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FIGURE 6 in Paleoclimate and paleoecology of the Upper Oligocene Tehuacán Formation, Puebla State, Mexico, as determined from wood anatomical characters

FIGURE 6. Distance dendogram displaying the comparison of the tracheal elements of the Tehuacán Fm. paleoflora with extant communities, fossil ones and Southern California ecological categories in the tracheal elements comparison. *Fossil paleofloras.

FIGURE 5 in Paleoclimate and paleoecology of the Upper Oligocene Tehuacán Formation, Puebla State, Mexico, as determined from wood anatomical characters

FIGURE 5. Projection of the first two principal components displaying the contribution (cos2) of each anatomical character. (X1) Growth rings, (X2) Vessel grouping, (X3) Vessel frequency, (X4) Vessel diameter, (X5) Vessel wall thickness, (X6) Helical sculpture, (X7) Intervascular pit aperture diameter, (X8) Alternate intervessel pits, (X9) Opposite intervessel pits, (X10) Scalariform intervessel pits, (X11) Simple perforation plates, (X12) Scalariform perforation plates, (X13) Fibre Wall thickness, (X14) Fibre lumen diameter, (X15) Tracheids, (X16) Fibrotracheids, (X17) Libriform fibres, (X18) Parenchyma diffuse in aggregates, (X19) Vasicentric parenchyma, (X20) Aliform parenchyma, (X21) Apotracheal parenchyma bands, (X22) Concentric parenchyma bands, (X23) Marginal parenchyma, (X24) Height of uniseriate ray (µm), (X25) Height of uniseriate ray (Nº cells), (X26) Percentage of uniseriate rays, (X27) Exclusively uniseriate rays, (X28) Width of multiseriate ray (µm), (X29) Width of multiseriate ray (Nº cells), (X30) Length of uniseriate extensions (µm), (X31) Length of uniseriate extensions (Nº cells), (X32) Storied structure, (X33) Heterocellular rays, (X34) Homocellular rays.

FIGURE 3 in Paleoclimate and paleoecology of the Upper Oligocene Tehuacán Formation, Puebla State, Mexico, as determined from wood anatomical characters

FIGURE 3. Distance dendogram showing the anatomical similarity between extant communities, fossil ones and the Tehuacán Fm. paleoflora. *Fossil paleofloras.

FIGURE 7 in Paleoclimate and paleoecology of the Upper Oligocene Tehuacán Formation, Puebla State, Mexico, as determined from wood anatomical characters

FIGURE 7. Projection of the first two principal components that displays the contribution (contrib) and spatial position of each communities within the PCA.

FIGURE 4 in Paleoclimate and paleoecology of the Upper Oligocene Tehuacán Formation, Puebla State, Mexico, as determined from wood anatomical characters

FIGURE 4. Projection of the first two principal components displaying the contribution (contrib) and spatial position of each community within the PCA.

FIGURE 2 in Paleoclimate and paleoecology of the Upper Oligocene Tehuacán Formation, Puebla State, Mexico, as determined from wood anatomical characters

FIGURE 2. Morpho-anatomic diversity of the paleoflora of the Tehuacán Fm. - A: Morphotype 2. Diffuse porosity with solitary and aggregates of vessels (2-3) with tylosis (TS). - B: Morphotype 16. Diffuse porosity with solitary and aggregate vessels (2), vasicentric and banded parenchyma bands (white arrows) (TS). - C: Morphotype 6. Detail of solitary and aggregate vessel elements with dark contents, thick walls and parenchyma bands (TS). - D: Morphotype 12. Long and wide vessel elements and multiseriate rays (RSL). - E: Morphotype 1. Vessel elements with alternate intervascular pits (RSL). - F: Morphotype 4. Short and wide vessel elements with alternating intervascular pits (TSL). - G: Morphotype 3. Biseriate rays (TSL). -H: Morphotype 19. Multiseriate rays and abundant axial parenchyma (TSL). - I: Morphotype 14. Rays mostly biseriate, some uniseriate (white arrows). Scale bar: 250 µm in A, B; 100 µm in C, D, E, G, H, I; 50 µm in F.

Figure 6 in A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Figure 6. Time-calibrated strict consensus topology obtained from both phylogenetic analyses. Out-groups are removed and all derived baenids united into the clade Baenodda.

Figure 4. The 3-D in A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Figure 4. The 3-D-rendered CT images of shells, Lakotemys australodakotensis gen. et. sp. nov., Berriasian–Barremian Lakota Formation, Fall River County, South Dakota, USA. Dorsal and ventral views of (a) OMNH 67133, the holotype, and (b) OMNH 63615. Abbreviations are as follows: co: costal; ent: entoplastron; hyo: hyoplastron; hyp: hypoplastron; mes: mesoplastron; ne: neural; per: peripheral; sp: suprapygal; xi: xiphiplastron.

