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Spirolites radwanskii

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Journal Article
Published: 25 April 2018
Journal of Paleontology (2018) 92 (5): 883–895.
...Alfred Uchman; Michał Stachacz; Klaudiusz Salamon Abstract A new ichnogenus and ichnospecies, Spirolites radwanskii , is a spiral boring recognized in large limestone clasts deposited in a Miocene cliff-foot ramp. It is characterized by a semi-circular or inverted Ω-shaped cross section, gradually...
FIGURES | View All (6)
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Bored boulders with  <b>Spirolites</b> <b>radwanskii</b>  n. igen. n. isp. ( 1, 3, 4 ) IN...
Published: 25 April 2018
Figure 2. Bored boulders with Spirolites radwanskii n. igen. n. isp. ( 1, 3, 4 ) INGUJ214P/SZG1; ( 2, 5, 6 ) INGUJ214P/SZG2. ( 1, 2 ) Views of the upper surfaces of the boulders; ( 3 ) holotype of S . radwanskii n. isp.; ( 4–6 ) paratypes. S = Spirolites radwanskii n. igen. n. isp., Gc
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Morphometric parameters of  <b>Spirolites</b> <b>radwanskii</b>  n. igen. n. isp. (in mm)...
Published: 25 April 2018
Table 1 Morphometric parameters of Spirolites radwanskii n. igen. n. isp. (in mm); 33 specimens. *=minimum value is taken in the case of values ‘at least’ (>). Specimen Maximum width of trench Maximum depth Maximum size of coil Number of first-order annuli INGUJ214P/SZG1a 14
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Sketch drawings of the spiral etching traces from the Polish Miocene. ( 1 )...
Published: 25 April 2018
Figure 5. Sketch drawings of the spiral etching traces from the Polish Miocene. ( 1 ) Re-drawing of a trace from photograph by Radwański ( 1977 , pl. 10d), interpreted by him as a serpulid etching; ( 2, 3 ) Spirolites radwanskii n. igen. n. isp., top views of the negatives (rubber casts); ( 4–7
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Rubber casts of the bored surfaces of the boulders. (1) INGUJ214P/SZG1; (2)...
Published: 25 April 2018
Figure 3. Rubber casts of the bored surfaces of the boulders. (1) INGUJ214P/SZG1; (2) INGUJ214P/SZG2. S 1a–t and S 2a–f=the type material of Spirolites radwanskii n. igen. n. isp. Gc = Gastrochaenolites cf. G . cluniformis , Go = Gastrochaenolites ? orbicularis , Gt
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Details of the rubber casts ( 1–4 ) of the boulder INGUJ214P/SZG1 and a spe...
Published: 25 April 2018
Figure 4. Details of the rubber casts ( 1–4 ) of the boulder INGUJ214P/SZG1 and a specimen ( 5 ) of Spirolites radwanskii n. igen. n. isp. INGUJ214P/SZG4. ( 1 ) Four stages of development of the borings: S 1e–i=partly abraded specimens, S 1b=fully coiled, well-preserved specimen, S 1c=partly