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Fig. 10 in A unique late Eocene coleoid cephalopod Mississaepia from Mississippi, USA: New data on cuttlebone structure, and their phylogenetic implications

Fig. 10. Sepioid cephalopod Mississaepia mississippiensis Weaver, Dockery III, and Ciampaglio, 2010 (MGS 1963); late Eocene, Mississippi, USA. Mural part of septum lining a chamber (A), adoral surface of peripheral portion of septum (B), photographs (A1, B1); EDS data to show chemical composition (A2, B2); in both cases nitrogen indicates organic ingredient and phosphorus indicates diagenetic phosphatization of apparently originally organic material.

Fig. 4 in A unique late Eocene coleoid cephalopod Mississaepia from Mississippi, USA: New data on cuttlebone structure, and their phylogenetic implications

Fig. 4. Sepioid cephalopod Mississaepia mississippiensis Weaver, Dockery III, and Ciampaglio, 2010 (MGS 1945); late Eocene, Mississippi, USA. Inner surface of the phragmocone exposing a small fragment of brownish transparent septum preserved. Abbreviatons: lwph, lateral wall of the phragmocone; mlad, median line indicating apertural direction; mlpd, median line indicating posterior direction; mpls, mural part of last septum; rr, ribby relief; sr, septal ridge; trs, transparent fragmentary septum; vsdsh, ventral side of dorsal shield.

Fig. 3 in A unique late Eocene coleoid cephalopod Mississaepia from Mississippi, USA: New data on cuttlebone structure, and their phylogenetic implications

Fig. 3. Sepioid cephalopod Mississaepia mississippiensis Weaver, Dockery III, and Ciampaglio, 2010 (MGS 1948); late Eocene, Mississippi, USA. Median cuttlebone section to show loosely mineralized dorsal shield (bottom), small cup−like protoconch covered by thin layer of the dorsal shield (on the left) and curved hollow phragmocone exhibiting two long chambers and next short chambers; to the right from the last preserved (eighth?) septum inner surface of phragmocone is transversely ribbed. Abbreviations: dsh dorsal shield; p, protoconch; rr, ribbed relief of the inner surface of the phragmocone; 1s, 2s, 3s, 8s, first, second, third, eighth septa.

Fig. 2 in A unique late Eocene coleoid cephalopod Mississaepia from Mississippi, USA: New data on cuttlebone structure, and their phylogenetic implications

Fig. 2. Sketch map showing the location of the Yazoo Clay, the Miss Lite Clay Pit in the northwest corner of the town of Jackson and the Moodys Branch Formation, Town Creek locality south of Jackson in Hinds County, Mississippi, USA.

Fig. 1 in A unique late Eocene coleoid cephalopod Mississaepia from Mississippi, USA: New data on cuttlebone structure, and their phylogenetic implications

Fig. 1. Cuttlebone of Late Eocene sepioid cephalopod Mississaepia mississippiensis Weaver, Dockery III, and Ciampaglio, 2010 from Mississippi, USA with a missing anterior−most part (MGS 1945), in left lateral (A) and ventral (B) views. Abbreviations: dsh, dorsal shield; lwph, lateral wall of the phragmocone; phr, phragmocone; vg, ventral groove of spine; vp, ventral plate.

Fig. 3 in A review of the endocerid cephalopod Protocyptendoceras from the Floian (Lower Ordovician) of the Eastern Cordillera, Argentina

Fig. 3. Stratigraphic column at La Ciénaga, 5 km northwest of Purmamarca, indicating the beds containing cephalopods.

Fig. 2. A in A review of the endocerid cephalopod Protocyptendoceras from the Floian (Lower Ordovician) of the Eastern Cordillera, Argentina

Fig. 2. A. Map of Argentina with the Jujuy region in black. B. Jujuy region with the study are indicated. C. Location map of the fossil locality (La Ciénaga), 5 km northwest of Purmamarca.

Fig. 1 in A review of the endocerid cephalopod Protocyptendoceras from the Floian (Lower Ordovician) of the Eastern Cordillera, Argentina

Fig. 1. Explanation of some of the measurements indicated in Table 2: a, distance between adjacent sutures; b, dorsoventral conch diameter; c, distance between the plane of the suture and the culmination of the septum. (a/b).100 = Cam. Dep. (c/b).100 = Sep. Dep. For abbreviations see epigraph of Table 2.

Fig. 5 in A review of the endocerid cephalopod Protocyptendoceras from the Floian (Lower Ordovician) of the Eastern Cordillera, Argentina

Fig. 5. Paleobiogeographical distribution of Protocyptendoceras and the related genera Anthoceras Teichert and Glenister, 1954, Notocycloceras Teichert and Glenister, 1954, Lobendoceras Teichert and Glenister, 1954 and Ventroloboceras Teichert and Glenister, 1954 (see text for explanation). AN, Antarctica; AUST, Australia; AM, Armorican Massif; BM, Bohemian Massif; B, Baltica; G, Gondwana; IN, India; L, Laurentia; SCH, South China; NCH, North China; S, Siberia; CAB, Argentinian part of the Central Andean Basin (paleogeographical map after Astini et al. 2007).

