1-20 OF 30 RESULTS FOR

Sowerbyella rugosa

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Journal: PALAIOS
Published: 01 December 2005
PALAIOS (2005) 20 (6): 596–600.
... paleoecology: trace-fossil evidence of an escape response for the plectambonitoid brachiopod Sowerbyella rugosa from a tempestite in the Upper Ordovician Kope Formation (Edenian) of Northern Kentucky : PALAIOS , v. 19 , p. 332 – 348 . Gould , S.J. , and Lewontin , R.C. , 1979...
Journal Article
Journal: PALAIOS
Published: 01 August 2004
PALAIOS (2004) 19 (4): 332–348.
...BENJAMIN F. DATTILO Abstract A uniquely preserved occurrence of the plectambonitoid brachiopod Sowerbyella rugosa from the Upper Ordovician of Northern Kentucky shows several individuals preserved in direct association with burrow-like structures and oriented with the commissural plane vertical...
FIGURES | View All (16)
Image
FIGURE 14—Shell features (right) and inferred soft part anatomy (left) of Sowerbyella rugosa and related species do not indicate any extraordinary adaptations to burrowing. A pedicle could not have emerged from the sealed foramen, nor did it likely emerge from the opening between the chilidium and pseudodeltidium, because the central lobe of the cardinal process blocks this opening. The presence of interarea canals in some species indicates the emergence of mantle threads from these locations and laterally from the gape, but such canals have not been documented in Sowerbyella rugosa. If they were present, the threads likely would have served as organs of attachment, not locomotion. Comae show that the commissure was surrounded by mantle extensions whose form is unconstrained. Such extensions might have helped in respiration, stabilization, or attachment, but they were also unlikely digging organs
Published: 01 August 2004
FIGURE 14 —Shell features (right) and inferred soft part anatomy (left) of Sowerbyella rugosa and related species do not indicate any extraordinary adaptations to burrowing. A pedicle could not have emerged from the sealed foramen, nor did it likely emerge from the opening between the chilidium
Image
FIGURE 1—Upper Ordovician stratigraphy of the Cincinnati, Ohio region. A) Generalized stratigraphy of uppermost Mohawkian and lower Cincinnatian Series. BR = Bromley Shale; LSS = lower strophic Sowerbyella rugosa interval (see Results section for discussion); MK = Mohawkian Series; PP = Point Pleasant Formation; SH = Shermanian Stage (after Caster et al., 1955). B) Stratigraphy of middle and upper Kope and lower Fairview Formations, showing Kope submembers as designated by Brett and Algeo (2001). See text for discussion of Big Shale 4. USS = upper strophic Sowerbyella rugosa interval; GAB = Grand Avenue Beds; FV = Fairview Formation (after Brett and Algeo, 2001). C) Detailed stratigraphy of the Alexandria submember and the upper Snag Creek (SC) and lower Grandview (GV) submembers. Numbers immediately to left of column are meter-scale cycle designations; numbers to right are designations of cycle-bounding limestone beds (adapted from Brett and Algeo, 2001)
Published: 01 March 2008
FIGURE 1 —Upper Ordovician stratigraphy of the Cincinnati, Ohio region. A) Generalized stratigraphy of uppermost Mohawkian and lower Cincinnatian Series. BR = Bromley Shale; LSS = lower strophic Sowerbyella rugosa interval (see Results section for discussion); MK = Mohawkian Series; PP = Point
Image
FIGURE 3—Polished slab showing vertical cross-section of bed in which Sowerbyella specimens were found. Microfacies are labeled and are listed from bottom to top: siliciclastic underbed (u), graded packstone (p), transition zone of silty limestone to limey siltstone (t), and laminated siltstone cap (s). Vertically oriented Sowerbyella rugosa specimens (not visible here) are concentrated in the siltstone cap. This bed is interpreted as a storm deposit. The storm suspended and then re-deposited the Sowerbyella specimens along with other living organisms, skeletal remains, shale rip-up clasts, and silt-to-clay sized silicate particles, in order of settling velocity. The small number of individuals (20) found oriented vertically in the siltstone cap must have arrived from underneath under their own power
Published: 01 August 2004
cap (s). Vertically oriented Sowerbyella rugosa specimens (not visible here) are concentrated in the siltstone cap. This bed is interpreted as a storm deposit. The storm suspended and then re-deposited the Sowerbyella specimens along with other living organisms, skeletal remains, shale rip-up
Image
Figure 10
Published: 01 September 2016
Figure 10 ( 1–4 ) Sowerbyella socialis Cooper, 1956 ; ( 1 ) ventral exterior (USNM 117525a); ( 2 ) dorsal exterior (USNM 117525a); ( 3 ) ventral interior (USNM 117527a); ( 4 ) dorsal interior (USNM 117527b). ( 5–8 ) Sowerbyella rugosa Meek
Journal Article
Journal: PALAIOS
Published: 01 December 2005
PALAIOS (2005) 20 (6): 600–604.
