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94 results for “chemosymbiotic”
Fig. 10 in Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy
Fig. 10. The vesicomyid bivalve Isorropodon sp. from the late Pliocene of Italy, Stirone River seep deposit. A. MGGC.22019, hinge area of left valve. B. MGGC.22020, hinge area of right valve (B1), close-up of prodissoconch (B2).
Fig. 2 in Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy
Fig. 2. The solemyid bivalve Acharax doderleini (Mayer, 1861) from the late Pliocene of Italy, Stirone River seep deposit; MGGC.22007 view on exterior of right valve.
Fig. 5 in Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy
Fig. 5. The lucinid bivalve Megaxinus stironensis sp. nov. from the late Pliocene of Italy, Stirone River seep deposit. A. MGGC.22010, interior of left valve. B. MGGC.22011, exterior (B1) and interior (B2) of left valve of a large specimen. C. MGGC.22012, exterior of right valve (C1) and dorsal view (C2) of articulated specimen. D. NRM Mo184001, apical view of articulated specimen. E. MGGC.22013, internal mold showing strong radial striation on the thin veneer of remaining shell; this type of preservation is not uncommon at the Stirone River.
Fig. 3 in Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy
Fig. 3. The lucinid bivalve Megaxinus ellipticus (Borson, 1825) from the late Pliocene of Italy, Stirone River seep deposit. MGGC.22008, close-up of hinge region of RV (A), view of left valve exterior and right valve hinge (B), view of exterior of right valve (C); dorsal view on right valve (D).
Fig. 6 in Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy
Fig. 6. The lucinid bivalve Lucinoma persolida (Sacco, 1901) from the late Pliocene of Italy, Stirone River seep deposit. MGGC.22014, left (A) and right B) valves; in dorsal views (A1, B1), views of the interior including hinge and muscle attachment scars (A2, B2), and views of exterior (A3, B3).
Fig. 9 in Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy
Fig. 9. The lucinid bivalve Anodontia sp. from the late Pliocene of Italy, Stirone River seep deposit. A. MGGC.22017, smaller specimen, close-up of edentulous hinge area of left valve (A1), dorsal view (A2), and view of outer side of left valve (A3). B. MGGC.22018, larger specimen, left valve, exterior view.
Fig. 4 in Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy
Fig. 4. The lucinid bivalve Megaxinus stironensis sp. nov. from the late Pliocene of Italy, Stirone River seep deposit. MGGC.22009, holotype, left (A) and right (B) valves in dorsal views (A1, B1), views on the interior including hinge, muscle attachment scars and blood vessel attachment scar (A2, B2), and views of exterior (A3, B3).
Fig. 2 in An enigmatic, possibly chemosymbiotic, hexactinellid sponge from the early Cambrian of South China
Fig. 2. Plot of maximum sponge diameter (measured across most distant two points on outer surface) versus maximum width (in millimetres) for the available specimens, with intercept set to 0 and a quadratic correlation plotted with regression coefficient R2 = 0.997. Largest two specimens are incomplete, and measurements are approximate; assume errors in d of up to 5 mm for these two only.
Fig. 3 in An enigmatic, possibly chemosymbiotic, hexactinellid sponge from the early Cambrian of South China
Fig. 3. Interpretative reconstruction of hexactinellid−like sponge Decumbispongia yuani gen. et sp. nov. Internal structure is hypothetical and illustrates a possible canal structure allowing ventilation of interior from convex outer surface (see text for discussion), with exhalent canals on concave, inner surface. Internal spiculation, if any, unknown.
Fig. 1 in An enigmatic, possibly chemosymbiotic, hexactinellid sponge from the early Cambrian of South China
Fig. 1. Hexactinellid−like sponge Decumbispongia yuani gen. et sp. nov. from the Hetang Formation near Lantian, Anhui (A–D) and Niutitang Formation at Danzhai, Guizhou (E). A. Paratype NIGP154189, a flattened, near−complete specimen preserved as black iron minerals. B. Paratype NIGP154190. Fragment with relief showing spicule arrangement preserved at surface, consisting of irregularly clustered, orthogonal and diagonal hexactine−based spicules (B1). Camera lucida drawing of B1, clarifying poorly preserved spicule array (dashed line acts as reference for the most prominent spicule) (B2). C. Holotype NIGP154188, near−complete specimen showing annulations, tapering distal(?) end and weakly preserved spicules (arrowed). D. Probable juvenile specimen on slab with NIGP154188, showing straighter growth form and well−developed spicules (arrowed). E. NIGP154192.