Fig. 5 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy

Fig. 5. Ptenoceras? sp. Praha−Braník, Pragian, Praha Formation, DvorceProkop Limestone. Specimen NM−L 7644, juvenile shell with preserved colour pattern (A, B) and schematic outlines of colour pattern (C, D), lateral (A) and ventral (B) views.

Fig. 3 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy

Fig. 3. Colour patterns in Devonian cephalopods Ptenoceras. A. Ptenoceras nudum (Barrande, 1865). Praha−Hlubočepy, Dalejan, Daleje−Třebotov Formation, Třebotov Limestone. Specimen NM−L 40727 in lateral (A1) and ventral (A2) views, showing colour bands—zigzags on ventral side of the whorl and a trace of colour band ventrolaterally (indicated by arrow). B. Ptenoceras alatum (Barrande, 1865). Koněprusy, Pragian, Praha Formation, Koněprusy Limestone. Specimen NM−L 40726, in lateral (B1) and frontal (B2) views, exhibiting bifurcating colour bands oblique to axis of the shell.

Fig. 1 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy

Fig. 1. Adapertural part of orthoceratoid body chamber with preserved colour pattern; counterpart, specimen NM−L 38470. Koněprusy, Klonk section, Lower Devonian, Lochkovian, Lochkov Formation, Monograptus uniformis Zone, probably interbed 20/21 (see Chlupáč et al. 1972). A. Photograph. B. Schematic drawing.

Fig. 6 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy

Fig. 6. False colour pattern in Pseudorutoceras bolli Barrande, 1866. NM−L 449 from Praha−Hlubočepy, Dalejan, Daleje−Třebotov Formation, Třebotov Limestone. A. A part of the body chamber with original Barrande's inscription noticing "test", aperture up. B. The same specimen in opposite orientation, artificially abraded adapical part with wavy dark lines; ventrolateral view.

Fig 2 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy

Fig 2. Adapertural part of orthoceratoid body chamber NM−L 38471 with preserved colour pattern; counterpart. Koněprusy, Klonk section, Lower Devonian, Lochkovian, Lochkov Formation, Monograptus uniformis Zone, interbed 20/21 (see Chlupáč, Jaeger and Zikmundová 1972). A. Photograph. B. Schematic drawing; axis of the shell is indicated.

Fig. 4 in Colour patterns in Early Devonian cephalopods from the Barrandian Area: Taphonomy and taxonomy

Fig. 4. Ptenoceras alatum (Barrande, 1865). Schematic outlines of colour pattern in specimen NM−L 40726, illustrated here on Fig. 3B.

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Fig. 5 in Soft-tissue attachments in orthocerid and bactritid cephalopods from the Early and Middle Devonian of Germany and Morocco

Fig. 5. SEM micrographs of Bactrites, and Cycloceras of early Emsian age (Early Devonian) from Ouidane Chebbi (Tafilalt, Morocco). The specimens coated with carbon. A. Bactrites sp. C; PIMUZ 7272; A1, detail of the annular elevation; note the rugged surface of the adoral part as well as the right and the median lobe of the annular elevation; A2, dorsal view of the same, showing last formed septum and posterior portion of body chamber; note the tracking bands, the mural band, and the annular elevation. B. Cycloceras sp.; PIMUZ 7263; B1, lateral view of a part of the phragmocone; B2, B3, same specimen, details of the wrinkle layer; note that the wrinkles are asymmetric in cross section with the steeper slope pointing adapically. C. Cycloceras sp.; PIMUZ 7261; detail of the conchal furrow. D.?Bactrites sp.; PIMUZ 7269; D1, detail of the wrinkle layer; D2, same specimen detail of the wrinkle layer in a smaller scale, note the asymmetry; D3, same specimen, overview of the adoral part of the body chamber.

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Fig. 2 in Soft-tissue attachments in orthocerid and bactritid cephalopods from the Early and Middle Devonian of Germany and Morocco

Fig. 2. Schematic outlines of the variability of the dorsal furrow in Acanthomichelinoceras commutatum (Giebel, 1852), showing the base of a chamber mould, with annular elevation dotted. Note the differences of the starting point of the dorsal furrow, sometimes within the mural area, sometimes within the annular elevation. A. NHW 56.9.05/402. B. NHW 56.9.05/404. C. MB.C.5366.4. D. MB.C.5366.1. Not to scale.

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Fig. 1 in Soft-tissue attachments in orthocerid and bactritid cephalopods from the Early and Middle Devonian of Germany and Morocco

Fig. 1. Soft−tissue attachment structures in cephalopods from the Wissenbach Schiefer (early Eifelian). A. Bactrites gracile (Blumenbach, 1803), NHW 62.11/W−23/64, dorsal view, note the two different grayish bands (arrows) forming a lobe. B. Bactrites sp. A, NHW 402, dorsal view (B1), note two successive, slightly undulated grooves. Same specimen, lateral view (B). Same specimen, ventral view (B), note the small lobe in suture line. Same specimen, +

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Fig. 9 in Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia

Fig. 9. Polished median section of Parvihebetoceras wahli sp. nov., TUG 1227/41, from the Siuge Member, Porkuni, Estonia showing the truncated part of the shell with septum of truncation and fractured outer shell. Note also the siphuncular diaphragm, 0.6 mm adoral of the septum of truncation.