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Taenidium

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Journal Article
Published: 04 November 2019
Scottish Journal of Geology (2019) 55 (2): 135–140.
...Paul N. Pearson; Robert J. Gooday Abstract Large un-walled backfilled burrows of the Taenidium type are known from Paleozoic deltaic marine environments worldwide where they are often associated with Diplichnites trackways. The latter are generally attributed to arthropleurid myriapods and it may...
FIGURES | View All (4)
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Arenicolites/Taenidium ichnofabric (Ar/Tae) and Taenidium ichnofabric 1 (Tae1). A, B) Ar/Tae ichnofabric located above slightly inclined surfaces in the upper part of point bars. Note the shallow tiers, the preservation of small-scale cross-bedding, and cross-cutting of Taenidium barreti by Arenicolites isp. C, D) Taenidium ichnofabric 1 (Tae1) as characterized by two superimposed Taenidium barreti suites in multiple (shallow to deep) tiers and undifferentiated burrow mottling. Tae1 occurs in the upper part of point bars(C) and in the yellowish overbank facies (D). Solid circles = zones of cross-cutting. Abbreviations: BI = bioturbation index; Ar = Arenicolites isp.; Ta = Taenidium barreti.
Published: 03 May 2023
Fig. 3 Arenicolites / Taenidium ichnofabric (Ar/Tae) and Taenidium ichnofabric 1 (Tae1). A , B ) Ar/Tae ichnofabric located above slightly inclined surfaces in the upper part of point bars. Note the shallow tiers, the preservation of small-scale cross-bedding, and cross-cutting
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Taenidium, Taenidium ichnofabric, Skolithos, and Planolites isp. in the Nugget Sandstone. Scale bar units  =  1 cm. A)Taenidium isp. “A” preserved as contrasting color to the surrounding sediment (UUIC 3332). B)Taenidium ichnofabric. C)Taenidium isp. “B” preserved in vertical cross section in concave-down orientation (photo courtesy of NPS), and D) concave-up orientation. E) Vertical Taenidium isp. “B” preserved on bedding planes as red, iron-oxidized rings. F) Cluster of Taenidium isp. “B” in vertical section. G)Skolithos and Planolites isp. in vertical section. H)P. isp. with Skolithos on bedding surface (UUIC 3333), bracket indicates common gentle vertical undulation. I)Skolithos-dominant surface in vertical cross section.
Published: 01 August 2014
Fig. 4.— Taenidium , Taenidium ichnofabric, Skolithos , and Planolites isp. in the Nugget Sandstone. Scale bar units  =  1 cm. A) Taenidium isp. “A” preserved as contrasting color to the surrounding sediment (UUIC 3332). B) Taenidium ichnofabric. C) Taenidium isp. “B” preserved
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FIGURE 9—Taenidium barretti traces. (A) Axial section of Taenidium (trace 79) on a bedding surface. Note the meniscate back-fill packets and the lack of any special wall structures (Coin diameter 25 mm). (B) Section of a Taenidium burrow in a loose block in the Muth section starting oblique to the bedding surface curving to a vertical direction with distinct meniscate back-fill packets (Watch width 40mm)
Published: 01 April 2001
FIGURE 9 — Taenidium barretti traces. (A) Axial section of Taenidium (trace 79) on a bedding surface. Note the meniscate back-fill packets and the lack of any special wall structures (Coin diameter 25 mm). (B) Section of a Taenidium burrow in a loose block in the Muth section starting oblique
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Sedimentology of the tide-influenced meander-loop deposits of the Lower Red Unit (Tremp Formation). A) Panoramic field view and stratigraphic log. Note the sigmoidal shape of the lateral accretion units, separated by reactivation surfaces (rs). B) Summary of sedimentological characteristics, including the results of this study. Modified from Díez-Canseco et al. (2014, 2016). Abbreviations: Ar/Tae = Arenicolites/Taenidium ichnofabric; Tae1 = Taenidium ichnofabric 1; Tae2 = Taenidium ichnofabric 2; Lo = Loloichnus ichnofabric; Lo/Tae = Loloichnus-Taenidium ichnofabric.
