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8 results for “Semigothograptus”
FIGURE 7 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 7. SEM pictures of nassa type genicular hoods of Gothograptus nassa Holm, 1890 and Semigothograptus meganassa (Rickards & Palmer, 2002). A – D. Semigothograptus meganassa, ZPAL G. 54 / 1, 1649.2 m, Bartoszyce IG- 1 drill core, Poland, uppermost part of dubius / nassa Biozone, A. hood of th 2 2 with marked surface bandages (arrow). B. enlargement showing pustules on parallel bandages (arrow), C. hood of th 1 2 with marked space between bandages (arrow), D. hood of th 3 2, surface bandages (arrow). E – H. Gothograptus nassa, Bartoszyce IG- 1, 1655.8 m, dubius / nassa Biozone, E. whole hood of th 3 2, irregular bandages arrowed, specimen ZPAL G. 54 / 3. F – G. enlargement of hood, ZPAL G. 54 / 9, F. showing pustules on parallel bandages (arrows), G. presenting edges of subjacent bandages (arrows). H. fragment of hood of mature specimen with thick layer of irregular bandages with distinctive pustules and parallel bandages (arrow), ZPAL G. 54 / 6.
FIGURE 6 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 6. Silurian paleogeographic map with occurrences of Semigothograptus new genus. Localities and graptolite data derived from the following literature sources; 1. Northeastern Poland (Baltica): this paper. 2. United Kingdom (Avalonia): Rickards & Palmer 2002. 3. Bohemia: KozłowskāDawidziuk et al. 2001. 4. Thuringia (Saxo-Thuringia): Jaeger 1991.
FIGURE 5 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 5. Stratigraphical ranges of the Semigothograptus meganassa (Rickards & Palmer, 2002) in the Homerian at United Kingdom (Rickards & Palmers 2002), Czech Republic (Kozłowska et al. 2001), Germany (Maletz 2010), and Poland (Kozłowska this paper). Abbreviations: L. Hom.—Lower Homerian, Rep.—Republic.
FIGURE 3 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 3. Light photos of Semigothograptus meganassa (Rickards & Palmer, 2002), specimen broken into two parts, ZPAL G.54/2, Bartoszyce IG-1 drill core, depth 1649.2 m; A. with sediment before cleaning in HF; B–C. two sides of lower part of the fragment after cleaning in HF. Abbreviation: lat. ap. rod—lateral apertural rod.
FIGURE 4 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 4. Comparison of the main structures of tubaria used in this study. A. Papiliograptus papilio Lenz & Kozłowska- Dawidziuk, 2002, Šiupyliai-69 borehole, Lithuania; B. Semigothograptus meganassa (Rickards & Palmer, 2002), ZPAL G.54/ 1, Bartoszyce IG-1 drill core, depth 1649.2 m; C-D. Gothograptus nassa Holm, 1890, C. young colony, reverse side, ZPAL G.54/4, Bartoszyce IG-1 drill core, depth 1656.8 m, D. mature colony with broken distal end, obverse side, ZPAL G.54/5, Bartoszyce IG-1 drill core, depth, 1655.8 m. Scale 1 mm for all pictures. Abbreviations: anc.—ancora, sl.—sleeve, umbr.— umbrella.
FIGURE 2 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 2. Proximal ends showing ancora umbrella looping meshes of A. Gothograptus nassa Holm, 1890 early growth stage, ZPAL G.54/7, Bartoszyce IG-1 drill core, depth 1656.8 m; B. Semigothograptus meganassa (Rickards & Palmer, 2002), ZPAL G.54/1, Bartoszyce IG-1 drill core, depth 1649.2 m.
FIGURE 1 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 1. Tubaria of A–C. Gothograptus nassa Holm, 1890 and D. Semigothograptus meganassa (Rickards & Palmer, 2002) from dubius/nassa Biozone, Bartoszyce IG-1 drill core, Poland. A. Gothograptus nassa, obverse view of mature tubarium with destroyed distal end, long morphotype, ZPAL G.54/5, 1655.8 m, B. latero-ventral view of mature tubarium with appendix, short morphotype, ZPAL G.54/8, 1658.8 m, C. long appendix, ZPAL G.54/10, 1656.8 m. D. Semigothograptus meganassa, obverse view, ZPAL G.54/1, 1649.2 m, uppermost part of dubius/nassa Biozone.
FIGURE 7 in A new generic name, Semigothograptus, for Gothograptus? meganassa Rickards & Palmer, 2002, from the Silurian post- lundgreni Biozone recovery phase, and comparative morphology of retiolitids from the lowermost upper Homerian (upper Wenlock)
FIGURE 7. SEM pictures of nassa type genicular hoods of Gothograptus nassa Holm, 1890 and Semigothograptus meganassa (Rickards & Palmer, 2002). A–D. Semigothograptus meganassa, ZPAL G.54/1, 1649.2 m, Bartoszyce IG-1drill core, Poland, uppermost part of dubius/nassa Biozone, A. hood of th22 with marked surface bandages (arrow). B. enlargement showing pustules on parallel bandages (arrow), C. hood of th12 with marked space between bandages (arrow), D. hood of th32, surface bandages (arrow). E–H. Gothograptus nassa, Bartoszyce IG-1, 1655.8 m, dubius/nassa Biozone, E. whole hood of th32, irregular bandages arrowed, specimen ZPAL G.54/3. F–G. enlargement of hood, ZPAL G.54/9, F. showing pustules on parallel bandages (arrows), G. presenting edges of subjacent bandages (arrows). H. fragment of hood of mature specimen with thick layer of irregular bandages with distinctive pustules and parallel bandages (arrow), ZPAL G.54/6.
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