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303 results for “quarry”
FIGURE 7 in Pygocephalomorphan crustaceans further emphasise the similarities between the Carboniferous Piesberg quarry in Germany and the Mazon Creek Lagerstätte in North America
FIGURE 7. Plot of the eumalacostracan shields of Anthracaris gracilis (Meek and Worthen, 1865) from the Carboniferous of Germany (1.587A, Pal.590-2, 1.228A) and of A. gracilis from Mazon Creek, USA. Values for A. gracilis from Brooks (1962).
FIGURE 5 in Pygocephalomorphan crustaceans further emphasise the similarities between the Carboniferous Piesberg quarry in Germany and the Mazon Creek Lagerstätte in North America
FIGURE 5. Anthracaris gracilis (Meek and Worthen, 1865) from the Carboniferous of Germany. (A) Virtually overlaid part and counterpart of specimen 1.529. (B) Same as A, but structures colour marked. Abbreviations: ab = antenna basipod; ant = antenna; atl = antennula; ec = eye cornea; es = eye stalk; lb = labrum; md = mandible; ml = maxillula; mx = maxilla; pl = pleon; sc = scaphocerite; tp1–8 = thoracopod 1–8; ts1–8 = thoracic segment 1–8.
FIGURE 4 in Pygocephalomorphan crustaceans further emphasise the similarities between the Carboniferous Piesberg quarry in Germany and the Mazon Creek Lagerstätte in North America
FIGURE 4. Anthracaris gracilis (Meek and Worthen, 1865) from the Carboniferous of Germany. Digital microscopy images of shields. (A–G) Specimen 1.587 in dorsal view. (A–C) Part. (D, E) Counterpart. (A, D) Non-polarized co-axial light. (B, E) Polarized co-axial light. (C) Ring light. (F) Detail of B, antero-lateral shield corner. (G) Detail of B, rostrum. (H) Detail of Pal590-2, antero-lateral shield corner, mirrored. Images of the counterpart are mirrored. Abbreviations: als = antero-lateral spine; g = groove; ls = lateral spine; p = punctuations; r = rostrum.
FIGURE 2 in Pygocephalomorphan crustaceans further emphasise the similarities between the Carboniferous Piesberg quarry in Germany and the Mazon Creek Lagerstätte in North America
FIGURE 2. Anthracaris gracilis (Meek and Worthen, 1865) from the Carboniferous of Germany. Digital microscopy image of part (A–C) and counterpart (D–F) (specimen 1.529), in ventral view. (A, D) Ring light. (B, D) non-polarized coaxial light. (C, F) polarized co-axial light.
FIGURE 3 in Pygocephalomorphan crustaceans further emphasise the similarities between the Carboniferous Piesberg quarry in Germany and the Mazon Creek Lagerstätte in North America
FIGURE 3. Anthracaris gracilis (Meek and Worthen, 1865) from the Carboniferous of Germany. Digital microscopy images of shields. (A–D) Dorsal view of specimen 1.228. (A, B) Part. (C, D) Counterpart. (E, F) Dorsal view of specimen Pal590-2. (A, C, E) Non-polarized co-axial light. (B, D, F) Polarized co-axial light. Images of the counterparts are mirrored. Abbreviations: als = antero-lateral spine; ls = lateral spine; r = rostrum.
FIGURE 1 in Pygocephalomorphan crustaceans further emphasise the similarities between the Carboniferous Piesberg quarry in Germany and the Mazon Creek Lagerstätte in North America
FIGURE 1. Schematic drawing of a pygocephalomorphan shield in dorsal aspect, showing the measurements taken for the morphometric analysis. 1: Length of rostrum, 2: Length of shield, 3: Width of anterior (outer) margin, 4: Medial width, 5: Width of posterior margin, 6: Length of antero-lateral spine.
FIGURE 13 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 13. Strict consensus of 23 MPTs demonstrating the relative position of TATE-099 using the matrix of Whitlock and Wilson (2020).
FIGURE 7 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 7. Left (A) and right (B) ectopterygoid right and left lateral views (C, D). Scale bar equals 10 cm. Artwork by Ryan Steiskal.
FIGURE 11 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 11. Computed tomography of the right dentary is displayed in coronal (left) and sagittal (right cross section, illustrating the presence of 1-2 unerupted teeth per alveolar position. The unerupted teeth were segmented for 3D rapid prototyping (lower left).
FIGURE 2 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 2. Left (A, B) and right (C, D) premaxillae in dorsal ventral views, respectively. Scale bar equals 10 cm. Artwork by Ryan Steiskal.
