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Fig. 7 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 7. Ordosemys liaoxiensis (Ji, 1995), GM V3002, Yixian Formation, Liaoning, China. Shell in dorsal view. Scale bar = 50 mm.

Fig. 4 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 4. Ordosemys liaoxiensis (Ji, 1995), GM V30004, Yixian Formation, Liaoning, China. Skull in dorsal (A), ventral (B) and right lateral (C) views. Key for figure 3.

Fig. 6 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 6. Ordosemys liaoxiensis (Ji, 1995), GM V30001 and GM V30002, Yixian Formation, Liaoning, China. Shell in dorsal (A) and ventral (B) views. Key for figure 5.

Fig. 3 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 3. Ordosemys liaoxiensis (Ji, 1995), GM V30004, Yixian Formation, Liaoning, China. Skull in dorsal (A), ventral (B) and right lateral (C) views. Scale bar = 50 mm.

Fig. 1 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 1. Ordosemys liaoxiensis (Ji, 1995), GM V3001, Yixian Formation, Liaoning, China. Skeleton in ventral view. Scale bar = 50 mm.

Fig. 8 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 8. Ordosemys liaoxiensis (Ji, 1995), GM V3001, Yixian Formation, Liaoning, China. Detail of tail. Scale bar = 50 mm.

Fig. 5 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 5. Ordosemys liaoxiensis (Ji, 1995), GM V30001 and GM V30002, Yixian Formation, Liaoning, China. Shell in dorsal (A) and ventral (B) views. Scale bar = 50 mm.

Fig. 2 in Ordosemys (Testudines: Cryptodira) from the Yixian Formation of Liaoning Province, Northeastern China: New Specimens and Systematic Revision

Fig. 2. Ordosemys liaoxiensis (Ji, 1995), GM V3001, Yixian Formation, Liaoning, China. Skull in ventral view. Scale bar = 50 mm.

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FIG. 20. — Tectulipora tuberculata n in ERRATUM volume 34 (4), 2012: 693-738. Date of publication: December 28, 2012. Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 20. — Tectulipora tuberculata n. sp: A, B, tangential section showing superstructure, holotype SMF 21.361; C, mid tangential section showing autozooecial chambers, apertures and wide keels, SMF 21.378; D, tangential section showing autozooecial apertures, holotype SMF 21.361; E, tangential section of reverse surface showing microacanthostyles and nodes, paratype SMF 21.377; F, tangential section of obverse surface showing granulated skeleton of axial wall, paratype SMF 21.371; G, longitudinal section, paratype SMF 21.362; H, transverse section of conical colony at its base, paratype SMF 21.369.Scale bars:A, B, G, H, 1 mm; C, 0.5 mm; D, 0.2 mm; E, F, 0.1 mm.

FIG. 11. — A, Neotrematopora tenuis n in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 11. — A, Neotrematopora tenuis n. sp., longitudinal section showing mesozooecium and zooecial walls, paratype SMF 21.211; B-G, Leioclema arauzensis n. sp.; B, tangential section showing autozooecial apertures, mesozooecia and abundant acanthostyles, holotype SMF 21.212; C, longitudinal section showing autozooecia and mesozooecia with diaphragms, holotype SMF 21.212; D, E, longitudinal section showing autozooecia with diaphragms and mesozooecia, paratype SMF 21.218; F, longitudinal section, paratype SMF 21.219; G, tangential section, paratype SMF 21.215. Scale bars: A, B, 0.2 mm; C-G, 0.5 mm.

FIG. 10. — A-C, Petalosis clarus n. gen., n in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 10. — A-C, Petalosis clarus n. gen., n. sp.: A, B, autozooecial apertures with styles (arrows), paratype SMF 21.200; C, longitudinal section showing autozooecia with diaphragms and vesicles, holotype SMF 21.194; D-G, Neotrematopora tenuis n. sp.; D, E, tangential section showing autozooecial apertures and acanthostyles, holotype SMF 21.207; F, longitudinal section, holotype SMF 21.207; G, longitudinal section, paratype SMF 21.211. Scale bars: A, E, 0.2 mm; B, 0.1 mm; C, 1 mm; D, F, G, 0.5 mm.

FIG. 21. — A in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 21. — A, complex bryozoan community with multilayered encrusting by Altshedata hispanica n.sp. (a), Leioclema arauzensis n.sp.(l) and Eridotrypella validaeformis n. sp. (e), top of the images shows also two branches of Eridotrypella validaeformis.; H, Hemitrypa lasutkiniae Waschurova, 1964, SMF 21.381; B, complex multiple encrusting by Altshedata hispanica n. sp. (a) and Fistulipora arauzensis n. sp. (f), Tectulipora tuberculata n. sp. (t), SMF 21.382; C, multiple encrusting of soft substrate by thin sheets of Petalosis clarus n. gen. n. sp. (p) and Fistulipora arauzensis n. sp. (f), SMF 21.383; D, base of Orthopora spinosa n. sp. on Fistulipora arauzensis n. sp., SMF 21.384; E, F, Neotrematopora tenuis n.sp. encrusting tabulate coral; E, SMF 21.207; F, SMF 21.210. Scale bars: A, B, 5 mm; C-F,1 mm.