FIG. 41. — Bretskya scapula n. gen., n in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 41. — Bretskya scapula n. gen., n. sp., Pandanan Island, Philippines:A, dorsal view of paratype (BMNH 20050580); B, protoconch; C, detail of sculpture. Scale bars: A, 1 mm; B, 50 µm; C, 100 µm.
FIG. 40. — Bretskya scapula n. gen., n in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 40. — Bretskya scapula n. gen., n. sp.: A-J, Pandanan Island, Philippines; A-C, holotype (BMNH 20050579), exterior of right valve and interior of right and left valves; D-J, paratype (BMNH 20050580); D-F, exterior of right valve and interior of right and left valves; G, exterior of right valve; H, exterior of right valve; I, J, detail of hinges of left and right valves; K, L, Philippines, MUSORSTOM 3, stn DR 140, 93-99 m (MNHN); M, N, Touho, stn 1249, New Caledonia, exterior and interior right valve. Scale bars: A-H, K-N, 2.0 mm; I, J, 1.0 mm.
FIG. 39 in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 39. — Outline drawings of interiors of right valves of Parvidontia n. gen. and Bretskya n. gen. species: A, P. laevis n. gen., n. sp.; B, B. scapula n. gen., n. sp. Not to scale.
FIG. 38. — Parvidontia laevis n. gen., n in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 38. — Parvidontia laevis n. gen., n. sp.: A, B, holotype (MNHN), Touho, stn 1260, New Caledonia, exterior and interior of left valve; C, protoconch; D, E, paratype (MNHN), secteur de Canala, stn 729, New Caledonia, exterior and interior of right valve; F, paratype (MNHN), exterior of left valve; G, detail of hinge of holotype, left valve. Scale bars: A, B, D-F, 2 mm; C, 100 µm.
FIG. 36 in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 36. — Chavania striata (Tokunaga, 1906): A, exterior of right valve, Atoll de Surprise, stn 451, New Caledonia, 30 m (MNHN); B, interior of left valve; C, detail of surface sculpture; D, exterior of right valve; E, F, interior of right valve, exterior of left valve, Atoll de Huon, New Caledonia (MNHN); G, interior of left valve of juvenile shell, Lizard Island, Queensland (BMNH); H, I, detail of hinges of right and left valves, Atoll de Surprise, stn 451 (MNHN); J, protoconch, Lizard Island (BMNH). Scale bars: A, B, D-F, 2.0 mm; C, 250 µm; G-I, 1.0 mm; J, 60 µm.
FIG. 42 in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 42. — Fimbria fimbriata (Linnaeus, 1758): A, B, exterior of right valve and interior of left valve, Touho, stn 1242, New Caledonia (MNHN); C, juvenile, left valve, Koumac, stn 1286 (MNHN). Scale bars: A, B, 10 mm; C, 5 mm.
FIG. 35 in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 35. — Wallucina fijiensis (Smith, 1885): A, B, exterior and interior of right valve, Touho, stn 1242, New Caledonia; C, D, exterior and interior of right valve, Touho, stn 1242; E, detail of surface sculpture; F, umbonal area, Lifou, stn 1420; G, interior of left valve juvenile shell, Lifou, stn 1240; H, protoconch, Lifou, stn 1240; I, J, details of hinge teeth of left and right valves of A. Scale bars: A-D, 2 mm; E, 200 µm; F, G, I, J, 1.0 mm; H, 75 µm.
FIG. 33 in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 33. — Pillucina pacifica Glover & Taylor, 2001, Lifou, stn 1430, Loyalty Islands (MNHN): A, exterior of left valve; B, C, interior of left and right valves. Scale bars: 2 mm.
FIG. 34 in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 34. — Outline drawings of interiors of right valves of Pillucina Pilsbry, 1921, Wallucina Iredale, 1930, Chavania Glover & Taylor, 2001 and Funafutia Glover & Taylor, 2001 species: A, W. fijiensis (Smith, 1885); B, C. striata (Tokunaga, 1906); C, P. pacifica Glover & Taylor, 2001; D, P. copiosa n. sp.; E, F. levukana (Smith, 1885). Not to scale.
FIG. 32. — Pillucina copiosa n in Diversity of chemosymbiotic bivalves on coral reefs: Lucinidae (Mollusca, Bivalvia) of New Caledonia and Lifou
FIG. 32. — Pillucina copiosa n. sp., Koumac, stn 1277, New Caledonia: A, B, holotype (MNHN), exterior of left valve and interior of right valve; C, juvenile shell, right valve; D, E, paratypes (MNHN), interior of right and left valves; F, paratype (MNHN) exterior of right valve; G, paratype (MNHN), dorsal view; H, umbonal area of G; I, detail of protoconch. Scale bars: A-G, 1.0 mm; H, 200 µm; I, 50 µm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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