Find research datasets worth reusing

opencc-by-4.0Aug 2021View details →

Fig. 2 in First record of chimaeroid fish Ischyodus from the Upper Jurassic of southwestern Gondwana

Fig. 2. Stratigraphic section of the levels were the studied material was recovered. Modified from Quinzio and Varela (2015).

opencc-by-4.0Nov 2021View details →

Fig. 3 in A large pterosaur femur from the Kimmeridgian, Upper Jurassic of Lusitanian Basin, Portugal

Fig. 3. Histological thin section of femur of indeterminate dsungaripteroid pterosaur species (SHN.013) from the Upper Jurassic, Praia da ArmoreiraPorto Novo Formation, Peniche, Portugal. A1, overview of the complete section, revealing densely vascularized, fibrolamellar bone tissue. Growth marks except for those forming an EFS) and secondary bone tissue are absent; A2, magnified part of the bone cortex. Here, an endosteal lamellar layer which lines the whole medullary cavity can be seen, as well as distinct Sharpey's fibers which run across the cortex, angled at 36º; A3, magnified part of the fibrolamellar bone tissue, showing a plexiform network of primary osteons. At the periosteal margin, an EFS is clearly visible; A4, detailed picture of the EFS. Abbreviation: EFS, external fundamental system.

opencc-by-4.0Nov 2021View details →

Fig. 2. A in A large pterosaur femur from the Kimmeridgian, Upper Jurassic of Lusitanian Basin, Portugal

Fig. 2. A partial proximal right femur of a large indeterminate dsungaripteroid pterosaur (SHN.013) from the Kimmeridgian, Upper Jurassic, Praia da Armoreira-Porto Novo Formation, Peniche, Portugal. In ventral (posterior) (A1), dorsal (anterior) (A2), medial (A3), lateral (A4), distal (A3), and proximal A6) views; A7, drawing of the distal end showing the thickness of the cortex compared to the lumen. Note that the sketch is about twice the scale of the images. The red dashed lines in A2 and A3 indicate the site where the histological section was taken.

opencc-by-4.0Nov 2021View details →

Fig. 1 in A large pterosaur femur from the Kimmeridgian, Upper Jurassic of Lusitanian Basin, Portugal

Fig. 1. Geological overview of the locality of SHN.013 in Portugal. A. Map of Portugal, with a focus on the geology of the Peniche area. B. Close-up of the Atlantic coast near Peniche, showing the age of the sediments. C. Specimen excavation site, the arrow points towards the location of the specimen. D. SHN.013 at the moment of discovery, after removing the loose sediment to identify the extension of the bone at its distal end.

Fig. 2 in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 2 Succession of the Upper Jurassic-lowermost Cretaceous limestones in the FO1 profile with stratigraphic range of the identified microfossils.

Fig. 6 Foraminifera. a-c, e, f in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 6 Foraminifera. a-c, e, f Trocholina conica (Schlumberger). Subaxial (a-c), and oblique (e, f) sections; a – thin section FO2-A1(3); b – thin section FO1-C(1); c – thin section FO2-A1(2); e – thin section FO1-F2; f – thin section FO2-A1. d?Saracenaria sp., thin section FO2-B8. g Mohlerina basiliensis (Mohler), oblique-tangential section; thin section FO-10A. h, i Coscinoconus alpinus Leupold in Leupold & Bigler, subaxial sections; thin section FO-10A. j, l-o Epistominidae. j – thin section FO2-B5; l – thin section FO1-A1; m – thin section FO1-F(1); n – thin section FO1-D; o – thin section FO2-B3. k Longitudinal section through a nodosariid foraminifera; thin section FO3. p, q Spirillina spp. Axial sections. p – thin section FO1-A0(1); q – thin section FO2-B4. r, s, v Lenticulina spp. Subequatorial (r, v) and subaxial (s) sections; r – thin section FO2-B10; s – thin sections FO2-A1; v – thin section FO1-C1. t, u Encrusting foraminifera. t – encrusting agglutinated foraminifera, thin section FO1-E; u – Bullopora sp., thin section FO1-F92).