... fossils associated with eighteen vertically oriented and two convex-up specimens of Sowerbyella rugosa found on a single bed, he concentrated on the description and interpretation of the trace-fossil evidence. It was clear that these brachiopods had rotated through the sediments from a convex-up...
Journal Article
Journal: PALAIOS
Published: 01 September 2009
PALAIOS (2009) 24 (9): 578–590.
... The idea that concavo-convex brachiopods were immobile was recently challenged by the discovery of escape traces associated with several specimens of the Ordovician plectambonitoid Sowerbyella rugosa ( Dattilo, 2004 ). The implication of this discovery is that Sowerbyella did not need to passively keep...
FIGURES | View All (13)
Image
Photographs featuring two specimens of the strophomenide Sowerbyella rugosa preserved in a tempestite (A, etched specimen; B, acetate peel). These are from Dattilo (2004), who asserted that these animals lived epifaunally in a concave-down position and rotated themselves upward (“burrowed” in Datillo's words) in a counterclockwise direction in attempting to escape from their buried position. One problem with this interpretation is that, having been surrounded by sediment, these animals could not have burrowed hydraulically, and they had no other means of burrowing. A second problem is that the concave valve of each specimen is filled with sediment that is distinct from the tempestite sediment (small arrows). This must be inherited sediment (present before burial). It could not have been held in place if the shells had been in a concave-down posture and rotated to a high angle. The shells must have accumulated this sediment when in a concave-up position, as I have concluded they did in life. The current that produced the tempestite must have tilted the shells upward in a clockwise direction (curved arrows), with the tempestite sediment holding in place the sediment already present on their concave valves. The triangle points to a band of dark sediment marking a position of the right-hand shell on its way to its final station. Thus, these specimens provide direct evidence of the mode of life I advocate for strophs. Lithologies and structures, from Dattilo (2004): d, disrupted zone, f, zone of folded sediments, fl, faintly laminated zone, ft, folded transitional sediments, ip, isolated packstone lamina, l, concavity-filling lenses on brachial valves, p, packstone, ru, shale rip-up clast, s, laminated siltstone, t1, transitional silty packstone, and t2, transitional siltstone with bioclasts.
Published: 01 August 2020
Figure 7. Photographs featuring two specimens of the strophomenide Sowerbyella rugosa preserved in a tempestite (A, etched specimen; B, acetate peel). These are from Dattilo ( 2004 ), who asserted that these animals lived epifaunally in a concave-down position and rotated themselves upward
Journal Article
Published: 01 September 2013
Journal of Paleontology (2013) 87 (5): 818–825.
... of an escape response for the plectambonitoid brachiopod Sowerbyella rugosa from a tempestite in the Upper Ordovician Kope Formation (Edenian) of northern Kentucky . PALAIOS , 19 : 332 – 348 . Dattilo B...
FIGURES | View All (6)
Journal Article
Journal: Paleobiology
Published: 01 January 2003
Paleobiology (2003) 29 (4): 468–479.
... ). Of the over 200 species that occur within the Kope, the trilobite Cryptolithus tessellatus Green 1832 and the brachiopod Sowerbyella rugosa (Meek 1873) are of particular interest because they are abundant, characteristic of the Kope, and absent in immediately overlying strata. Cryptolithus is not known...
