Find research datasets worth reusing

opencc-zeroNov 2021View details →

FIG. 8 in Pliensbachian corals from the Western Tethys

FIG. 8. — Araiophyllum liasicum Beauvais, 1986: A, transverse section in the holotype MNHN.F.A32023; B, lateral view of a corallite of the holotype MNHN.F.A32023; C, transverse section of a corallite of the holotype MNHN.F.A32023 (skeleton in dark); D, longitudinal section of a corallite of the holotype MNHN.F.A32023; E, detail in transverse section of the axial part of one corallite of the holotype MNHN.F.A32023; F, transverse section of one corallite of the holotype MNHN.F.A32023 (skeleton in dark). Scale bars: A, 4 cm; B, 1 cm; C, 2 mm; D, E, 1 mm; F, 5 mm.

opencc-zeroNov 2021View details →

FIG. 5 in Pliensbachian corals from the Western Tethys

FIG. 5. — Astraeomorpha confusa (Winkler, 1861): A, distal view of the specimen CPUN AM16165-1; B, detail in transverse thin section of some calices of the specimen CPUN AM16165-1; C, detail in longitudinal natural section of the pennular ornamentation of septa of the specimen CPUN AM16165- 1; D, thin section transverse to the calices and longitudinal superficial to one of the branches of the specimen CPUN AM16165-1. Scale bars: A, 1 cm; B, C, 1 mm; D, 4 mm.

Fig. 11 in Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria

Fig. 11. Combined radiolarian and ammonite dating of Lower Jurassic deposits on Mount Rettenstein. The upper age limit of the grey marly limestone is constrained with ammonites, determined in the overlying red nodular limestone, numerical age after Gradstein et al. (2012). Revised radiolarian dating of samples from the Dürrnberg Formation is shown for comparison.

Fig. 6 in Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria

Fig. 6. Radiolarians from Mount Rettenstein, Austria, Pliensbachian, Early Jurassic. A. Empirea sp. 1, sample Rö416. B. Acaeniotylopsis ghostensis (Carter in Carter et al., 1988); sample Rö416. C, D. Liassobetraccium bavaricum (Kozur and Mostler, 1990); sample Rö37. E, F. Liassobetraccium verticispinosum (Kozur and Mostler, 1990); sample Rö37. G–J. Tozerium filzmoosense Cifer sp. nov. G. Holotype, sample Rö416: 170717. H. Paratype, sample Rö416: 170503. I. Paratype, sample Rö416: 170739. J. Paratype, sample Rö37: 171105. K–O. Loupanus pliensbachicus Cifer sp. nov. K. Holotype, sample Rö416: 170562. L. Paratype, sample Rö416: 170559. M. Paratype, sample Rö416: 170757. N. Paratype, sample Rö416: 170704. O. Paratype, sample Rö416: 170560. P, Q. Loupanus sp. 1; sample Rö417. R, S. Thurstonia? timberensis Whalen and Carter in Carter et al., 1998; sample Rö416. T. Thurstonia? minutaglobus Whalen and Carter in Carter et al., 1998; sample Rö416. U–W. Thurstonia? robusta Cifer sp. nov. U. Holotype, sample Rö417: Rö417_093.V. Paratype, sample Rö417: Rö417_090. W. Paratype, sample Rö417: Rö417_098.

Fig. 5 in Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria

Fig. 5. Microfacies of grey marly limestone with high abundance of radiolarians and sponge spicules in micritic matrix. Bioturbation is indicated by brighter and darker areas. A. Sample Rö416. B. Sample Rö417.

