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46 results for “Pectinoidea”
FIG. 1. — Parvamussium orbiculatum n in New species and new records of bathyal living Pectinoidea (Bivalvia: Propeamussiidae: Pectinidae) from the Southwest Pacific
FIG. 1. — Parvamussium orbiculatum n. sp.: A, B, E, F, holotype MNHN 25749; A, external view of the left valve; B, external view of the right valve; E, detail of the commarginal striae of the external side of the right valve; F, idem, detail inter striae; C, D, G, H, paratype MNHN 25750; C, internal view of the left valve; D, internal view of the right valve; G, Prodissoconch of the right valve; H, prodissoconch of the left valve. Scale bars: A-D, 1 mm; E, 100 µm; F, 20 µm; G, H, 50 µm.
FIG. 3 in New species and new records of bathyal living Pectinoidea (Bivalvia: Propeamussiidae: Pectinidae) from the Southwest Pacific
FIG. 3. — Juxtamusium sp.: A-D, pair valve; A, external view of the left valve; B, external view of the right valve; C, internal view of the left valve; D, internal view of the right valve. Scale bar: 1 cm.
FIG. 2. — Parvamussium perspicuum n in New species and new records of bathyal living Pectinoidea (Bivalvia: Propeamussiidae: Pectinidae) from the Southwest Pacific
FIG. 2. — Parvamussium perspicuum n. sp.: A, B, E, F, holotype MNHN 25747; A, external view of the left valve; B, external view of the right valve; E, detail of the commarginal striae of the external side of the right valve; F, idem, detail inter striae; C, D, G, H, paratype MNHN 25748; C, internal view of the left valve; D, internal view of the right valve; G, Prodissoconch of the right valve; H, prodissoconch of the left valve. Scale bars: A-D, 1 mm; E, 100 µm; F, 20 µm; G, H, 50 µm.
FIG. 1. — A-E in Pectinoidea (Mollusca, Bivalvia, Propeamussiidae, Cyclochlamydidae n. fam., Entoliidae and Pectinidae) from the Vanuatu Archipelago
FIG. 1. — A-E, Holotype of Cyclochlamys aperta n. sp. (MNHN 24271); A, B, external views of left and right valve; C, left valve prodissoconch; D, right valve detail; E, right valve prodissoconch; F-J, Micropecten excuratus n. gen., n. sp.; F, holotype (MNHN 24273), external view of left valve; G, paratype (MNHN 24274), external view of right valve; H, holotype, left valve prodissoconch; I, paratype, right valve detail; J, paratype, right valve prodissoconch. Scale bars: A, B, F, G, 500 µm; C-E, H-J, 100 µm.
Figure 11 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 11. Spondylus sp., south-east of Beira, Mozambique, 20°30'S, 35°43'E, depth 62 m, scanning electron micrograph of the pectiniform growth stage of the right valve, USNM(Z) 718596d. Scale bar = 100 µm.
Figure 10. A, B in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 10. A, B, Weyla (Lywea) lycorrhynchus (Philippi, 1899) (CAS 61458); C, D, W. (Weyla) alata (von Buch, 1838) (CAS 61457), both from Sunrise Formation, New York Canyon, Gabbs Valley Range, Nevada, Lower Jurassic. A, left valve; B, oblique anterior view showing ctenolium (arrow); C, hinge of right valve; D, hinge of left valve. Scale bars = 10 mm.
Figure 9 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 9. Neithea quinquecostata of Wade (1926), nonmatching valves, Ripley Formation, Coon Creek, Tennessee, Upper Cretaceous, USNM(P) 32760. A, hinge of right valve; B, hinge of left valve. Scale bars = 10 mm.
Figure 8 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 8. Pectinella sigsbeei (Dall, 1886), Recent, Cuba, 22°10′N, 82°20′W, 289 m, matching cotypes. A, right valve, MCZ 7817; B, left valve, USNM(Z) 62263. Scale bar = 2 mm.
Figure 12. Spondylus bostrychites Guppy, 1867 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 12. Spondylus bostrychites Guppy, 1867, Gurabo Fm, Dominican Republic, Lower Pliocene, USNM(P) 530054. A, hinge of the right valve; B, hinge of the matching left valve. Scale bars = 10 mm.
