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1,301 results for “Early Cretaceous”
Figure 4 in The diet of the Early Cretaceous coelacanth †Axelrodichthys araripensis Maisey, 1986 (Actinistia: Mawsoniidae)
Figure 4. – †Axelrodichthys araripensis stomach contents (UERJ-PMB 143). A: Close-up of the inset y (Fig. 2B), (transmitted natural light) showing the various scattered fossilized bones. White asterisk pointing to the longitudinal section of a vertebra, white arrow pointing to a lower jawbone. White arrowheads pointing to the black pigmentation that surrounds the digestive tract content. B: The same section (transmitted polarized light) in A revealing different granulometries between the "digestive tract" content (wide granulations) and the surrounding soft tissue patch (thin granulations). Black asterisk and black arrow pointing respectively to the vertebra and lower jawbone. Scale bars: A, B = 200 μm).
Figure 1 in The diet of the Early Cretaceous coelacanth †Axelrodichthys araripensis Maisey, 1986 (Actinistia: Mawsoniidae)
Figure 1. – Abdominal cavity of extant and fossil coelacanths. A: Sections of a high-resolution computerized axial tomography scan of Latimeria chalumnae (adult specimen, CCC 22), showing the position of the different organs in the abdominal cavity. B: Partially crushed specimen of †Axelrodichthys araripensis (adult specimen, UERJPMB 143). Arrows point to the lung plates; Dig T, digestive tract; L, lung and lumen of the lung; Oeso, oesopha- gus. Scale bars: A = 5 mm; B = 10 mm.
Figure 2 in The diet of the Early Cretaceous coelacanth †Axelrodichthys araripensis Maisey, 1986 (Actinistia: Mawsoniidae)
Figure 2. – Calcified lung of the Cretaceous coelacanth †Axelrodichthys araripensis (UERJ-PMB 143). A-B: Two ground sections (transmitted natural light) of a partially crushed specimen. x, y, z pointing the position of the scattered fossilized bones. Black arrows pointing to bony plates of the lung and black and white asterisks to the normal gang of the fossil. (L = lumen of lung). Scale bar = 5 mm.
Figure 3 in Histology of ganoid scales from the early Late Cretaceous of the Kem Kem beds , SE Morocco : systematic and evolutionary implications
Figure 3. - Scales of Adrianaichthys pankowski (MNHN-Histos 1959). A: Cross section of a scale (transmitted natural light) showing two superimposed layers: pluristratified ganoine (black arrow), and basal plate (bp) constituted of an avascular bony tissue. Dentine is lacking; B-D: Cross sections of scales (transmitted natural light); B: Detail of pluristratified ganoine (g). In the underlying bony basal plate (bp) one can see canaliculi of Williamson (cw) and a growth mark (gm); C: Detail of the bony basal plate showing numerous Sharpey's fibres and two canaliculi of Williamson (arrow) and a growth mark (gm); D: Detail of the bony basal plate showing a dichotomy on a canaliculus of Williamson (arrowhead). Scale bars: A = 1 mm; B = 100 µm; C = 50 µm; D = 20 µm).
Fig. 4 in New Early Cretaceous spalacotheriid "symmetrodont" mammal from Japan
Fig. 4. Symmetrolestes parvus (NSM PV 20562, holotype). A. Occlusal view of the dentary as preserved in the main block. B. Outline drawing of the dentition in occlusal view. Scale bar 2 mm.
Fig. 2 in New Early Cretaceous spalacotheriid "symmetrodont" mammal from Japan
Fig. 2. Symmetrolestes parvus (NSM PV 20562, holotype). A. Lingual stereo view of the dentary. Note the ledge of matrix left along the ventral edge of the jaw, which continues toward the back bearing impressions of the condyloid and coronoid processes. B. Drawing of the jaw in approximately the same position as in A. The back of the coronoid process has been reconstructed from impressions left in the main block and the fragments preserved in the smaller block (Fig. 6). Scale bar 2 mm. The arrow indicates the position of Meckel's sulcus. The dark circle towards the back of the jaw is the mandibular foramen.
