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443 results for “Cephalopod”
Fig. 9 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 9. Oncerida of the Boda Limestone. Note the high variability in conch curvature and angle of expansion in Beloitoceras. A-B. Beloitoceras sinuososeptatum (Roemer, 1861). A. PMU 24769. B. PMU 26638, Kallholn. C-D. Beloitoceras siljanense Frye, 1987. C. PMU 26644. D. PMU 26645, Kallholn. E-F. Apex of Beloitoceras sp., PMU 26646, Kallholn. E. Adapical view. F. Lateral view. G-H. Cyrtorizoceras thorslundi sp. nov., PMU 26657, Osmundsberget, mature body chamber. G. Lateral view. H. Adapical view. I. Beloitoceras siljanense Frye, 1987, PMU 26643, Kallholn, with major conch repair at adoral part. J. Cyrtorizoceras thorslundi sp. nov., PMU 26647, holotype, Kallholn, complete juvenile specimen. Scale bars: A-D, G-J = 10 mm; E-F = 2 mm.
Fig. 5 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 5. Polished median section of Cameroceras turrisoides sp. nov., PMU 26624, Unskarsheden, Boda Limestone. A. Total fragment; note that the light, layered, micritic filling of the siphuncle is not an endosiphuncular deposit. B. Enlarged detail of the connecting ring and the holochoanitic septal neck. Scale bars: A = 10 mm; B = 5 mm.
Fig. 19 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 19. Orthocerida of the Boda Limestone. A. Nathorstoceras adnatum sp. nov., PMU d1440, holotype, Kallholn, lateral view. B-C. Nathorstoceras kallholnense sp. nov., PMU 26730, Kallholn, complete body chamber. B. Lateral view. C. view from prosiphuncular side. D. Geisonoceras wegelini (Angelin in Angelin & Lindström, 1880) comb. nov., PMU 26747, Unskarsheden, lateral view. E. Ordogeisonoceras foerstei (Strand, 1934) comb. nov., PMU 26762, Kallholn, lateral view. F. Nathorstoceras kallholnense sp. nov., PMU 26729, holotype, lateral view, note siphuncle on left side. Scale bar = 10 mm for all figures.
Fig. 4 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 4. Orthoconic cephalopods of the Boda Limestone. A. Cameroceras turrisoides sp. nov., PMU 26613, holotype, Unskarsheden, lateral view. B. Isorthoceras dalecarlense Kröger et al., 2011, PMU 26794, Kallholn. C. Isorthoceras wahlenbergi Niko, 2008, PMU 26893 and 26894, Kallholn. D. Order, gen. et sp. indet., PMU 26950, Kallholn, lateral view. Scale bar = 10 mm for all figures.
Fig. 13 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 13. Polished median sections of Orthocerida of the Boda Limestone. A. Dawsonoceras fenestratum (Eichwald, 1860), PMU 26706, Kallholn. B-C. Striatocycloceras isbergi sp. nov. B. PMU 26681, Kallholn. C. PMU 26661, Osmundsberget. D. Isorthoceras angelini sp. nov., PMU 26784, Kallholn. E. Nathorstoceras kallholnense sp. nov., PMU 26729, holotype, Kallholn. F. Nathorstoceras adnatum sp. nov., PMU 26733, holotype, Kallholn. G. Pleurorthoceras osmundsbergense sp. nov., NRM-PZ Mo, 190102c, Osmundsberget. H. Ordogeisonoceras foerstei (Strand, 1934) comb. nov., PMU 26763, Kallholn. I. Geisonoceras wegelini (Angelin in Angelin & Lindström, 1880) comb. nov., PMU 26740, Kallholn. Scale bars: A-D, I = 1 mm; E-H = 5 mm.
Fig. 1 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 1. Map of the Siljan ring structure with Lower Palaeozoic sediments preserved (dark grey), and the three most important localities are marked (modified from Ebbestad & Högström 2007). Stratigraphical scheme of the Boda Limestone and adjacent lithostratigraphic units (compiled from Suzuki et al. 2009; Rasmussen et al. 2010). Abbreviations: Fm = Formation; Mbr = Member; S.S. = stage slices (after Bergström et al. 2009).