Figure 6 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 6. Propeamussium sp., Gulf of Mexico, 25°31′N, 95°51′W, 1061–1317 m. Scanning electron micrograph of a fracture through a right valve near the base of the posterior auricle viewed obliquely from the outer side, dorsal margin towards the top. cla, crossed-lamellar aragonite; fc, foliated calcite layer bearing imprint of prismatic layer on its outer surface; pc, prismatic calcite. Scale bar = 50 µm.
Figure 7 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 7. Filamussium schafhaeutli (Winkler, 1859), gen. nov., Upper Triassic (Norian/Rhaetian). A, a compound external mould of the left valve, Kössener Schichten, Kotalm, Schweinsberg bei Miesbach, Germany and BSPHG 1916-I-208. B, detail in the centre of (A) showing the superimposed internal filosus structure, external radial costae, and calcite-filled imprints of internal ribs. C, exterior of a right valve, Kössen Formation, Kendelbachgraben, Austria, USNM(P) 530053. Scale bars = 10 mm.
Figure 3. Pernopecten clypeatus Newell, 1938 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 3. Pernopecten clypeatus Newell, 1938, Upper Carboniferous, Nebraska City, Nebraska, composite mould of left valve showing a filosus structure, USNM(P) 6485. Scale bar = 7 mm.
Figure 4 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 4. Entolioides schlernica (Finlay, 1927), Upper Triassic, Raibler Schichten, Wettersteingebirge, Germany, interior of right valve, BSPHG 1948-I-33. rt, resilial teeth; other symbols as in Figure 2. Scale bar = 10 mm.
Figure 2 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 2. Pernopecten yini, nonmatching left valve (A) and right valve (B), Permian, west Texas, modified from Newell & Boyd (1995) to show the morphological terms used in the present study: bab, basal auricular buttresses; ldb, lateral disk buttresses; olg, outer-ligament grooves; olr, outer-ligament ridges; r, resilifer; s, scrolls. Scale bars = 10 mm.
Figure 1 in Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record
Figure 1. Phylogeny of the Pectinoidea derived from the Aviculopectinoidean family Euchondriidae. The numbers refer to clades described in the text. Terminal bars indicate extinction. Terminal arrows indicate continuation to the present. Geological time bands are not to scale.
Figs 46–48. Aequipecten commutatus peripheralis subsp. n. 46–47. Holotype, NMSA E8964, off Matigulu R in The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea)
Figs 46–48. Aequipecten commutatus peripheralis subsp. n. 46–47. Holotype, NMSA E8964, off Matigulu R., Zululand, 200–220 m, 19.4 x 18.4 mm. 46. LV exterior. 47. LV interior. 48. Paratype, NMSA E8964, same loc., 19.4 x 18.3 mm, RV interior.
Figs 1–2. Delectopecten musorstomi Poutiers, 1981 in The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea)
Figs 1–2. Delectopecten musorstomi Poutiers, 1981: NMSA C910, off Mtamvuna R., Transkei, 143 m, pv, 6.1 x 6.1 mm. 1. LV exterior. 2. RV exterior.
Figs. 25–26 in The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea)
Figs. 25–26. Laevichlamys lemniscata (Reeve, 1853): NMSA S8958, off Kosi Bay, Zululand, 51 m, pv, 48.6 x 44.1 mm. 25. LV exterior. 26. RV exterior.
Fig. 49 in The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea)
Fig. 49. Cryptopecten bullatus (Dautzenberg & Bavay, 1912): NMSA D1485, off Amanzimtoti, Natal, 160– 170 m, 16.1 x 16.0 mm, LV exterior.
Figs 44–45 in The family Pectinidae in South Africa and Mozambique (Mollusca: Bivalvia: Pectinoidea)
Figs 44–45. Mimachlamys sanguinea (Linnaeus, 1758): NMSA G3464, Benguera Is., Mozambique, pv, 53.2 x 50.1 mm. 44. LV exterior. 45. RV exterior.
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