Fig. 3. A in Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria

Fig. 3. A. View of the complete Mount Rettenstein complex from the southwest. B. Position of the studied section in the Weitenhaus cirque, the oval indicates the location where the studied samples were collected. C. Schematic sketch of the structural build of Mount Rettenstein with the three main tectonic units (from Auer et al. 2006). Structural Unit I: The primary part of the Tirolic mega-unit which, in contrast to the higher structural units, stayed ( more or less) in place relative to the basis of the Upper Tirolic thrust sheet. In the Mount Rettenstein region, Permian to early Middle Triassic strata make up the succession above the Greywacke Zone basement (Ganss et al. 1954). Structural Unit II: This intermediate, rather thin sheet is mainly made up of a laterally variable mega-slide succession of the Middle Jurassic Hallstatt Mélange. It is thought to have achieved its present position in the hangingwall of a normal fault (Auer et al. 2006). Structural Unit III: The topmost Mount Rettenstein unit corresponds to the Lower to Upper Jurassic Mount Rettenstein succession sensu stricto in the sense of Auer et al. (2009). It is suggested to have been emplaced along a thrust fault (Auer et al. 2006).

Fig. 2 in Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria

Fig. 2. Stratigraphic table with lithostratigraphic names and main tectonic events of the Jurassic of the Northern Calcareous Alps with their variations depending on the palaeogeographic position (after Gawlick et al. 2009). The different facies belts and therefore also the formations belong to depositional realms, which roughly correspond to the later formed tectonic units. The outer shelf region can only be reconstructed from blocks in Middle to Upper Jurassic mélanges and is, therefore, not completely understood in all details. The grey limestone succession from Mount Rettenstein shows characteristics of both the Scheibelberg and the Dürrnberg formations (in bold). Estimated palaeogeographic positions of the studied section are indicated. Abbreviations: Cret., Cretaceous; Fm., Formation; Lst., Limestone.

Fig. 1. A in Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria

Fig. 1. A. Structural overview maps of the Alpine orogen, showing the situation of the central Northern Calcareous Alps. B. The middle sector of the central Northern Calcareous Alps with locations mentioned in the text indicated (modified from Frisch and Gawlick 2003). Abbreviations: Re, Mount Rettenstein; BD, Bad Dürrnberg; Te, Teltschengraben.

opencc-by-4.0Dec 2022View details →

FIGURE 6 in A fragmentary leptonectid ichthyosaurian from the lower Pliensbachian of Luxembourg

FIGURE 6. Diagnostic dental features of Early Jurassic ichthyosaurians with small and elongated tooth crowns. The distribution of concave ring at the level of the acellular cementum ring, which we term here "annulus" (indicated by orange arrows) appears restricted to leptonectids but are not fully expressed in all the teeth of an individual. (A) OUM J10305. (B) BRSMG Ce9856. (C) NHMUK R PV14370. (D) drawing extracted from Fraas (1892). (E) MNHNL LM226. (F) MNHNL TU112. (F) SMNS 81965. (H) MNHNL TV178.

opencc-by-4.0Dec 2022View details →

FIGURE 5 in A fragmentary leptonectid ichthyosaurian from the lower Pliensbachian of Luxembourg

FIGURE 5. Location and anatomy of selected remains of the leptonectid ichthyosaurian MNHNL LM226. (A) silhouette with the location of selected remains; the total size of the animal is difficult to assess. (B) photograph and interpretation of the rostrum in?anterior view. (C, D) rostrum in lateral views. (E) Detail of a tooth, magnified three times with respect to the other elements, showing the elongated crown and the near absence of striations on the root and acellular cementum ring. (F–H) fragmentary dorsal centrum in (F) medial, (G) lateroventral, (H) ventral views. (I) large rib fragment in internal view. (J) proximal cross-section of a rib, showing the 8-shaped cross-section. (K) cross-section of a rib, showing the 8-shaped cross-section. (L) distal cross-section of a rib showing the loss of one of the anterior/posterior grooves.

opencc-by-4.0Dec 2022View details →

FIGURE 2 in A fragmentary leptonectid ichthyosaurian from the lower Pliensbachian of Luxembourg

FIGURE 2. Photograph of the Cloche d'Or locality taken on 17 June 2021 during the main excavation activities. Most of the bone fragments (MNHNL LM226) were found in the exposed layer between the two arrows.

opencc-by-4.0Sep 2019View details →

Mechanisms and drivers of belemnite body-size dynamics across the Pliensbachian-Toarcian crisis

