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290 results for “Cenomanian”
FIGURE 7. DMNH 2013-07-1942 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 7. DMNH 2013-07-1942 pelvic girdle and hind limb bones. Partial pelvis in A, right lateral view, oriented with anterior to the right. Partial pubic plate in B, ventral, and C, dorsal views. Left femur in D, anterior, E, ventral, F, proximal, G, distal, H, dorsal, and I, posterior views. Partial right tibia in J, dorsal, K, medial, L, ventral, and M, lateral views. Dotted line in G indicates margin of acetabulum.
FIGURE 4. HMNS-10 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 4. HMNS-10-TM, shell of Gehennachelys maini comb. nov., in A, dorsal, B, ventral, C, right lateral, D, anterior, and E, posterior views. Note separate scales for A-B, C, and D-E.
FIGURE 2. DMNH 2013-07-1942 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 2. DMNH 2013-07-1942, Gehennachelys maini comb. nov. skull: A, dorsal photograph; B, dorsal line drawing; C, ventral photograph; D, ventral line drawing; E, right lateral photograph; F, right lateral line drawing; G, left lateral photograph; H, left lateral line drawing. Arrow indicates anterior orientation for A-D. For E and F, anterior is to the right. Abbreviations: ac= acromion; cm= condylus mandibularis; ct= cavum tympani; fr= frontal; fst= foramen stapediotemporale; ju= jugal; mx= maxilla; or= orbit; pa=parietal; po= postorbital; pm= premaxilla; pr= prootic; qj= quadratojugal; qu= quadrate; so= supraoccipital; sq= squamosal.
FIGURE 3. DMNH 2013-07-1942 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 3. DMNH 2013-07-1942 carapace in A, dorsal, and B, ventral views. Plastron in C, dorsal, and D, ventral views. E corresponds with the red box in C, showing the left humerus, rotated 180°. Arrow indicates anterior orientation for A-D. Scale increments in mm for E.
FIGURE 5. DMNH 2013-07-1942 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 5. DMNH 2013-07-1942 vertebrae. Cervical vertebrae in A, left lateral, B, anterior, and C, posterior views. Ventral view of indeterminate dorsal vertebrae in D, with anterior to the right.
FIGURE 1 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 1. Location and geologic position of the Woodbine Group. A, General stratigraphic sequence and timescale for the Cretaceous of central and north central Texas showing the position of the Woodbine Group. Terrestrial deposits represented by stippled intervals. Time scale based on Gradstein et al. (2004) and Denne et al., 2016, and modified from Noto et al. (2022). B, Map of Woodbine surface exposures in the study area showing position of localities where fossils were discovered. Exposures are stippled, water bodies are solid gray. 1 = Arlington Archosaur Site, 2 = Grapevine Lake southwest shore.
FIGURE 9 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 9. Plot of Plastron Length/Carapace Length by Anterior Plastral Lobe Length/Posterior Plastral Lobe Length for baenid taxa and Glyptops, which have associated carapaces and plastra. Proportions of Gehennachelys maini comb. nov. from HMNS-10-TM. Data on other taxa from Archibald (1977, table 57), Lyson and Joyce (2009a, b), Larson et al. (2013), Sullivan et al. (2013), Lively (2015), and Lyson et al. (2019). See Table 3 for raw data. Graph generated in Microsoft Excel. Grouping abbreviations: EUB= Eubaeninae; NEU= Neurankylus spp.; PLT= Palatobaeninae/ Plesiobaena grade. Squares indicate phylogenetically ungrouped taxa (non-baenodd baenids and Glyptops), circles indicate phylogenetically grouped taxa (Neurankylus and baenodds), and red square indicates Gehennachelys maini comb. nov.
FIGURE 8 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 8. Gehennachelys maini comb. nov. shell reconstruction, based on DMNH 2013-07-0696, DMNH 2013-07- 0704, DMNH 2013-07-0712, DMNH 2013-07-0784, DMNH 2013-07-1703, DMNH 2013-07-1708, DMNH 2013-07- 1942, and HMNS-10-TM. Red lines indicate estimated sulci. Abbreviations: ab= abdominal scale, an= anal scale, ce= cervical scale, eg= extragular scale, fe= femoral scale, gu= gular scale, hu= humeral scale, im= inframarginal scale; ma= marginal scale, pec= pectoral scale, pl= pleural scale, ve= vertebral scale.
FIGURE 10 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 10. Gehennachelys maini comb. nov. histological thin sections: A, DMNH 2013-07-1703, an indeterminate juvenile costal, and B, DMNH 2013-07-0588, a probably fourth costal. Scale bars equal 1 mm. C, closeup of vascularized external cortex and transition to cancellous bone, with growth marks indicated by blue arrowheads, D, internal cortex with intercalated vascular rows from DMNH 2013-07-0588, and E, sutural sockets of DMNH 2013-07-1703. Abbreviations: CB= cancellous bone, ECO= external cortex, ICO= internal cortex.
FIGURE 11 in A revision of "Trinitichelys" maini (Testudinata: Baenidae) and additional material of its new genus from the Lewisville Formation (Woodbine Group, Cenomanian), Texas, USA
FIGURE 11. Results of phylogenetic analyses for Gehennachelys maini comb. nov., produced from the modified matrix Rollot et al. (2022b), with 170 minimum trees and 367 steps (CI= 0.35; RI= 0.71): A) Consensus 50% majorityrule phylogenetic tree of Baenidae; B) Strict consensus tree. Yellow stars indicate Gehennachelys maini comb. nov.