Fig. 9 Microbial crusts and sponges. a in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 9 Microbial crusts and sponges. a Laminated, fine-peloidal stromatolitic structure; thin section FO1-F2(2). b Lithistid(?) sponge; thin section FO2-B6(2). c-e Microbial crust around a sediment fragment containing different bioclasts showing encrusting Koskinobulina socialis Cherchi & Schroeder (white arrows in d and e = close-up views of c). The arrow in c points to a saccdocomid ossicle); thin section F1-G. f Rivularia/Cayeuxia type cyanobacteria; thin section FO1-10B. g Calpionella alpina Lorenz; thin section FO4. h Microbial-ferruginous crust; thin section FO2-A1. i Muranella parvissima (Dragastan); thin section FO1-H(2).

Fig. 1 in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 1 Location of the studied section: a Location of the Hăghimaş Nappe within the Eastern Carpathians, based on the geotectonic map of Romania (Săndulescu, 1984). b Location of the Fagul Oltului Valley on the geological outline map of the Hăghimaş Mountains (based on Săndulescu, 1975).

Fig. 5 Foraminifera. a-i in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 5 Foraminifera. a-i Bramkampella arabica Redmond. Longitudinal (subaxial) (a, b), longitudinal-tangential (c), oblique (d, e, h), and transverse (f, g, i) sections; thin section FO4. j Textularia sp., thin section FO1-G(2). k-m Mayncina sp. k – thin section FO9B; l, m – thin section FO9A. n, o Protopeneroplis cf. ultragranulata (Gorbatchik). Subaxial (n) and subequatorial (o) sections; thin section FO1-H(2). p Nautiloculina cf. bronnimanni Arnaud-Vanneau & Peybernès, subaxial section; thin section FO1- H(2). q, r Reophax spp. q – thin section FO9-A; r – thin section FO5.

Fig. 4 Calcareous algae. a-e in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 4 Calcareous algae. a-e Actinoporella/Clypeina sp. Different sections through laterals; a, d – thin section FO7-A; b, c – thin section FO7-C; e – thin section FO1-H. f-h Salpingoporella pygmaea (Gümbel). Oblique (f, g) and transverse (H) sections; f, g – thin section FO1-H(2); g – thin section FO1-H. i Charophyte gyrogonite; j, k Terquemella sp.; thin section FO8. l Rajkaella bartheli Bernier. Section of the distal part of the primary lateral and the secondary laterals; thin section FO4.

Fig. 3 in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 3 Succession of the Upper Jurassic limestones in the FO2 profile with the stratigraphic range of the identified microfossils.

Fig. 7 Planktonic crinoids. a-w in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 7 Planktonic crinoids. a-w Saccocoma sp. Different sections of secondibrachials. a, v – thin section FO2-B1C(2); b, u – thin section FO2-A1(2); c – thin section FO2-B10; d, i – thin section FO2-B9; e, k – thin section FO1-D; f, l, m, p, q, t, w – thin section FO1-F2(2); g, r – thin section FO1-F2; h, s – thin section FO2-B6(2); j – thin section FO1-G2.

Fig. 8 Incertae sedis microorganisms and agglutinated worm tubes. a-i in Upper Jurassic To Lowermost Cretaceous Microfossils From The Hăghimaş Mountains (Eastern Carpathians, Romania)

Fig. 8 Incertae sedis microorganisms and agglutinated worm tubes. a-i Crescentiella morronensis (Crescenti) in longitudinal-oblique (a, c, i), oblique (b, d, e, f), and transverse (e, h) sections; a, c – thin section FO1-B (c = closeup view of the middle part in a); b – thin section FO2-B8; d – thin section FO2-A1(3); e, f – thin section FO1-E (f = close-up view of the middle part in e). g – thin section FO1-A1; h – thin section FO2-A1; i – thin section FO1- F2(2). j-n Terebella lapilloides (Münster). Longitudinal (l), longitudinal-oblique (k, n), and transverse (j, m) sections; j – thin section FO2-B10; k – thin section FO1-B; l, m – thin sections FO1-A0; n – thin section FO2-A1.

FIGURE 7 in First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany

FIGURE 7. Palaeoart depiction of †Toarcocephalus morlok gen. et sp. nov. swimming in the twilight of the Posidonia Shale Sea. The post-cranium is based on †'Coccolepis' liassica and †Coccolepis bucklandi. Artwork by S. Cooper.