Figure 1 in A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Figure 1. Map highlighting the distribution of named baenids from the Early Cretaceous of North America: Arundelemys dardeni from St. George's County, Maryland (MD); Lakotemys australodakotensis gen. et. sp. nov. from Fall River County, South Dakota (SD); Protobaena wyomingensis from Big Horn County, Montana (MT); and Trinitichelys hiatii from Montague County, Texas (TX). States are highlighted in gray, counties in black.

Figure 3. OMNH 63615, a in A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Figure 3. OMNH 63615, a partial shell, Lakotemys australodakotensis gen. et. sp. nov., Berriasian–Barremian Lakota Formation, Fall River County, South Dakota, USA. Photographs and illustrations in (a) dorsal and (b) ventral view. Dashed lines connote sutures observed in 3-D-rendered CT scans (see Fig. 4). Abbreviations are as follows: Ab: abdominal scute; co: costal; ent: entoplastron; epi: epiplastron; Ex: extragular scute; Fe: femoral scute; Gu: gular scute; Hu: humeral scute; hyo: hyoplastron; hyp: hypoplastron; IM: inframarginal scute; Ma: marginal scutes; mes: mesoplastron; ne: neural; nu: nuchal scute; Pe: pectoral scutes; per: peripheral; Ve: vertebral scute.

Figure 5. The 3-D in A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Figure 5. The 3-D-rendered CT images of a skull, Lakotemys australodakotensis gen. et. sp. nov., Berriasian–Barremian Lakota Formation, Fall River County, South Dakota, USA. OMNH 66106 in (a) dorsal, (b) ventral, (c) anterior, (d) posterior, (e) right lateral, and (f) left lateral views. Abbreviations are as follows: fr: frontal; pa: parietal; po: postorbital.

Figure 2. OMNH 67133, a in A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Figure 2. OMNH 67133, a partial shell, holotype, Lakotemys australodakotensis gen. et. sp. nov., Berriasian–Barremian Lakota Formation, Fall River County, South Dakota, USA. Photographs and illustrations in (a) dorsal and (b) ventral view. Dashed lines connote sutures observed in 3-D-rendered CT scans (see Fig. 4). Abbreviations are as follows: Ab: abdominal scute; An: anal scute; co: costal; Fe: femoral scute; Hu: humeral scute; hyo: hyoplastron; hyp: hypoplastron; Ma: marginal scutes; mes: mesoplastron; ne: neural; Pe: pectoral scutes; per: peripheral; Pl: pleural scutes; sp: suprapygal; Ve: vertebral scute; xi: xiphiplastron.

Figure 5 in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 5. Cedarosaurus site field sketch, in which the gastrolith cluster is clearly visible. Three isolated gastroliths were dispersed throughout the skeleton. Redrawn and modified from Sanders et al. (2001).

Figure 7 in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 7. Plan-view map of the SI Quarry showing a scavenged juvenile Camarasaurus with vertebrate tracks, abundant theropod teeth, and gastroliths. Redrawn and modified from Jennings and Hasiotis (2006).

Figure 4. Carbonized material with a in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 4. Carbonized material with a single gastrolith from Howe Quarry. The presence of plant matter surrounding the clast is interpreted as evidence of former stomach contents. This is specimen number D18-15 in the Sauriermuseum Aathal.

Figure 3 in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 3. Section of R. T. Bird's Howe Quarry map showing the Barosaurus bones (yellow; A – pubis; B – abdominal rib?) as well as the gastroliths seen in the photograph in Fig. 2. The bones of the Barosaurus individual were partially articulated. Redrawn and modified from Rice and Bierwert (1935) and Michelis (2003).

Figure 6 in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 6. Distribution of bones and stones at the Diplodocus "Seismosaurus" longus locality (a) and cross section of the quarry (b). Note that bone-bearing blocks occurred below the first pebble lag and that there are two concentrations of gastroliths. A defined cluster was found in the pelvic area, whereas the majority of the stones were dispersed in the area north of the bone material. Redrawn and modified from Lucas (2000), and including information from Gillette (1994) (in a) and Schwartz and Manley (1992) (in b).

Figure 1 in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 1. Studied dinosaur localities in the western USA. The surrounding line represents the extension of the Morrison Formation. Abbreviations: BCQ – Bone Cabin Quarry; CLDQ – Cleveland- Lloyd Dinosaur Quarry; DMDQ – Dry Mesa Dinosaur Quarry; DNM (CQ) – Dinosaur National Monument (Carnegie Quarry); Howe Q and HSQ – Howe Quarry and Howe Stephens Quarry; SIQ – "Something Interesting Quarry" (Camarasaurus). The red bones represent sites where gastroliths have been found in association with bones. Redrawn and modified from Dodson et al. (1980b).

Figure 2 in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 2. Photograph of gastroliths found at Howe Quarry. Next to a Barosaurus pubis (a) and an elongated bone (b), probably an abdominal rib, the cluster of 64 stones is visible. Modified from Bird (1985).