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Fig. 5 in Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland

Fig. 5. The Lower Cretaceous heteromorph ammonite Crioceratites coniferus Busnardo, Charollais, Weidmann, and Clavel, 2003 from the Kościeliska Marl Formation in the Lejowa Valley, Tatra Mountains, Poland. A. GEO.1.2018. B. ZPAL Am. 25/1 (silicone cast). C. G/1729/MT. All in lateral view.

Fig. 3 in Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland

Fig. 3. The Lower Cretaceous ammonites from the Kościeliska Marl Formation in the Lejowa Valley, Tatra Mountains, Poland. A, C–E. Criosarasinella cf. subheterocostata Reboulet, 1996. A. ZPAL Am. 25/19. C. ZPAL Am. 25/7. D. ZPAL Am. 25/17. E. ZPAL Am. 25/14. B. Calcite valve of aptychus Didayilamellaptychus seranonis (Coquand, 1841), ZPAL Am. 25/12. F. Spitidiscus cf. cankovi Vašíček and Michalík, 1986, ZPAL Am. 25/9. G. Olcostephanus densicostatus (Wegner, 1909), ZPAL Am. 25/4. All in lateral view.

Fig. 1 in Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland

Fig. 1. Location of ammonite collection area (asterisk shows fossil sampling locality, 49°16.109' N, 19°51.194' E). Satellite views from the Google Maps.

Fig. 4. A–C. The Lower Cretaceous heteromorph ammonite Crioceratites primitivus Reboulet, 1996 in Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland

Fig. 4. A–C. The Lower Cretaceous heteromorph ammonite Crioceratites primitivus Reboulet, 1996 from the Kościeliska Marl Formation in the Lejowa Valley, Tatra Mountains, Poland. A. G/1728/MT. B. ZPAL Am. 25/2. C. ZPAL Am. 25/15. D. Distribution of anomiid individuals on a specimen of C. primitivus (ZPAL Am. 25/15). E–G. Close up views of bivalves attached to the body chambers of the ammonite C. primitivus (ZPAL Am. 25/15). All in lateral view.

Fig. 6 in Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland

Fig. 6. The Lower Cretaceous organicwalled dinoflagellate cysts from the Kościeliska Marl Formation in the Lejowa Valley, Tatra Mountains, Poland. A. Cometodinium habibii Monteil, 1991. B. Cymososphaeridium validum Davey, 1982. C. Phoberocysta neocomica (Gocht, 1957) Millioud, 1969. D. Stanfordella? cretacea (Neale and Sarjeant, 1962) Helenes and LucasClark, 1997. E. Prolixosphaeridium sp.. F. Endoscrinium campanula (Gocht, 1959) Vozzhennikova, 1967. G. Phoberocysta neocomica (Gocht, 1957) Millioud, 1969. H. Bourkidinium elegans Torricelli, 1997. I. Wallodinium krutzs chii (Alberti, 1961) Habib, 1972. J. Cribroperidinium orthoceras (Eisenack, 1958). A–I sampled from ZPAL Am. 25/2; J sampled from ZPAL Am. 25/7.

Fig. 2 in Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland

Fig. 2. Outcrop of the Lower Cretaceous sequence of the Kościeliska Marl Formation, the Western Polish Tatra Mountains (arrow indicates approximate location of collected samples). Photo taken by Andrzej Gaździcki, 3 August 2018.

FIGURE 12 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA

FIGURE 12. Comparison of slopes between the entire Cedar Mountain Formation and BYU fossil localities.

FIGURE 8 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA

FIGURE 8. Number of cells assigned to each fossil potential value for the model. TABLE 6. Reclassified values for OLI/TIRS bands for revised model.

FIGURE 5 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA

FIGURE 5. Differences of means between fossil localities and Cedar Mountain Formation (X1-X2). TABLE 3. Reclassified values for OLI/TIRS bands used in weighted suitability analysis.

FIGURE 1 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA

FIGURE 1. Early Cretaceous Cedar Mountain Formation surface exposure, elevation, and fossil localities.

FIGURE 11 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA

FIGURE 11. Comparison of aspects between the entire Cedar Mountain Formation and BYU fossil localities.

FIGURE 2 in An Early Cretaceous Sphenophyllum or a hatchling turtle?

FIGURE 2. Pan-chelonioidea indet. turtles (A, B, C, D, E) and extant turtle carapace in ventral view (F, G). A. Partially preserved carapace in ventral view (MONQ-602). B. Outline of MONQ-602 specimen indicating the preserved bones and texture. C. Close-up of the serrated sutural contact between neural 1 and costals 1, see red rectangle in B for reference. D. Close-up of the bone growth showing radial pattern and sutures between left costal 3 and 4, see red rectangle in B for location. E. Partially preserved carapace in ventral view showing probable scars from the insertion of thoracic vertebrae into the neurals (LLC-65). F. Extant Lepidochelys olivacea showing the complete bone morphology of the carapace in ventral view (QM-J85545). G. Same from F showing outline of diagnostic bones and sutures. Abbreviations: c, costal bone; n, neural bone; nu, nuchal bone; pf, post-nuchal fontanel; p, peripheral bone; r, rib; rh, rib head; sp, suprapygal bone. Scale bars equal 1 cm (A, B, C, D, E), 9 cm (F, G).

FIGURE 1. A in An Early Cretaceous Sphenophyllum or a hatchling turtle?