FIGURE 6 in First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany

FIGURE 6. Cranial reconstruction of †Toarcocephalus morlok gen. et sp. nov. with missing regions based on reconstruction of 'Coccolepis' liassica in Gardiner (1960). Missing or speculative areas are indicated with a dashed line and coloured in grey. Abbreviations: ag = angular; an = antorbital; br = branchiostegal rays; cl = cleithrum; d = dentary; dpt = dermopterotic; dsph = dermosphenotic; esc = extrascapular; g = gular plate; hyo = hyomandibula; io.c = infraorbital sensory canal; j = jugal; msc = mandibular sensory canal; mx = maxilla; na = nasal; nar = external naris; op = opercle; poc = postorbital canal; pop = preopercle; ro = rostral; scl = supracleithrum; scr = sclerotic ring; sop = subopercle.

FIGURE 3. SMNS 52044 in First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany

FIGURE 3. SMNS 52044, †Toarcocephalus morlok gen. et sp. nov. (paratype), skull and post-cranial elements preserved in ventro-lateral (left) view as a regurgitalite. (A), overview of specimen – skull exposed in left ventrolateral view. Much of the orbital region has been infilled with resin. (B), interpretive line drawing. Abbreviations: an = antorbital; ag = angular; cbl? = ceratobranchial?; chy = ceratohyal; cl = cleithrum; d = dentary; dpt = dermopterotic; esc = extrascapular; fr = frontals; g = gular plate; ha/nur = haemal/ neural arches and spines; hbl? = hypobranchials?; hyo = hyomandibula; ptr? = pterygiophores; m.sc = mandibular sensory canal; mpt = metapterygoid; mx = maxilla; na? = nasal?; op = opercle; pop = preopercle; scu? = preanal scute?; scr = sclerotic ring plate; sop = subopercle; t = teeth. Scale bar is equal to 20 mm.

FIGURE 4 in First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany

FIGURE 4. †Toarcocephalus morlok gen. et sp. nov., details of jaws, palatoquadrate, and teeth. (A) maxillary teeth in SMNS 52044 – notice the smooth texture of the bone externa. Please note that some of the smaller damaged teeth on the maxilla are highlighted. (B) close-up of left palate, upper and lower jaws of SMNS 59978. (C), line drawing with surrounding matrix highlighted with false colour. Abbreviations: ag = angular; chy = ceratohyal; d = dentary; ecpt = ectopterygoid; enpt = endopterygoid; dpal = dermopalatine; hhy = hypohyal; mpt = metapterygoid; mx = maxilla; pmx = premaxilla; pmx.t = toothed region of premaxilla; scr = sclerotic ring; t = tooth crowns. Scale bars equal 10 mm.

FIGURE 1 in First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany

FIGURE 1. Locality map and stratigraphy of the Posidonienschiefer Formation at Holzmaden, showing the distribution of coccolepidids in the formation. (A) Simplified map of Germany showing the location of Stuttgart. (B) State map of Baden-Württemberg showing regional exposure of the Posidonienschiefer Formation with the Holzmaden area indicated with a star. (C) Map of the Holzmaden area with a star indicating the collection locality. (D) Stratigraphic log of the Posidonienschiefer Formation at Holzmaden showing the collection horizon for the new coccolepidid fish. Modified from Cooper et al. (2022).

FIGURE 2. SMNS 59978 in First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany

FIGURE 2. SMNS 59978, †Toarcocephalus morlok gen. et sp. nov. (holotype), preserved in left internal view. (A), imperfect skull exposed in internal view. (B), line drawing of specimen. Abbreviations: br = branchiostegal rays; chy = ceratohyal; cl? = cleithrum?; d = dentary; dpal = dermopalatine; dpt = dermopterotic; dsph = dermosphenotic; enpt = endopterygoid; esc = extrascalpular; hhy = hypohyal; hyo = hyomandibula; io.c = infraorbital sensory canal; j = jugal; mx = maxilla; op = opercle; p = parietal; pmx = premaxilla; pop = preopercle; scl = supracleithrum; sc.l = lateral line scales; sop = subopercle. Scale bar equals 10 mm.

FIGURE 5 in First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany

FIGURE 5. †Toarcocephalus morlok gen. et sp. nov., details of the pectoral girdle and lateral line. Holotype specimen SMNS 59978, photograph (A) and line drawing (B). Abbreviations: hyo = hyomandibula; lsc = lateral line sensory canal; mx = maxilla; op = opercle; pop = preopercle; ppscl = dorsal process of the supracleithrum; pu = punctations; sc.l = lateral line scales; scl = supracleithrum (.r = right;.l = left); sop = subopercle. Scale bar equals 5 mm.