Published: 03 May 2023
characteristics, including the results of this study. Modified from Díez-Canseco et al. (2014 , 2016 ). Abbreviations: Ar/Tae = Arenicolites / Taenidium ichnofabric; Tae1 = Taenidium ichnofabric 1; Tae2 = Taenidium ichnofabric 2; Lo = Loloichnus ichnofabric; Lo/Tae = Loloichnus-Taenidium ichnofabric.
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Taenidium ichnofabric 2 (Tae2). A–C) Tae2 ichnofabric in fine-grained, mixed carbonate–siliciclastic arenite facies of the upper part of point bars. The Tae 2 ichnofabric is characterized by intense to complete bioturbation produced by successive Taenidium barreti suites in multiple (shallow to deep) tiers and root trace fossils. Root trace fossils are elongated in section view (A), circular shaped in plant view (B) and commonly cross-cut Taenidium barreti suites (C). D–F) Tae2 ichnofabric in the reddish sandy-marly mudstone facies of the distal overbank mudflats. Root trace fossils in overbank deposits can be pervasive, forming systems with horizontal and vertical segments (E) cross-cutting Taenidium barreti suites (F). Rectangles in D and E shown in images E and F, respectively. Abbreviations: BI = bioturbation index; Ta = Taenidium barreti; Rt = root trace fossil.
Published: 03 May 2023
Fig. 4 Taenidium ichnofabric 2 (Tae2). A – C ) Tae2 ichnofabric in fine-grained, mixed carbonate–siliciclastic arenite facies of the upper part of point bars. The Tae 2 ichnofabric is characterized by intense to complete bioturbation produced by successive Taenidium barreti suites
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Loloichnus ichnofabric (Lo) and Loloichnus-Taenidium ichnofabric (Lo/Tae). A, B) Lo ichnofabric is constituted by a monospecific suite of multiple-tier Loloichnus isp. preserved in both lateral accretion units of the middle part of point bars (A) and conglomeratic facies of the lower part of point bars (B). C) General view of Lo ichnofabric in overbank facies truncated by channel deposits recording Lo/Tae ichnofabric. D) Close up of the Lo ichnofabric in overbank deposits. E, F) Lo/Tae ichnofabric formed by dwelling and feeding trace fossils occurring in moderately to highly bioturbated overbank facies (E) and above inclined surfaces of the lateral accretion units of the middle part of point bars (F). G) Close up of the top of a lateral accretion unit. The Lo/Tae ichnofabric shows abundant shallow-tier Taenidium barreti. Abbreviations: BI = bioturbation index; Ta = Taenidium barreti; Lo = Loloichnus isp.; Pa = Palaeophycus isp.
Published: 03 May 2023
Fig. 5 Loloichnus ichnofabric (Lo) and Loloichnus-Taenidium ichnofabric (Lo/Tae). A , B ) Lo ichnofabric is constituted by a monospecific suite of multiple-tier Loloichnus isp. preserved in both lateral accretion units of the middle part of point bars (A) and conglomeratic facies
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Examples of Taenidium. A) Specimen in silty, very fine-grained sandstone, Torrejonian (64 to 63 Ma) Ferris Formation, showing back-filled meniscae in part of the burrow, west of Hanna. B) Clear view of meniscae in a specimen in very-fine-grained sandstone, Ferris Formation west of Hanna. C)Taenidium in silty to very fine-grained tidal-flat deposits of the Tiffanian (58.5 Ma) Hanna Formation, western margin of The Breaks, preserved on bedding surface. D) Bedding surface of a tidal-flat deposit with Taenidium at same location as in Part C.
Published: 30 September 2022
Fig. 23. Examples of Taenidium . A) Specimen in silty, very fine-grained sandstone, Torrejonian (64 to 63 Ma) Ferris Formation, showing back-filled meniscae in part of the burrow, west of Hanna. B) Clear view of meniscae in a specimen in very-fine-grained sandstone, Ferris Formation west
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Taenidium isp. ichnofabric 2. A) General view of interval showing ephemeral sheet flood and floodplain deposits. Core 2. B) Close-up of A showing details of the ichnofabric with both horizontal and vertical Taenidium isp. in ephemeral sheet flood and floodplain deposits. Core 2, 1525.97–1525.67 m. C) Close-up of A showing Taenidium isp. (arrowed) at the top of an ephemeral sheet flood interval and right below an erosive surface. Core 2, 1530.11–1530.02 m. D) Close-up of A showing horizontal Taenidium isp. at the top of an ephemeral sheet flood interval and in floodplain deposits. Core 2, 1531.32–1531.23 m.