FIG. 6. — A-C, Altshedata hispanica n in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 6. — A-C, Altshedata hispanica n. sp.; A, B, longitudinal section showing vesicles, paratype SMF 21.144; C, longitudinal section showing lunarial deposits in exozone, paratype SMF 21.142; D-G, Altshedata gracilis n. sp.; D, tangential section showing autozooecial apertures, holotype SMF 21.150; E, tangential section, paratype SMF 21.155; F, G, longitudinal section, paratype SMF 21.163. Scale bars: A, F, 1 mm; B, D, E, 0.2 mm; C, G, 0.5 mm.

FIG. 19. — A-F in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 19. — A-F, Hemitrypa lasutkiniae Waschurova,1964; A, B, oblique tangential section showing protecting superstructure and nodes on the reverse surface,SMF 21.355; C, D, tangential section showing autozooecial chambers, SMF 21.358; E, tangential section of reverse side showing nodes, SMF 21.357; F, openings in superstructure, tangential section, SMF 21.358; G, H, Tectulipora tuberculata n. sp., branch transverse section showing branches and superstructure, paratype SMF 21.380. Scale bars: A, C, H, 1 mm; B, G, 0.5 mm; D-F, 0.2 mm.

FIG. 5. — Altshedata hispanica n in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 5. — Altshedata hispanica n. sp.: A-C, longitudinal section showing autozooecia with abundant diaphragms, holotype SMF 21.130; D, longitudinal section showing microstructure of autozooecial walls, paratype SMF 21.142; E, F, tangential section showing autozooecial apertures and lunaria, holotype SMF 21.130; G, H, deep tangential section of autozooecial chambers, paratype SMF 21.142. Scale bars: A-C, 1 mm; D, 0.1 mm; E, G, 0.5 mm; F, H, 0.2 mm.

FIG. 2 in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 2. — Highly generalized stratigraphical column showing the main features of the Lebanza Formation and its subdivision into members. The approximate location of the studied interval is depicted to the right of the column (adapted from Fernández-Martínez et al. 2010). Abbreviations: b, boundstone (baffle-, bind-, framestone); br, rudstone, floatstone; g, grainstone; m, mudstone; p, packstone; w, wackestone.

FIG. 1. — A in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 1. — A, schematic map showing the location of the studied outcrops in the Arauz area (north of Palencia province, Spain); B, schematic geological map of the Cantabrian Zone (modified from Pérez-Estaún et al. 1988) showing the location of the studied outcrop in the Alto Carrión Unit.

FIG. 15. — A-C, Orthopora spinosa n in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 15. — A-C, Orthopora spinosa n. sp.; A, branch transverse section showing autozooecia growing from distinct median axis, paratype SMF 21.258; B, C, tangential section showing apertures and acanthostyles, paratype SMF 21.268; D-I, Vidronovella elegantula n. sp.: D, branch oblique section, holotype SMF 21.294; E, F, tangential section showing autozooecial apertures and distribution of acanthostyles, holotype SMF 21.294; G, H, longitudinal section showing autozooecia with hemisepta, holotype SMF 21.294; I, branch transverse section showing autozooecia growing from distinct median axis, paratype SMF 21.312. Scale bars: A, C, E-G, 0.2 mm; B, H, I, 0.5 mm.

FIG. 9. — A, B in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 9. — A, B, Eridopora sp., tangential section showing autozooecial apertures with triangular lunaria, SMF 21.193; C-H, Petalosis clarus n. gen. n.sp.; C, longitudinal section showing autozooecia and vesicles, holotype SMF 21.194;D, E, transverse section showing lunaria, paratype SMF 21.200; F, tangential section, holotype SMF 21.194; G, H, tangential section showing autozooecial apertures with styles (arrows), paratype SMF 21.200. Scale bars: A, F, 1 mm; B, C, G, 0.2 mm; D, 0.5 mm; E, 0.25 mm; H, 0.1 mm.

FIG. 4 in Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain)

FIG. 4. — Some important measurements made on the fenestrate bryozoans. Abbreviations: ADB, aperture spacing along branch; AAB, aperture spacing diagonally; AW, autozooecial aperture width; DBC, distance between branch centres;DBD, distance between dissepiment centres; DN, node diameter; LA, lateral wall budding angle; LF, fenestrule length; MAW, maximum chamber width; RWT, thickness of reverse wall laminated layer; SNB, node spacing; TB, branch thickness; TRW, thickness of reverse wall granular layer; WB, branch width; WD, dissepiment width; WF, fenestrule width.