schneider (1998a). The representatives of the ingroup in the present study (Schedocardia, Hedecardium, Orthocardium, Loxocardium, Sawkinsia and Plagiocardium) formed a paraphyletic group.
Figure 50. Pseudogaleomma japonica. A in Galeommatid bivalves from Phuket, Thailand
Figure 50. Pseudogaleomma japonica. A, living animal in left side view, dotted line indicating outline of shell. B, left valve in internal view. Left (C) and right valve hinge (D) showing prodissoconch II and resilifer of internal ligament (black). Scale bars: A = 5 mm, B = 3 mm, C, D = 500 Mm.
Figure 48 in Galeommatid bivalves from Phuket, Thailand
Figure 48. Galeomma phuketi sp. nov. A, left valve in internal view. Left (B) and right valve hinge (C) showing prodissoconch II and resilifer of internal ligament (black). Scale bars: A = 3 mm, B, C = 1000 Mm.
Figure 45. Galeomma ambigua. A in Galeommatid bivalves from Phuket, Thailand
Figure 45. Galeomma ambigua. A, living animal in left side view, dotted line indicating outline of shell. B, left valve in internal view. Hinges of small (C, D) and large (E, F) specimens. C, E, left and D, F, right valve hinge showing prodissoconch II and resilifer of internal ligament (black). Scale bars: A, B = 5 mm, C-F = 1000 Mm.
Figure 47 in Galeommatid bivalves from Phuket, Thailand
Figure 47. Galeomma ambigua. Live specimen seen from the dorsal (A) and the left side. Scale bars = 5 mm.
Figure 41 in Galeommatid bivalves from Phuket, Thailand
Figure 41. Shell structure (in transparency) of Galeomma layardi (A) and G. ambigua (B, C). Scale bars = 50 Mm.
Figure 36 in Galeommatid bivalves from Phuket, Thailand
Figure 36. Scintilla papillosa sp. nov. A, living animal in left side view, dotted line indicating outline of shell. B, left valve in internal view. Left (C) and right valve hinge (D) showing prodissoconch II and resilifer of internal ligament (black). Scale bars: A, B = 3 mm, C, D = 500 Mm.
Figure 38 in Galeommatid bivalves from Phuket, Thailand
Figure 38. Nudiscintilla glabra gen. et sp. nov. holotype: A, living animal in left side view, dotted line indicating outline of shell. B, left valve in internal view. Left (C) and right valve hinge (D) showing prodissoconch II and resilifer of internal ligament (black). Scale bars: A, B = 3 mm, C, D = 500 Mm.
Figure 51 in Galeommatid bivalves from Phuket, Thailand
Figure 51. Ephippodonta (Ephippodonta) gigas (A-C) and Aclistothyra orientalis sp. nov. (D-F). A & D, dorsal view of animal, anterior end at the top. B & E, left valve seen from outside. C, hinge viewed from inside, left valve above. F, right valve hinge. Scale bars: A, B, D, E = 5 mm, C, F = 1000 Mm.
Figure 34 in Galeommatid bivalves from Phuket, Thailand
Figure 34. Scintilla unicornia sp. nov. A, living animal in left side view, dotted line indicating outline of shell. B, left valve in internal view. Left (C) and right valve hinge (D) showing prodissoconch II and resilifer of internal ligament (black). Scale bars: A, B = 3 mm, C, D = 500 Mm.
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