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31 results for “Drumian”
FIG. 4 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 4. — Agraulos ceticephalus (Barrande, 1846): A, internal cast of a cranidium attached to the thorax with preserved exoskeleton (NFM F-3476 from 5.97 m); B, internal cast of a cranidium attached to the thorax, partly covered with sediment, eye ridges and glabellar furrows slightly visible (NFM F-3951 from 7.10 m); C, internal cast of a cranidium attached to the thorax with preserved exoskeleton, eye ridges present (NFM F-3957 from 3.30 m); D, internal cast of a cephalon attached to the thorax, librigena attached, eye ridges present (NFM F-3621 from 9.08 m); E, mould of a cranidium attached to the thorax, spines on axial rings present, coarse ornamentation on thorax visible (NFM F-3476 from 5.98 m); F, mould of a cranidium attached to the thorax, occipital spine preserved (sedimentary filling laying in glabellar mould), coarse ornamentation on thorax visible (NFM F-3946 from 4.27 m); G, internal cast of a cranidium attached to the thorax, projection of axial spine preserved (NFM F-3831 from 7.43 m); H, internal cast of a cranidium attached to the thorax, eye ridges present (NFM F-2787 from 7.56 m); I, internal cast of a cranidium attached to first thoracic segments, eye ridges and glabellar furrows preserved (NFM F-3778 from 5.96 m). Scale bars: 1 mm.
FIG. 8 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 8. — Bailiella aequalis (Linnarsson, 1882) internal cast of a cranidium (NFM F-3811 from 5.90 m). Scale bar: 1 mm.
FIG. 2 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 2. — Lithology of the type locality of the Manuels River Formation, range chart of the here described species. Agnostid biozones from Hildenbrand et al. (2021) and polymerid biozones from Howell (1925).
FIG. 11 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 11. — Paradoxides davidis Salter, 1863: A, internal cast of a pygidium attached to the posterior segments of the thorax (NFM F-3918 from 11.87 m); B, mould of a thorax with attached pygidium, thorax with preserved ornamentation (NFM F-3912 from 11.85 m); C, internal cast of a pygidium (NFM F-3909 from 15.05 m); D, internal cast of a thorax with dislocated cranidium and librigenae, ornamentation on one librigena preserved (NFM F-2826 from 11.92 m). Scale bars: 5 mm.
FIG. 1 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 1. — Map of Newfoundland with the Avalon and Burin peninsulas, the capital St. John's and the study area at Manuels River, Conception Bay South, Newfoundland, Canada (marked by a star). Abbreviations: CBS, Conception Bay South; FP, Fosters Point; HC, Highland Cove.
FIG. 10 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 10. — Meneviella venulosa (Hicks, 1872): A, B, internal cast and mould of the same juvenile specimen, venulose markings on mould visible (NFM F-3213 from 10.00 m); C, internal cast of cranidium, specimen covert in white (NFM F-3655 from 16.26 m); D, disarticulated internal cast of cranidium (NFM F-3600 from 15.73 m). Scale bars: 1 mm.
FIG. 6 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 6. — Jincella? applanata (Hicks in Salter & Hicks, 1869); A, B, internal cast and mould of the same specimen, glabellar furrows and ornamentation on internal cast preserved (NFM F-3398 from 8.94 m); C, internal cast of a cranidium attached to the thorax, ornamentation and occipital node preserved (NFM F-3401 from 8.94 m); D, internal cast of a cranidium with one librigena attached, venulose markings on librigena and cranidium anterior of eye ridges preserved (NFM F-3595 from 15.30 m); E, internal cast of a trapezoidal shaped cranidium, occipital ring and venulose markings anterior of eye ridges preserved, NFM F-3594 from 15.30 m; F, internal cast of trapezoidal shaped cranidium, densely packed scattered granuels preserved, fixigenae slightly separated (NFM F-2949 from 6.15 m); G, internal cast of a round shaped cranidium, some granuels have dents preserved, fixigenae slightly separated (NFM F-3297 from 6.18 m); H, internal cast of a round shaped cranidium, occipital ring and ornamentation preserved (NFM F-3616 from 9.33 m); I, mould of a round shaped cranidium, occipital node and ornamentation preserved (NFM F-3405 from 8.94 m). Scale bars: 1 mm.
FIG. 15 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 15. — Plutonides hicksii (Salter, 1866b): A, internal cast of a cranidium, occipital node preserved, with a vertical groove crossing the cranidium (NFM F-2781 from 4.52 m); B, internal cast of a cranidium with preserved exoskleleton (NFM F-3894 from 2.96 m); C, internal cast of a cranidium, occipital node and ornamentation on fixigenae preserved (NFM F-2861 from 2.53); D, internal cast of a cranidium, with a vertical groove crossing the cranidium (NFM F-3258 from 4.06 m). Scale bar: 3 mm.
FIG. 14 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 14. — Plutonides hicksii (Salter, 1866b): A, internal cast of a juvenile cranidium, smallest described specimen in this work with long preglabellar field (NFM F-3177 from 10.27 m); B, internal cast of a juvenile cranidium, deep glabellar furrows, ornamentation on fixigenae preserved (NFM F-3220 from 7.59 m); C, internal cast of a juvenile cranidium, deep glabellar furrows (NFM F-3026 from 9.63 m); D, internal cast of a juvenile cranidium, with occipital node and ornamentation on fixigenae preserved (NFM F-3176 from 10.27 m); E, internal cast of a juvenile cranidium, short preglabellar field, occipital node preserved (NFM F-3067 from 3.33 m); F, internal cast of a juvenile cranidium, short preglabellar field, glabellar furrows less deeply impressed than in junger specimens A-D, S2 furrow shallower axial to discontinuous (NFM F-3947 from 4.28 m). Scale bars: 1 mm.
New exceptionally-preserved panarthropods from the Drumian Wheeler Konservat-Lagerstätte of the House Range of Utah
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FIG. 3 in Biostratigraphy and taxonomy of polymerid trilobites of the Manuels River Formation (Drumian, middle Cambrian), Newfoundland, Canada
FIG. 3. — Visualization of measurement terms in cranidia (A) and pygidia (B).
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