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FIG. 4 in Juvenile eucladid crinoid from the Middle Devonian of Turkey

FIG. 4. — Plate diagram of Dendrocrinidae? gen., sp. indet. Black, radial plates; grey, matrix; Scale bar: 1.0 mm.

Fig. 5 in A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland

Fig. 5. Brachythoracid trunk armour restorations. (A,B) Taemasosteus (Early Devonian, Burrinjuck, NSW). (A) Posterior view of skull (from White, 1978: fig. 79); (B) anterior view of trunk armour, restored from individual bones, using Harrytoombsia as a model, as illustrated by Miles & Dennis (1979: fig. 9). (C) Confractamnis johnjelli n.gen. and n.sp.; trunk armour restoration, anterior view, based on Taemasosteus and Harrytoombsia.

Fig. 4 in A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland

Fig. 4. (A) Confractamnis johnjelli n.gen. and n.sp. Reconstruction of left lateral side of the trunk armour, based on ANU V1028 (holotype). (B–D) Isolated left ADL plate from the Early Devonian of Morocco, in external (B), anterior (C), and internal (D) views. Specimen MCD 62, figured by Lelièvre (1984b: pl. 6F–H).

Fig. 2. Confractamnis johnjelli n.gen. and n in A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland

Fig. 2. Confractamnis johnjelli n.gen. and n.sp. ANU V1028 (holotype). Bones of the trunk armour in external view (all incomplete). (A) Left ADL plate, with part of the MD plate and a fragment of the AL plate attached; (B) left PDL plate, with part of the PL plate attached; (C) left PL plate. All specimens acid-prepared, and whitened with ammonium chloride for photography.

Fig. 1 in A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland

Fig. 1. (A) Location of the Broken River area in Queensland, Australia. (B) Geological map of the collecting area (modified from Turner et al., 2000: fig. 2), showing the locality (Grid Reference 640 460) for the specimens described in this paper.

Fig. 6 in A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland

Fig. 6. Left trunk armour bones of the Late Devonian brachythoracid Dunkleosteus, arranged to show overlap relations (not to scale). (A,D) ADL plate in lateral and internal views (reversed images from Heintz, 1932: figs. 46–n>47); (B) PDL plate, and (C) PL plate, both in external view (from Heintz, 1932: figs. 49, 54).

FIG. 8 in The late Givetian (Middle Devonian) ammonoid Epitornoceras Frech, 1902 from Argentina (southwestern Gondwana)

FIG. 8. — Artistic reconstruction of the ammonoid Epitornoceras baldisi (Leanza, 1968) during the Middle Devonian. Paleoartist: H. Santiago Druetta (CICTERRA, Universidad Nacional de Córdoba, Argentina).

FIG. 7 in The late Givetian (Middle Devonian) ammonoid Epitornoceras Frech, 1902 from Argentina (southwestern Gondwana)

FIG. 7. — New specimens of Epitornoceras baldisi (Leanza, 1968) from the type area of the Chigua Formation (San Juan Province, Argentina): A, B, specimen INGEO-PI-2011; C, specimen INGEO-PI-2007; D, suture line of specimen INGEO-PI- 2004 at wh c. 33 mm; E, reconstructed suture line based on specimen INGEO-PI-2007 at wh c. 18 mm; F, specimen INGEO-PI-2005 (counterpart showing the external mold of the conch); G, H, specimen INGEO-PI- 2002 (part and counterpart showing the external mold of the conch); I, specimen INGEO-PI-2004; J, specimen INGEO-PI-2006; K, L, specimen INGEO-PI-2003 (L corresponds to latex cast of internal whorl). Scale bars: 2 mm. The pictures of some specimens have been flipped (A, B, and K).

FIG. 1 in The late Givetian (Middle Devonian) ammonoid Epitornoceras Frech, 1902 from Argentina (southwestern Gondwana)

FIG. 1. — Early Devonian simplified paleogeographic reconstruction showing the Malvinoxhosan (Malvinokaffric) Realm (red circle) indicating the location of the Precordillera (modified from Cocks & Torsvik 2006). Old Red Sandstone continents in Laurussia and Gondwana indicated in light yellow; terrane names are labeled. The localities with Epitornoceras Frech, 1902 are indicated by a white star: Morocco, Germany (RH, Rheno-Hercynian Terrane), North America, Argentine Precordillera.

FIG. 6 in The late Givetian (Middle Devonian) ammonoid Epitornoceras Frech, 1902 from Argentina (southwestern Gondwana)

FIG. 6. — Historical material of Epitornoceras baldisi (Leanza, 1968), identified as Tornoceras baldisi Leanza, 1968 by Leanza (1968), from the Chavela Creek ("Quebrada de la Chavela"), Chavela Member, Chigua Formation (San Juan Province, Argentina): A, B, holotype CPUBA 8088 (part and counterpart showing the external mold of the conch); C, additional specimen CPUBA 8089. Scale bars: 2 mm.

FIG. 4 in The late Givetian (Middle Devonian) ammonoid Epitornoceras Frech, 1902 from Argentina (southwestern Gondwana)

FIG. 4. — Stratigraphic section of the Chigua Formation showing the distribution of the identified taxa within the Chavela Member (ammonoid, trilobites, bivalve). Note the angular unconformity (>40°) between the Chigua and Malimán formations.

FIG. 3 in The late Givetian (Middle Devonian) ammonoid Epitornoceras Frech, 1902 from Argentina (southwestern Gondwana)

FIG. 3. — The Chavela Creek: A, B, structural cross-section of the Chavela Creek, showing the tectonic relation between the Chigua and Pircas Negras formations, and the angular unconformity from the overlying Malimán Formation (Mississippian); arrows point towards younger deposits; the white box (in A) indicates the location of pictures C and D; C, overturned psammitic beds, younger deposits towards the East; D, Ichnofossils indicating the base of beds.