Fig. 11 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 11. Morphological variation of Beloitoceras sinuososeptatum (Roemer, 1861). Circles: specimens of the Boda Limestone. Black dot: type specimen of Beloitoceras siljanense Frye, 1987. Black diamonds: types of Beloitoceras heterocurvatum Strand, 1934. Grey dot: type specimen of Beloitoceras landerense Foerste, 1935. A distinction between B. siljanense and B. sinuososeptatum is impossible based on the available material.
Fig. 12 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 12. Annelate Orthocerida of the Boda Limestone. A. Palaeodawsonocerina senckenbergi (Teichert, 1930), PMU 26718, Kallholn. B-C. Striatocycloceras isbergi sp. nov., Osmundsberget. B. PMU 26660, holotype, Osmundberget. C. PMU 26664. D-E. Palaeodawsonocerina? nicolletoides sp. nov., PMU 26728, Kallholn. D. Adapical view. E. Lateral view. Scale A-C = 10 mm; D-E = 10 mm.
Fig. 14 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 14. Reconstructions of the details of the septal necks and siphuncular segments of Orthocerida of the Boda Limestone. Note the different septal thicknesses. A. Striatocycloceras isbergi sp. nov., PMU 26681, Kallholn. B. Dawsonoceras fenestratum (Eichwald, 1860), PMU 26706, Kallholn. C. Pleurorthoceras osmundsbergense sp. nov., NRM-PZ Mo 150102c, Osmundsberget. D. Isorthoceras angelini sp. nov., PMU 26784, Kallholn.
Fig. 8 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 8. Orthoconic brevicones of the Boda Limestone of Kallholn. A. Tyrioceras cf. kjaerulfi Strand, 1934, PMU 26897, view from antisiphuncular side. B-C. Kiaeroceras heroyense Strand, 1934, PMU 26628. B. Lateral view, with siphuncle on left side. C. View from antisiphuncular side. Scale bar = 10 mm for all figures.
Fig. 15 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 15. Fragments of the outer shell and negative shell impression of Striatocycloceras? sp., PMU 26699, Kallholn, Boda Limestone. Scale bar = 10 mm.
Fig. 6 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
Fig. 6. Apex of Cameroceras turrisoides sp. nov., NRM-PZ Mo 9264, Kallholn, Boda Limestone. A. View from prosiphuncular side. B. Lateral view. C. Complete specimen, prosiphuncular view; note shell repair on adoral part. D. Lateral view. Scale bars: A-B = 10 mm; C-D = 10 mm.
Figure 1 in The role of female cephalopod researchers: past and present
Figure 1. Bibliometric analysis of the papers presented during the CIAC 2012 Symposium. (A) Registrations by gender; (B) authorship of oral presentations by gender; (C) presenters of oral presentations by gender; (D) authorship of poster presentations by gender.
Figure 2 in The contribution of molecular data to our understanding of cephalopod evolution and systematics: a review
Figure 2. Polyploidy scenario suggested by and reproduced from Bonnaud et al. (2004). Updated diploid chromosome numbers (see Table 2) for the various branches are now Nautiloidea 52; Octopoda 56–60; Sepiolida 74; Sepiida 48–112; Myopsida 86–92 (?22-?172).
Figure 6 in The contribution of molecular data to our understanding of cephalopod evolution and systematics: a review
Figure 6. Relationships among Sepiida. (A) Consensus tree based on 12S rRNA, 16S rRNA, cytochrome oxidase subunit II (Bonnaud et al. 2006); (B) maximum likelihood tree of cytochrome oxidase subunit I, cytochrome b and ND5 combined (Yoshida et al. 2010); (C) whole evidence approach using four to ten genes (Lindgren et al. 2012). Trees redrawn from original sources.
Figure 7 in The contribution of molecular data to our understanding of cephalopod evolution and systematics: a review
Figure 7. Relationships within Onychoteuthidae. (A) Neighbour-joining tree based on 16S ribosomal RNA (Bonnaud et al. 1998); (B) maximum likelihood tree of five genes (see text) combined (Lindgren 2010); (C) maximum likelihood tree based on whole evidence approach using four to ten genes (Lindgren et al. 2012). All trees redrawn from original sources. Nomenclature uses systematic revision of Bolstad (2010).