Published: 03 April 2019
Fig. 12.— Taenidium isp. ichnofabric 2. A ) General view of interval showing ephemeral sheet flood and floodplain deposits. Core 2. B ) Close-up of A showing details of the ichnofabric with both horizontal and vertical Taenidium isp. in ephemeral sheet flood and floodplain deposits. Core 2
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Taenidium isp. preserved as full relief: (1) straight to sinuous meniscate burrows of Taenidium barretti type 1. They are variably oriented with respect to the bedding plane; note the circular cross sections and the common overlapping of the specimens, DEUC-IC 10, scale bar represents 1 cm; (2) meniscate burrows of Taenidium barretti type 2 are oriented parallel to the bedding plane, reaching up to 70 cm long, arrows pointing the length of the specimen illustrated, field photo, scale bar represents 15 cm; (3) cross-section view of the meniscate fill of Taenidium barretti. Meniscate fills display similar (type 1) or contrasting (type 2) grain size with respect to the host rock, DEUC-IC 42, scale bar represents 1 cm; (4) Meniscate Taenidium bowni; note the menisci grouped in elliptical shaped packets, field photo, scale bar represents 1 cm.
Published: 01 March 2016
Figure 6 Taenidium isp. preserved as full relief: ( 1 ) straight to sinuous meniscate burrows of Taenidium barretti type 1. They are variably oriented with respect to the bedding plane; note the circular cross sections and the common overlapping of the specimens, DEUC-IC 10, scale bar
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Contrast-enhanced examples of Bichordites–Taenidium ichnofabric. Figure annotations (A–D): Bi, Bichordites isp.; Ta and sTa, large and small Taenidium isp., respectively; ?Th, ?Thalassinoides isp.; BIC, bilobate inner core; CZ, Cemented zone. A) Moderately diverse ichnofabric dominated by variously sized meniscate trace fossils (Sample ID: 548715). B) Interpretation of image. The red stippled line marks a well-preserved fecal string. Note the well-preserved Bichordites isp. being crosscut by ?Thalassinoides isp. (red color fill). C) Well-preserved Bichordites–Taenidium ichnofabric (Sample ID: 548711) featuring an elongated differential cemented meniscate trace (center of image). D) Interpretation of image.
Published: 29 July 2020
Fig. 7.— Contrast-enhanced examples of Bichordites–Taenidium ichnofabric. Figure annotations (A–D): Bi, Bichordites isp.; Ta and sTa, large and small Taenidium isp., respectively; ?Th, ?Thalassinoides isp.; BIC, bilobate inner core; CZ, Cemented zone. A) Moderately diverse ichnofabric
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Sketch map showing the position of the logged section with the Taenidium burrow at Corrie and the previously described Diplichnites trail at Laggan (Briggs et al. 1979). Shaded areas represent large areas of exposed bedrock.
Published: 04 November 2019
Fig. 1. Sketch map showing the position of the logged section with the Taenidium burrow at Corrie and the previously described Diplichnites trail at Laggan ( Briggs et al. 1979 ). Shaded areas represent large areas of exposed bedrock.
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Taenidium isp. ichnofabric 1 displaying characteristic meniscate structures in damp interdune deposits. Core 3, 1536.32–1536.23 m.
Published: 03 April 2019
Fig. 11.— Taenidium isp. ichnofabric 1 displaying characteristic meniscate structures in damp interdune deposits. Core 3, 1536.32–1536.23 m.
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Photomicrographs in transmitted light with line drawings of Taenidium barretti. Menisci are marked by coloured oxides (larger dashed lines) and by lined grains of quartz (circles); note the unlined wall (shorter dashed lines): (1) Meniscate fill in Taenidium barretti type 1, texturally similar to the host rock, longitudinal view, scale bar represents 1 mm; (2) Meniscate fill in Taenidium barretti type 2, contrasting with the host rock; note the subtle concentric fill when the trace fossil is observed in cross-section view, scale bar represents 1 mm.