FIGURE 3 in Histology of spinosaurid dinosaur teeth from the Albian-Cenomanian of Morocco: Implications for tooth replacement and ecology
FIGURE 3. (A-E) Teeth SNSB-BSPG 2008 XXXVII 1a–5a in mesial (left) and lingual (right) view. All scale bars equal 1 cm.
Fig. 1 - MSNM i29340 in Short Communication Evidence of mysid swarm behaviour (Crustacea: Malacostraca) from the Cenomanian (Late Cretaceous) of Hakel, Lebanon
Fig. 1 - MSNM i29340. The mass mortality event, natural light. (x 0.6). / L'evento di mortalità di massa, luce naturale. (x 0.6).
Fig. 2 - MSNM i29340. Selected specimens. A in Short Communication Evidence of mysid swarm behaviour (Crustacea: Malacostraca) from the Cenomanian (Late Cretaceous) of Hakel, Lebanon
Fig. 2 - MSNM i29340. Selected specimens. A) close-up of morphotype 1. (x4). B) morphotype 1 (T1) and morphotype 2 (T2), natural light. (x 1.6) Abbreviations: cxp) carapace, th) thorax, pl) pleon, t) telson. / Esemplari selezionati. A) ingrandimento del morfotipo 1. (x4). B) morfotipo 1 (T1) e morfotipo 2 (T2), luce naturale. (x 1.6) Abbreviazioni: cxp) carapace, th) torace, pl) addome, t) telson.
Fig. 8 in Calcareous Algae (Dasycladales, Udoteaceae) From The Cenomanian Altamira Formation Of Northern Cantabria, Spain
Fig. 8 Udoteacean algae from the Cenomanian of Cantabria, Spain. a-t Boueina iberica n. sp. u-w Boueina hochstetteri Toula. Thin-sections: LR 202 (a), LR HG-5 (b, d-e, g-k, m-t), LR 110 (c), LR 2 (f, l), LR 170 (u, w), LR 202 (v).
Fig. 7 in Calcareous Algae (Dasycladales, Udoteaceae) From The Cenomanian Altamira Formation Of Northern Cantabria, Spain
Fig. 7 Dasycladalean algae from the Cenomanian of Cantabria, Spain. a-d Frederica aff. coniconvexa Dieni, Massari & Radoičić, 1985. e-f Terquemella div. sp. Thin-sections AM 2 (a-d, f), S 135 (e).
Fig. 4 in Calcareous Algae (Dasycladales, Udoteaceae) From The Cenomanian Altamira Formation Of Northern Cantabria, Spain
Fig. 4 Examples of preservation of primary aragonitic microfossils (benthic foraminifera and algae). a-b Coscinoconus sp. and Epistomina sp. showing lamellar microstructure. c Halimeda sp. 1. Thin-sections: Co 41 (ab), LR 110 (c). Scale bars 0.2 mm.
Fig. 1 in Calcareous Algae (Dasycladales, Udoteaceae) From The Cenomanian Altamira Formation Of Northern Cantabria, Spain
Fig. 1 Locality map of the study area with indication of the Liencres (Playa de Somocuevas), Cobreces–Toñanes and La Rabia sections (modified from Wiese, 1997).
Text-fig. 2. Structure division of the Blansko Graben with position of the borehole V-134 (modified after Čech, unpublished report). in Spesovicornea Pacltovae Gen. Nov. Et Sp. Nov., A New Elateroid Sporomorph From The Bohemian Cenomanian (Czech Republic)
Text-fig. 2. Structure division of the Blansko Graben with position of the borehole V-134 (modified after Čech, unpublished report).
Text-fig. 3. Borehole section in the Blansko Graben with lithology, distribution of palynomorphs, macroflora and macrofauna (modified after Čech, unpublished report). 1 – Spesovicornea pacltovae, 2 – Platanus sp., 3 – Myrtophyllum angustum (VEL.) KNOBOCH, 4 – Gleichenia sp.), 5 – percentage of land-derived palynomorphs, 6 – percentages of marine palynomorphs, 7 – glauconite, 8 – pyrite nodules, 9 – macrofauna, 10 – productive palynological samples, 11 – carbonized roots, 12 – conglomerate, 13 – sandstone, 14 – claystone, 15 – coal, 16 – granite and granodiorite of the Brno pluton. in Spesovicornea Pacltovae Gen. Nov. Et Sp. Nov., A New Elateroid Sporomorph From The Bohemian Cenomanian (Czech Republic)
Text-fig. 3. Borehole section in the Blansko Graben with lithology, distribution of palynomorphs, macroflora and macrofauna (modified after Čech, unpublished report). 1 – Spesovicornea pacltovae, 2 – Platanus sp., 3 – Myrtophyllum angustum (VEL.) KNOBOCH, 4 – Gleichenia sp.), 5 – percentage of land-derived palynomorphs, 6 – percentages of marine palynomorphs, 7 – glauconite, 8 – pyrite nodules, 9 – macrofauna, 10 – productive palynological samples, 11 – carbonized roots, 12 – conglomerate, 13 – sandstone, 14 – claystone, 15 – coal, 16 – granite and granodiorite of the Brno pluton.
Figure 2 in A new species of the genus Trematosphindus Li et Cai, 2021 (Coleoptera: Sphindidae) from Cenomanian Taimyr amber
Figure 2. Trematosphindus kirejtshuki sp. n., PIN 3426/258, head and prosternum, ventral view, Taimyr amber.
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