FIGURE 1. A. Reconstruction of "Sphenophyllum colombianum" (MONQ-602) from Huertas (2003). Note the apparent wedge-shaped structures that resemble leaves borne in whorls and having veins that radiate from their attachment point. B, C. Sphenophyllum emarginatum from the Paleozoic Mazon Creek Flora (IL, USA) for comparison (PP- 16865, PP-58015). Scale bars equal 1 cm.

Figure 2 in Amiid remains (Actinopterygii, Amiiformes) from the Early Cretaceous Marizal Formation (Tucano Basin) of Northeastern Brazil

Figure 2. – Scale of the Amiidae-Vidalaminae, UERJ-PMB 541, from the Amargosa Bed of the Marizal Formation (Tucano Basin), Northeastern Brazil. A: Nearly complete scale of the predorsal midline region of the fish body showing its external side with the four fields and the initium. B: Detail of the anterior field showing the radial ridges and four annuli (arrow-heads) that separate the areas of fast growth; the inset represents a detail of the anterior field and shows the thin striation of the parallel crests. C: Detail of the scale initium and the posterior field; the asterisk points the initial centre of the scale. AF: anterior field; fg: areas of fast growth; LF: lateral field; PF: posterior field. Scales bars: A = 10 mm; B = 500 µm; C = 2 mm.

FIGURE 2 in Taxonomic utility of Early Cretaceous Australian plesiosaurian vertebrae

FIGURE 2. Measured morphometric parameters of vertebrae (specimen QM F12719); CW: centrum width; CH: centrum height; CL: centrum length; H of NC – height of neural canal; W of NC – width of neural canal; W of ZYG. – width of zygapophyses; H of NS – height of neural spine; angle – angle of zygapophysis with centre of centrum.

FIGURE 15 in Taxonomic utility of Early Cretaceous Australian plesiosaurian vertebrae

FIGURE 15. Principal Components Analysis for anterior cervicals of Australian xenopsarian specimens (including previously described QM F3567 from Sachs (2004) and Opallionectes andamookaensis from Kear (2006), but excluding polycotylid QM F12719) and non-Australian elasmosaurids using shape variables (HI, BI, BHI). Data for QM F3567 and RM FR271 from Sachs (2004); Opallionectes andamookaensis from Kear (2005a); Elamosaurus platyurus, Thalassomedon haningtoni, Callawayasaurus colombiensis and Cm Zfr 115 from O'Keefe and Hiller (2006); Aristonectes quiriquinensis from Otero et al. (2014); Albertonectes vanderveldei from Kubo et al. (2012); Vegasaurus molyi from O'Gorman el. (2015); Tuarangisaurus keyesi from Hiller et al. (2017); AMNH FARB 1495, AMNH FARB 5835, Styxosaurus snowii, and AMNH FARB 2554 from Otero (2016); Aristonectes parvidens from O'Gorman (2016a); Kawanectes lafquenianus from O'Gorman (2016b); Lagenanectes richterae from Sachs et al. (2017) and Jucha squalea from Fischer et al. (2020).

FIGURE 3 in Taxonomic utility of Early Cretaceous Australian plesiosaurian vertebrae

FIGURE 3. Specimen QM F12719. A. Dorsal vertebra, anterior view. B. Dorsal vertebra, lateral view. C. Cervical vertebra, anterior view. D. Cervical vertebra, ventral view showing foramina subcentralia (f.s.). E. Cervical vertebra, dorsal view showing foramen on neural arches. Scales shown on figure.

FIGURE 9 in Taxonomic utility of Early Cretaceous Australian plesiosaurian vertebrae

FIGURE 9. Specimen QM L39 – anterior cervicals. A. Lateral view with prominent ridge. B. Anterior view. C. Ventral view with foramina subcentralia. D. Anterior view. E. Lateral view showing rib facet. F. Ventral view showing foramina subcentralia. Scales shown on figure.

FIGURE 12 in Taxonomic utility of Early Cretaceous Australian plesiosaurian vertebrae

FIGURE 12. Normalised vertebral position (cervicals 0-1; dorsals 1-2; caudals 2-3) plotted against vertebral length index (VLI) for Australian plesiosaurians and non-Australian elasmosaurids. Data for QM F3567 and RM FR271 from Sachs (2004); Opallionectes andamookaensis from Kear (2005a); Elamosaurus platyurus, Thalassomedon haningtoni, Callawayasaurus colombiensis, and Cm Zfr 115 from O'Keefe and Hiller (2006); Vegasaurus molyi from O'Gorman el. (2015); AMNH FARB 1495, AMNH FARB 5835, and AMNH FARB 2554 from Otero (2016); Aristonectes parvidens from O'Gorman (2016a); Kawanectes lafquenianus from O'Gorman (2016b); Lagenanectes richterae from Sachs et al. (2017), and Jucha squalea from Fischer et al. (2020).

FIGURE 6 in Taxonomic utility of Early Cretaceous Australian plesiosaurian vertebrae

FIGURE 6. Specimen RM FR269. A. Cervical vertebra, anterior view with weakly fused neural arches and neural spine. B. Cervical vertebrae, lateral view with rib facets borne wholly on the centrum. C. Cervical vertebra, ventral view showing paired foramina subcentralia (f.s.). D. Dorsal vertebra, anterior view with rib facets (diapophyses) borne wholly on neural arches. Scales shown on figure.