Fig. 39. A–P in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey
Fig. 39. A–P. Discoscaphites iris (Conrad, 1858), uppermost New Egypt Formation and basal Hornerstown Formation, AMNH loc. 3345, northwest of Eatontown, Monmouth County, New Jersey. A– D. AMNH 47105, microconch. A, Right lateral; B, apertural; C, ventral; D, left lateral. E–H. AMNH 51056, microconch. E, Right lateral; F, apertural; G, ventral; H, left lateral. I, J. AMNH 37359, dimorph indeterminate. I, Ventral; J, left lateral. K–M. AMNH 47368, dimorph indeterminate. K, Right lateral; L, ventral; M, left lateral. N–P. AMNH 47105, dimorph indeterminate. N, Right lateral; O, apertural; P, ventral. Q–T. Discoscaphites minardi Landman et al., 2004, AMNH 47369, microconch, same locality as A–P. Q, Right lateral; R, apertural; S, ventral; T, left lateral. U–X, c–f. Discoscaphites spp., same locality as A–P. U–X. AMNH 47371. U, Right lateral; V, apertural; W, ventral; X, left lateral. c– f. AMNH 47374. c, Right lateral; d, apertural; e, ventral; f, left lateral. Y–Z, a, b. Discoscaphites gulosus (Morton, 1834), AMNH 47106, same locality as A–P. Y, Right lateral; Z, apertural; a, ventral; b, left lateral. All figures are X1.
Fig. 36. A–H, K–Q, S–Z, l–p in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey
Fig. 36. A–H, K–Q, S–Z, l–p. Discoscaphites iris (Conrad, 1858), cluster 1, uppermost New Egypt Formation, AMNH loc. 3345, northwest of Eatontown, Monmouth County, New Jersey. A–D. AMNH 47355, macroconch with a repaired injury. A, Right lateral; B, apertural; C, ventral; D, left lateral. E– H. AMNH 47351, macroconch. E, Right lateral; F, apertural; G, ventral; H, left lateral. K–M. AMNH 47347, macroconch. K, Right lateral; L, apertural; M, ventral. N–Q. AMNH 47343, dimorph indeterminate. N, Right lateral; O, apertural; P, ventral; Q, left lateral. S–V. AMNH 47349, dimorph indeterminate. S, Right lateral; T, apertural; U, ventral; V, left lateral. W–Z. AMNH 47339, dimorph indeterminate. W, Right lateral; X, apertural; Y, ventral; Z, left lateral. l–n. AMNH 47336, dimorph indeterminate. l, Apertural; m, ventral; n, left lateral. o, p. AMNH 47332, dimorph indeterminate. o, Right lateral; p, ventral. I, J, R, a–k, q–v. Discoscaphites spp., same loc. as A–H. I, J. AMNH 47350. I, Right lateral; J, apertural; R. AMNH 51063, right lateral. a–d. AMNH 47328. a, Right lateral; b, apertural; c, ventral; d, left lateral. e, f. AMNH 47324. e, Right lateral; f, ventral. g–j. AMNH 47335. g, Right lateral; h, apertural; i, ventral; j, left lateral. k. AMNH 47391, left lateral. q–s. AMNH 47329. q, Right lateral; r, ventral; s, left lateral. t–v. AMNH 47340. t, Right lateral; u, ventral; v, left lateral. All figures are X1.
Fig. 33. A–T in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey
Fig. 33. A–T. Eubaculites sp. Upper New Egypt Formation, 1.5–2 m below the base of the Hornerstown Formation, AMNH loc. 3346, northwest of Eatontown, Monmouth County, New Jersey. A– E. MAPS A2053c1. A, Right lateral; B, dorsal; C, ventral; D, left lateral; E, whorl cross section at adapical end. F–J. AMNH 47160. F, Right lateral; G, dorsal; H, ventral; I, left lateral; J, whorl cross
Fig. 31 in Cephalopods From The Cretaceous/Tertiary Boundary Interval On The Atlantic Coastal Plain, With A Description Of The Highest Ammonite Zones In North America. Part 2. Northeastern Monmouth County, New Jersey
Fig. 31. Eubaculites latecarinatus (Brunnschweiler, 1966). Uppermost New Egypt Formation and basal Hornerstown Formation, AMNH loc. 3345, northwest of Eatontown, Monmouth County, New Jersey. A–E. AMNH 47273. A, Right lateral; B, dorsal; C, ventral; D, left lateral; E, whorl cross section
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Allen Brain Atlas
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