Published: 01 March 2016
Figure 7 Photomicrographs in transmitted light with line drawings of Taenidium barretti . Menisci are marked by coloured oxides (larger dashed lines) and by lined grains of quartz (circles); note the unlined wall (shorter dashed lines): ( 1 ) Meniscate fill in Taenidium barretti type 1
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Figure 3.
Published: 01 July 2010
Figure 3. Arthropod burrow photos. A , Plan view photo of Taenidium burrow tops. B , Sketch of all of the ichnofossils present in A ; subhorizontal micromammal(?) burrow ( M ).
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FIGURE 9—Taenidium?, Zoophycos, Phycosiphon, and other collaterally preserved structures (all examples shown are from type 3 concretions). A) Taenidium? expressed in negative relief on concretion exterior (see Fig. 4E). Note differential relief of backfill packets. B, C) Taenidium? (Ta?) preserved on vertical slab surfaces. D) Zoophycos (large arrow) and Phycosiphon (small arrow) as viewed in vertical section through a large concretion. Dark mass at the end of Zoophycos spreite is the marginal tube. E) Spreite, possibly part of Zoophycos, expressed in negative relief on concretion exterior. F) Close-up of Phycosiphon fabric. G) Other unidentified burrows preserved as cylindrical holes and channels on concretion exterior. All bar scales = 1 cm
Published: 01 April 2008
FIGURE 9 — Taenidium ?, Zoophycos , Phycosiphon , and other collaterally preserved structures (all examples shown are from type 3 concretions). A) Taenidium ? expressed in negative relief on concretion exterior (see Fig. 4E ). Note differential relief of backfill packets. B, C) Taenidium
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Milankovitch triplets of paleosols in the field (A–C) and a Taenidium burrow (D) from a shallow calcic paleosol in Montana taken as indication of desert shrubland vegetation (following O’Geen and Busacca 2001). Obliquity (40 kyr) triplets of paleosols at Foree (B; Ted Fremd and Andrea Mindszenty for scale) and in a 62-m section of 76 paleosols and 23 triplets between dated tuffs at Longview Ranch airport (A), Late Oligocene, John Day Formation of Oregon (Retallack 2004a; Retallack et al. 2004a). The Taenidium burrow (D) and two shallow calcic paleosols and a deep calcic paleosol (C) are in the late Eocene, Renova Formation, Little Pipestone Springs, Montana (Tabrum et al. 1996; Nichols et al. 2001). Scale at base of D is graduated in millimeters.
Published: 01 May 2007
Figure 7. Milankovitch triplets of paleosols in the field ( A – C ) and a Taenidium burrow ( D ) from a shallow calcic paleosol in Montana taken as indication of desert shrubland vegetation (following O’Geen and Busacca 2001 ). Obliquity (40 kyr) triplets of paleosols at Foree ( B ; Ted Fremd
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FIGURE 11—Taenidium barretti from top of paleosol 3 (GHUNLPam 12486). Three subhorizontal specimens are shown (arrowed) along with a transverse section of probable empty bee cells (b)
Published: 01 February 2002
FIGURE 11 — Taenidium barretti from top of paleosol 3 (GHUNLPam 12486). Three subhorizontal specimens are shown (arrowed) along with a transverse section of probable empty bee cells (b)
Journal Article
Published: 15 December 2023
Scottish Journal of Geology (2024) 60 (1): sjg2021-019.
... of Taenidium barretti (formerly Beaconites barretti ), and irregular large-scale bioturbation or possibly rootlet casts. The trace fossils and sedimentary structures (including trough cross-bedding and flaser bedding) indicate a fluvial sandbar or plain environment, possibly of estuarine origin, locally...
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Journal Article
Published: 01 March 2016
Journal of Paleontology (2016) 90 (2): 250–268.
...Figure 6 Taenidium isp. preserved as full relief: ( 1 ) straight to sinuous meniscate burrows of Taenidium barretti type 1. They are variably oriented with respect to the bedding plane; note the circular cross sections and the common overlapping of the specimens, DEUC-IC 10, scale bar...
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