Supplementary material of the manuscript Rita et al., Mechanisms and drivers of belemnite body-size dynamics across the Pliensbachian-Toarcian crisis, submited to Open Science Royal Society. Set of .ply files of CT scans of belemnite rostra. The first 27 files correspond to bed P925; the next 5 files correspond to P949; the next 18 correspond to P961; the next 5 correspond to P976; the next 38 specimens correspond to bed P982 and the last 35 files correspond to bed P984. The number of each file is the specimen number, as listed in the supplementary material of the article. For details on the scanning details or on the age of the specimens, please see the supplementary material of the article.   The supplementary figures ("supplementary figures_ESM8.docx" file) and tables ("supplementary tables.xlsx" file) and the R script used for the statistical analysis ("supplement_rscript.docx" file) are also provided.  For more details contact patricia.rita@fau.de.

Fig. 11 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 11. Cladogram showing the phylogenetic relationships of Cryonectes neustriacus gen. et sp. nov. Tree length: 133. CI = 0.52, RI = 0.63. For character list and taxa/ character matrix see SOM 1 and SOM 2. Bremer indices are indicated for each node.

Fig. 9 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 9. Pliosaurid plesiosaur Cryonectes neustriacus gen. et sp. nov., MAE2007.1.1(J), holotype; Late Pliensbachian, Early Jurassic, Calvados, France. A. Cervical vertebrae 1 to 5 in right lateral view. B. Vertebrae 1 to 5 in anterior view. C. Vertebrae 1 to 5 in ventral view.

Fig. 7 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 7. Pliosaurid plesiosaur Cryonectes neustriacus gen. et sp. nov., MAE 2007.1.1(J), holotype; Late Pliensbachian, Early Jurassic, Calvados, France. A. Skull in left lateral view. Posterior part of the right mandibular ramus in lateral (B) and lingual (C) views. Photographs (A1, B1, C1) and explanatory drawings (A2, B2, C2). D. Section of the right mandibular ramus (see Fig. 2 and 4 for actual line of section). E, F. Teeth.

Fig. 10 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 10. Pliosaurid plesiosaur Cryonectes neustriacus gen. et sp. nov., MAE2007.1.1(J), holotype; Late Pliensbachian, Early Jurassic, Calvados, France. A. Vertebrae 6 to 10 in right lateral view. B. Vertebrae 6 to 10 in anterior view. C. Vertebrae 6 to 10 in ventral view. D. An isolated neural arch in left lateral view.

Fig. 6 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 6. Pliosaurid plesiosaur Cryonectes neustriacus gen. et sp. nov., MAE 2007.1.1(J), holotype; Late Pliensbachian, Early Jurassic, Calvados, France. A. Rostrum in dorsal view. B. Close−up photograph of the parasphenoid and posterior interpterygoid vacuities. Close−up photograph of the anterior interpterygoid vacuity (C) and the posterior part of the palate in oblique anterior view (D). E. Rostrum in ventral view.

Fig. 5 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 5. Pliosaurid plesiosaur Cryonectes neustriacus gen. et sp. nov., MAE 2007.1.1(J), holotype; Late Pliensbachian, Early Jurassic, Calvados, France. Skull in ventral view (A) and explanatory drawing (B).

Fig. 3 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 3. Pliosaurid plesiosaur Cryonectes neustriacus gen. et sp. nov., MAE 2007.1.1(J), holotype; Late Pliensbachian, Early Jurassic, Calvados, France. Skull in dorsal view (A) and explanatory drawing (B).

Fig. 2 in A new pliosaurid from the Pliensbachian, Early Jurassic of Normandy, Northern France

Fig. 2. Nannofossil assemblages present in the matrix of the specimen Cryonectes neustriacus sp. nov., MAE 2007.1.1(J) from Upper Pliensbachian, Calvados, France. A, B. Thick specimens of Crepidolithus impontus. C. Thin specimen of Crepidolithus impontus. D. Parhabdolithus liasicus. E. Mitrolithus elegans. F. Crepidolithus crassus. G. Similiscutum cruciulus. H. Lotharingius frodoi. I. Calyculus sp. ind. Scale bars 5 µm.