FIGURES | View All (5)
Journal Article
Journal: PALAIOS
Published: 01 August 2004
PALAIOS (2004) 19 (4): 316–331.
... distribution of biofacies ( Appendix 3 ). Within M5–C2 strata (Chatfieldian–Maysvillian Stages) of southwestern Virginia are six faunal associations ( Springer and Bambach, 1985 ): (1) Onniella sp. 1 (a dalmanellid)/ Rafinesquina alternata ; (2) large ramose bryozoan; (3) Sowerbyella rugosa / Zygospira...
FIGURES | View All (10)
Journal Article
Published: 01 September 2005
Journal of Paleontology (2005) 79 (5): 1037–1039.
...– Triassic boundary in South China . Science , 289 : 432 – 436 . Levy , G. M. , and S. M. Holland . 2002 . Using ecological ordination to test for ecophenotypic and evolutionary change in the brachiopod Sowerbyella rugosa from the Upper Ordovician Kope Formation of northern Kentucky...
Journal Article
Published: 01 September 2016
Journal of Paleontology (2016) 90 (5): 888–909.
...Figure 10 ( 1–4 ) Sowerbyella socialis Cooper, 1956 ; ( 1 ) ventral exterior (USNM 117525a); ( 2 ) dorsal exterior (USNM 117525a); ( 3 ) ventral interior (USNM 117527a); ( 4 ) dorsal interior (USNM 117527b). ( 5–8 ) Sowerbyella rugosa Meek...
FIGURES | View All (10)
Journal Article
Journal: PALAIOS
Published: 01 March 2008
PALAIOS (2008) 23 (3): 174–184.
...FIGURE 1 —Upper Ordovician stratigraphy of the Cincinnati, Ohio region. A) Generalized stratigraphy of uppermost Mohawkian and lower Cincinnatian Series. BR = Bromley Shale; LSS = lower strophic Sowerbyella rugosa interval (see Results section for discussion); MK = Mohawkian Series; PP = Point...
FIGURES | View All (7)
Journal Article
Published: 04 March 2008
Canadian Journal of Earth Sciences (2008) 45 (2): 213–229.
...-fossil evidence of an escape response for the plectambonitoid brachiopod Sowerbyella rugosa from a tempestite in the Upper Ordovician Kope formation (Edenian) of northern Kentucky. Palaios 19 332 348 Donovan S.K. Jagt J.W.M. 2002 Oichnus Bromley Borings in the Irregular Echinoid...
FIGURES
Journal Article
Journal: Paleobiology
Published: 18 February 2013
Paleobiology (2013) 39 (2): 193–213.
... with bootstrapping as in Figures 2 and 3 , nor with sample standardization). Some incumbents, such as Rafinesquina alternata and Hebertella occidentalis , are more commonly sampled than others, such as Sowerbyella rugosa and Eridorthis nicklesi, which are not sampled after C1 ( Fig. 3 ). Invaders...
FIGURES | View All (12)
Journal Article
Published: 01 December 1990
Journal of the Geological Society (1990) 147 (6): 935–948.
... Verslagen Nederlands Instituut voor Onderzoek der Zee 1982–3 1982 1 29 Cadee G. C. The use of size-frequency distribution in palaeoecology Lethaia 1988 21 289 290 Carruthers R. G. Septal plan in Rugosa Annals and Magazine of Natural History, London 1906 18 356 363...
Journal Article
Journal: PALAIOS
Published: 01 December 2000
PALAIOS (2000) 15 (6): 499–510.
... assemblage; other rare brachiopods include Rafinesquina alternata , Sowerbyella rugosa , and Zygospira modesta . The brachiopod valves are largely disarticulated and undeformed, and retain original microstructural features; borings can be recognized as biotic using morphological criteria. Boring intensity...
FIGURES | View All (7)
Journal Article
Journal: Paleobiology
Published: 01 August 2020
Paleobiology (2020) 46 (3): 405–433.
...Figure 7. Photographs featuring two specimens of the strophomenide Sowerbyella rugosa preserved in a tempestite (A, etched specimen; B, acetate peel). These are from Dattilo ( 2004 ), who asserted that these animals lived epifaunally in a concave-down position and rotated themselves upward...
FIGURES | View All (15)