FIGURE 1. A in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 1. A. Depositional area of the Upper Jurassic Morrison Formation, and location of the Nail Quarry in south- eastern Wyoming, and B. the stratigraphic location of Nail Quarry in the Morrison Formation.
FIGURE 10 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 10. Computed tomography of the right and left maxillae (A-B, respectively) are displayed in coronal (upper) and sagittal (lower) cross sections; the left premaxilla (C) is shown in sagittal (left) and coronal (right) cross sections. The unerupted teeth (ii=first unerupted tooth) of the maxilla (D; left) and premaxilla (D; right) were segmented for 3D rapid prototyping. Note: proceeding caudally, the number of unerupted teeth in the maxilla declines from 5 (ii-vi) to 2 (ii-iii).
FIGURE 9 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 9. Right dentarty and surangular in A) left lateral view, and B) right lateral view. Scale bar equals 10 cm. Artwork by Ryan Steiskal.
FIGURE 12 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 12. Strict consensus of 47 MPTs demonstrating the relative position of TATE-099 using the matrix of Tschopp and others (2015).
FIGURE 5 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 5. Left pterygoid (i, iv), quadrate (ii, v), and quadratojugal (iii, vi) in A) dorsal and B) ventral views. Scale bar equals 10 cm. Artwork by Ryan Steiskal. Abb: pt, pterygoid; q, quadrate; qj, quadratojugal.
FIGURE 3 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 3. Right maxilla in (A) dorsal and (B) ventral views with the left ectopterygoid (i) and left palatine (ii) adhered to the ventral surface. Scale bar equals 10 cm. Artwork by Ryan Steiskal. Abb: aof, antorbital fenestra; paof, preantorbital fenestra.
FIGURE 8. Reconstructed cast and 3D in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 8. Reconstructed cast and 3D model of the braincase of TATE-099 in dorsal view (A, B), ventral view (C, D), posterior view (E, F), right lateral view (G, H), and left lateral view (I, J). Scale bar equals 10 cm. Abb: bo, basoccipital; bpr, basipterygoid process; bs, basisphenoid; bt, basal tuber; cpr, crista prootica; eo, exoccipital-opithsotic; f, frontal; fm, foramen magnum; p, parietal; pas, parasphenoid; pft, posttemporal fenestra; po, postorbital; popr, paroccipital process; so, supraoccipital; snc, sagittal nuchal crest; stf, supratemporal fenestra.
FIGURE 14. 3D in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 14. 3D model of a cast of the erupted tooth row of TATE-099 in (A) labial and (B) lingual views with crown heights (C) and comparative measurements of the unerupted replacement teeth (D). Scale bar equals 5 cm.
FIGURE 6 in A novel feeding mechanism of diplodocid sauropods revealed in an Apatosaurine skull from the Upper Jurassic Nail Quarry (Morrison Formation) at Como Bluff, Wyoming, USA
FIGURE 6. Reconstruction of the skull of TATE-099 in A) left lateral view, B) right lateral view, C) dorsal view, and D) ventral view. Scale bar equals 10 cm. Artwork by Ryan Steiskal.
FIGURE 8 in Description of contents of unopened bamboo corsets and crates from Quarry Ig/WJ of the Tendaguru locality (Late Jurassic, Tanzania, East Africa) as revealed by medical CT data and the potential of this data under paleontological and historical aspects
FIGURE 8. Examples of bone elements from sauropod dinosaurs found in the bamboo corsets, link to corresponding movies. A) "Ig 230", cervical rib of Giraffatitan brancai, and cluster of vertebrae and bone fragments of Dysalotosaurus; B) "Ig 281", presumable dorsal vertebral fragments and pneumatic transverse process of a sauropod (this bamboo corset contains also a dentary remain of Dysalotosaurus); C) "Ig 310, 311, 312, 313, 314", pneumatic transverse process of dorsal vertebra; D) "Ig 498", neural arch with clearly visible hyposphene and broken neural spine of titanosauriform sauropod. Close-up of visualization of isolated MtII of Giraffatitan, E) in dorsal view F) in plantar view. Scale bar in A-D is 100 mm, in E-F it is 50 mm. Abbreviations: bf, bone fragment; ccost, corpus of cervical rib (of Giraffatitan); df, dentary fragment (of Dysalotosaurus); hypo, hyposphene; mt, metatarsal; na, neural arch; nsp, neural spine; prcost, caudal process of cervical rib (of Giraffatitan); postzyg, postzygapophysis; prtrans, transverse process of vertebra; tib,tibia; vc, vertebral centrum; vf, vertebral fragment. Videos of A) to D) available at the PE You Tube channel (https://www.youtube.com/channel/UCF6IBDiGbut- DrVada60Izyg)
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Allen Brain Atlas
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OpenNeuro
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