Fig. 6 in New Early Cretaceous spalacotheriid "symmetrodont" mammal from Japan
Fig. 6. Symmetrolestes parvus (NSM PV 20562, holotype). A. Stereo view of the posterior portion of the jaw in buccal view, as preserved in the smaller of the two blocks. B. Drawing of the preserved portion of the jaw. Scale bar 2 mm.
Remarkable preservation of brain tissues in an Early Cretaceous iguanodontian dinosaur
<p>Supplementary information from the paper "Remarkable preservation of brain tissues in an Early Cretaceous iguanodontian dinosaur", features in a Geological Society Publication in memory of Professor Martin Brasier, University of Oxford.</p> <p>Datasets comprise:<br> -- A single zipped image stack from two aligned concatenated CT scans of the specimen.<br> -- A .7z split zip file of the dataset as a Drishti volume, used to render the images in the paper. <br> -- SEM images of the specimen.</p>
Figure 3 in First Cretaceous teleostean otolith assemblage (Arkadelphia Formation, upper Maastrichtian) from Arkansas, USA, early Gadiformes, and the Western Interior Seaway
Figure 3. Location of the study area near Cabot, Lonoke County, Arkansas, USA.
Figure 24 in A new hadrosauriform dinosaur from the Wessex Formation, Wealden Group (Early Cretaceous), of the Isle of Wight, southern England
Figure 24. Brighstoneus simmondsi. gen. et sp. nov. Life restoration by John Sibbick.
FIG. 36 in Vertebrate paleobiodiversity of the Early Cretaceous (Berriasian) Angeac-Charente Lagerstätte (southwestern France): implications for continental faunal turnover at the J/K boundary
FIG. 36. — Reconstruction of the Angeac-Charente landscape, 140 Million years ago, © Mazan.
Text-fig. 1. Map of Primorye region, Russia. a – Razdolnaya coal basin; b – Partizansk coal basin. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 1. Map of Primorye region, Russia. a – Razdolnaya coal basin; b – Partizansk coal basin.
Text-fig. 6. Cathodoluminescence (CL) images of selected zircons from sample 160/4. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 6. Cathodoluminescence (CL) images of selected zircons from sample 160/4.
Text-fig. 7. U-Pb concordia diagram for zircons from tuff sample 160/4. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 7. U-Pb concordia diagram for zircons from tuff sample 160/4.
Text-fig. 13. Dispersed platanoid cuticle. a: LM; b: SEM, upper surface. s – stoma; b – hair base. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 13. Dispersed platanoid cuticle. a: LM; b: SEM, upper surface. s – stoma; b – hair base.
Data from: Estimates of late Early Cretaceous atmospheric CO2 from Mongolia based on stomatal and isotopic analysis of Pseudotorellia
<p>Our dataset includes 115 leaf cuticles related to two species of <em>Pseudotorellia</em> Florin from three stratigraphically similar samples at the Tevshiin Govi lignite mine in central Mongolia (~119.7–100.5 Ma, Aptian–Albian, Cretaceous). We apply a well-vetted paleo-CO<sub>2</sub> proxy based on leaf gas-exchange principles (the Franks model) to those leaves for paleo-CO<sub>2</sub> reconstruction, which requires leaf stomata and carbon isotope analysis. All cuticle measurements are summarized in this dataset. </p>
FIGURE 14 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA
FIGURE 14. Detailed comparison of model versions.
FIGURE 13 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA
FIGURE 13. Refined model results.
FIGURE 9 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA
FIGURE 9. Revised weighted suitability analysis results.
FIGURE 10 in A fossil locality predictive model using weighted suitability analysis for the Early Cretaceous Cedar Mountain Formation, Utah, USA
FIGURE 10. Number of cells assigned to each fossil potential value for the revised model.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.