FIG. 2 in The late Givetian (Middle Devonian) ammonoid Epitornoceras Frech, 1902 from Argentina (southwestern Gondwana)

FIG. 2. — Geological maps of the study area (A, B, modified from Amenábar 2009), and satellite image showing the location of the ammonoid fossils (C, from Google Earth).

Fig. 13 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 13. Palaeogeographic distribution of the reef-building laminar stromatoporoid genera during the Givetian and Frasnian (Middle–Late Devonian). Localities: 1, Northwest Territories, Canada (MacNeil and Jones 2016); 2, Dinant Basin, southern Belgium (Da Silva et al. 2011a, b); 3, Anti‐Atlas, Morocco (Jakubowicz et al. 2019); 4, Esfahan, central Iran (Mistiaen and Gholamalian 2000); 5, Guizhou, South China; 6, Canning Basin, western Australia (Cockbain 1984); 7, Queensland, eastern Australia (Cook 1999). Palaeogeographic map is based on Golonka (2002).

Fig. 2 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 2. Field photographs of the Jiwozhai reef. A. A panoramic view of the whole reef unit, with a white rectangle indicating the studied area. Note the reverse fault in the east. B. A general view shows the studied area of the reef unit. C. Enlarged field photo of the reef fragment marked in B, showing the thick or thin laminar stromatoporoids (undulating dashed line) covered on branching tabulate corals (triangles), solitary rugose corals (crosses), dendroid stromatoporoids (squares), bulbous stromatoporoid (circled line), and clay-rich micrites (fine grained sediments between the metazoan skeletons). D. An example of polished block of the Jiwozhai reef limestone showing toppled dendroid or laminar Stachyodes fasciculata Dong in Dong et al., 1989, and encrusting Stictostroma saginatum (Lecompte, 1951) in the upper area. Note the conspicuous digitation of mamelons of Stictostroma saginatum (Lecompte, 1951) in the lower right corner. Sti, Stictostroma saginatum (Lecompte, 1951); Sta, Stachyodes fasciculata Dong in Dong et al., 1989; Tha, Thamnopora cf. pansiensis Tchi, 1966.

Fig. 11 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 11. Stromatoporoid Stachyodes fasciculata Dong in Dong et al., 1989, from the Jiwozhai reef, Jiwozhai Member, Dushan Formation, Givetian, Middle Devonian; Dushan, Guizhou, South China. A. NIGP 177060; longitudinal section and tangential section of the dendroid form. B. NIGP 177061; longitudinal section showing the thick pachysteles and thin pachystromes. C. NIGP 177062; C1, longitudinal section of the bulbous form; C2, enlargement of C1, illustrating regular skeleton; C3, tangential section showing the autotubes and astrorhizal canals; C4, enlargement of C2, showing the coarsely striated microstructure (arrow).

Fig. 9 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 9. Stromatoporoids from the Jiwozhai reef, Jiwozhai Member, Dushan Formation, Givetian, Middle Devonian; Dushan, Guizhou, South China. A, B.?Habrostroma laminosum (Lecompte, 1952) A. NIGP 177055; longitudinal section of the laminar form; B. NIGP 177056; B1, longitudinal section of the high domical form; B2, poor preservation of tangential section showing the dense structure; B3, enlargement of B1, showing possible microreticulate microstructure (arrow). C. Parallelopora sp., NIGP 177057; C1, longitudinal section, note the microreticulate microstructure; C2, tangential section showing the autotubes.

Fig. 5. Stromatoporoid Gerronostromaria grossum Dong, 1974, NIGP 177047 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 5. Stromatoporoid Gerronostromaria grossum Dong, 1974, NIGP 177047, from the Jiwozhai reef, Jiwozhai Member, Dushan Formation, Givetian, Middle Devonian; Dushan, Guizhou, South China. A1, longitudinal section, note the well differentiated network constructed by thin laminae and pillars; A2, tangential section showing the distinct mamelons; A3, enlargement of A1, illustrating the common occurrence of the diagenetic "clinoreticular" microstructure inside the continuous pillars; A4, enlargement of A2, showing the isolated pillars.

Fig. 1 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 1. Location and stratigraphy of the Jiwozhai reef in Dushan County, Guizhou, South China. A. Map showing southern Guizhou and northern Guangxi and the studied area in China. B. Locality of the Jiwozhai reef in Dushan County. C. Depositional successions and fossil assemblages of the supposed uppermost Eifelian to lowermost Frasnian in Dushan, Guizhou province (modified after Liao et al. 1979; Liao 2003). Abbreviations: Ei, Eifelian; Fr., Frasnian.

Fig. 4 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 4. Pie charts illustrating palaeoecological parameters of the stromatoporiod fauna. A. External morphology. B. Thickness. C. Substrate types. D. Thickness of growth interruption. Abbreviations: Ger, Gerronostromaria grossum Dong, 1974; Cla, Clathrocoilona spissa (Lecompte, 1951);?Hab, Habrostroma laminosum (Lecompte, 1952); Par, Parallelopora sp.; Pse, Pseudotrupetostroma porosum (Yang and Dong, 1979); Sal, Salairella buecheliensis (Bargatzky, 1881); Sta, Stachyodes sp.; Stac, Stachyodes costulata Lecompte, 1952; Staf, Stachyodes fasciculata Dong in Dong et al., 1989; Sti, Stictostroma saginatum (Lecompte, 1951); Syn, Synthetostroma actinostromoides Lecompte, 1951.