FIGURE 1. Location maps: 1, a part of Europe with main localities of the material studied and indication of the main study area in the Polish Carpathians; 2, the main study area in the Polish Carpathians with indication of several localities of the material studied or reported occurrences of Tubulichnium rectum.

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FIGURE 2. Holotype of Tubulichnium rectum (Fischer-Ooster, 1858) and some other key specimens described by Fischer-Ooster (1858) and Książkiewicz (1977), which are housed in the Naturhistorisches Museum der Burgergemeinde Bern (NMBE) in Switzerland and in the Nature Education Centre of the Jagiellonian University - Museum of Geology, Kraków, Poland, respectively: 1, holotype, originally Halymenites rectus Fischer-Ooster and Chondrites targionii (Cht), Gurnigel Flysch (Maastrichtian), Seeligraben near Gurnigelbad (Switzerland), specimen NMBE 5017471. Detail illustrated in 2 marked by the quadrangle; 2, detail of 1; 3, original of Halymenites minor Fischer-Ooster, 1858 and Chondrites intricatus (Chi) from Gurnigel Flysch (Maastrichtian), Seeligraben near Gurnigelbad (Switzerland), specimen NMBE 5017474; 4, original of Halymenites incrassatus Fischer-Ooster, 1858, Fähnernspitz, Upper Cretaceous, E Switzerland, specimen NMBE 5017470; 5, holotype of Tubulichnium incertum Książkiewicz, 1977 (yellow arrow), other specimen of the same ichnotaxon (Tr) and Scolicia vertebralis (Sv); Ropianka Formation (Inoceramian Beds), Upper Cretaceous-Paleocene, Bachów, Skole Nappe, specimen UJTF 938; 6, detail of 5 showing the holotype.

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FIGURE 3. Tubulichnium rectum (Fischer-Ooster, 1858) on upper bedding surfaces from different formations: 1, on the upper surface of turbiditic marl with Chondrites intricatus (Chi), Pagliaro Formation (Paleocene), Cabella Ligure, Northern Apennines, Italy, field photograph; 2, curved example of T. rectum (Tr), Scolicia isp. (Sc) and Phycosiphon incertum (Ph), Ropianka Formation (Upper Cretaceous), Wara, Skole Nappe, Carpathians, Poland, UJTF 1426, Książkiewicz collection; 3, several specimens of T. rectum (Tr), some cross cut by Chondrites intricatus (Chi), Pagliaro Formation (Paleocene), Cabella Ligure, Northern Apennines, Italy, field photograph; 4, specimen with two (1, 2) superimposed pellet pavements. Inoceramian Beds (Upper Cretaceous-Paleocene), Słopnice, INGUJ144P190a; 5; specimens with elevated edges and collapsed roof, Inoceramian Beds (Upper Cretaceous-Paleocene), Słopnice, INGUJ144P140; 6, example of spindle-shaped burrow enlargement, Pagliaro Formation (Paleocene), Cabella Ligure, Northern Apennines, Italy, field photograph; 7, T. rectum cut by Ophiomorpha annulata (Oa), Inoceramian Beds (Upper Cretaceous-Paleocene), Słopnice, INGUJ143P66.

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FIGURE 4. Tubulichnium rectum (Fischer-Ooster, 1858) on the lower bedding surfaces (1-3) of and in longitudinal (4) and transverse (5-10) cross-sections of turbiditic sandstones from the Inoceramian Beds (Upper-Cretaceous-Paleocene at Słopnice: 1, note external and internal parts INGUJ144P176; 2, note sandy mantle covering the pelleted part, INGUJ144P193a, 3, note wrinkles on the mantle, INGUJ144P187a; 4, longitudinal cross section (Tr), INGUJ144P193; 5-10, transverse sections, E - INGUJ144P182d, F - INGUJ144P180, G - INGUJ144P192b, H - INGUJ144P170a, I - INGUJ144P190, J - INGUJ144P192c, K - INGUJ144P192.

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FIGURE 5. Macroscopic and microscopic and SEM observations of Tubulichnium rectum (Fischer-Ooster, 1858) occurring in turbiditic sandstones of the Inoceramian Beds (Upper Cretaceous-Paleocene), Słopnice, Poland (1, 4-8) and turbiditic marls of the Pagliaro Formation (Paleocene), Italy (2, 3): 1, specimen with elevated edges and bent down roof as seen on upper bedding surface (INGUJ144P195); 2, 3, depressions of pellets in the burrow margin after pellets have been partly or completely removed (INGUJ196P36 and 38); 4, photomicrograph of transverse cross-section; note deformed laminae above the collapsed burrow; 5, 6, burrow margin showing depressions of pellets that have been removed by weathering; 7, part of split pellets in place consisting of clay minerals and siliciclastic silt grains; 8, outer part of a split pellet showing platy minerals oriented ±parallel to surface.

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FIGURE 6. Short sections showing position of Tubulichnium rectum and associated traces fossils in strata of the Ropianka Formation (Inoceramian Beds) at Słopnice, Magura Nappe, Carpathians, Poland. GPS coordinates: section A: 49°42.982'N, 020°20.448'E; section B: 49°42.974'N, 20°20.453'E, section C: 49°42.610'N, 20°20.687'E.

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FIGURE 7. Stratigraphic range of Tubulichnium rectum (Fischer-Ooster, 1858) and number of formations per stage in which it occurs.

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