Microbes within sediments often create films or thick mats that interact with mobile sediment, producing microbially induced sedimentary structures (MISS). Preserved microbes in these sedimentary features are difficult to find, especially in oxygen-rich environments. The study of recent discoveries in the Upper Triassic Norian Lockatong Formation, a dominantly lacustrine facies of the Newark Supergroup strata, has revealed rarely reported structures that are assignable as MISS, namely, sand-cored spheres encapsulated in thin mudstone which range in diameter from the sub-millimetre to millimetre scale. These spheres are embedded in a thin layer of very fine silt and mudstone developed in an interpreted marginal-lacustrine shoreline setting. The cores of the spheres consist of randomly oriented, graded, fine-grained sandstone to siltstone; this eliminates previously proposed physical and biological origins for spheres, leaving a microbial origin. The microbial bound sand balls are localised and generated from a graded bed bound by microbial mats both above and below. The bounded bed was eroded and shaped into spheres during transport. The mats added cohesion by providing extrapolymeric substances which prevented the breakdown of the spheres into individual grains. The mats were rolled into spheres during transportation, thus preserving the microbial bound core. These sand balls add to the catalog of microbial diversity that can be used to increase our understanding of biological systems in lacustrine settings.
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Acton, E. (1916). On the structure and origin of “Cladophora balls”. New Phytologist, 15, 1–10.
Amos, C. L., Brylinsky, M., Sutherland, T. F., O’Brian, D., Lee, S., & Cramp, A. (1998). The stability of a mudflat in Humber estuary South Yorkshire UK. In K. S. Black, D. M. Paterson, & A. Cramp (Eds.), Sedimentary processes in the intertidal zone (pp. 25–43). London: Geologic Society of London.
Beraldi-Campesi, H., & Garcia-Pichel, F. (2011). The biogenicity of modern terrestrial roll-up structures and its significance for ancient life. Geobiology, 9, 10–23.
Beraldi-Campesi, H., Hartnett, H. E., Anbar, A., Gordon, G. W., & Garcia-Pichel, F. (2009). Effect of biological soil crusts on soil elemental concentrations: implications for biogeochemistry and as traceable biosignatures of ancient life on land. Geobiology, 7, 348–359.
Beraldi-Campesi, H., Farmer, J. D., & Garcia-Pichel, F. (2014). Modern terrestrial sedimentary biostructures and their fossil analogs in Mesoproterozoic subaerial deposits. Palaios, 29, 45–54.
Berg, T. M., Edmunds, W. E., Geyer, A. R., et al. compilers (1980). Geologic map of Pennsylvania. Pennsylvania Geological Survey, 4th ser., Map 1. Available at: http://www.dcnr.state.pa.us/topogeo/publications/pgspub/map/map1/index.htm
Boedeker, C., Eggert, A., Immers, A., & Smets, E. (2010). Global decline of and threats to Aegagropila linnaei, with special reference to the lake ball habit. Bioscience, 60, 187–198.
Bottjer, D., & Hagadorn, J. W. (2007). 4(a) Mat growth features. In J. Schieber, B. K. Bose, P. G. Eriksson, S. Banerjee, S. Sarkar, W. Altermann, & O. Catuneanu (Eds.), Atlas in geosciences 2 (pp. 53–71). Amsterdam: Elsevier.
Buatois, L. A., Mángano, G. M., et al. (2012). The trace fossil record of organism-matground interactions in space and time. In H. Chafetz (Ed.), Microbial mats in siliciclastic depositional systems through time (pp. 15–28). Tulsa: Society of Economic Paleontologists and Mineralogists Special Publication 101.
Cornet, B. (1977). The palynostratigraphy and age of the Newark Supergroup. Ph.D. thesis. University Park, PA: Pennsylvania State University.
Cornet, B. (1993). Application and limitations of palynology in age, climate, and paleoenvironmental analysis of Triassic sequences in North America. In S. G. Lucas & M. Morales (Eds.), The nonmarine Triassic (pp. 85–93). Albuquerque: New Mexico Museum Natural History and Science Bulletin 3.
Dongyan, W., Zhenmin, L., Xiaolin, D., & Shaokang, X. (1998). Biomineralization of mirabilite deposits of Barkol Lake, China. Carbonates and Evaporites, 13, 86–89.
Eriksson, P. G., Simpson, E. L., Eriksson, K. A., Bumby, A. J., Steyn, G. L., & Sarkar, S. (2000). Muddy roll-up structures in clastic playa beds of the c. 1.8 Ga Waterberg group, South Africa. Palaios, 15, 177–183.
Fagerstrom, J. A. (1967). Development, flotation and transportation of mud crusts—neglected factors in sedimentology. Journal Sedimentary Petrololgy, 37, 73–79.
Gerdes, G., Klenke, T., & Noffke, N. (2000). Microbial signatures in peritidal siliciclastic sediments, a catalogue. Sedimentology, 47, 279–308.
Gore, P. J. W. (1988). Paleoecology and sedimentology of a late Triassic lake, Culpeper basin, Virginia, U.S.A. Palaeogeography Palaeoclimatology Palaeoecology, 62, 593–608.
Haberyan, K. A. (1985). The role of copepod fecal pellets in the deposition of diatoms in Lake Tanganyika. Liminolgy Oceanography, 30, 1010–1023.
Hagadorn, J. W., & Bottjer, D. J. (1997). Wrinkle structures: microbially mediated sedimentary structures common in subtidal siliciclastic settings at the Proterozoic-Phanerozoic transition. Geology, 25, 1047–1050.
Hagadorn, J. W., & McDowell, C. (2012). Microbial influence on erosion, grain transport and bedform genesis in sandy substrates under unidirectional flow. Sedimentology, 59, 795–808.
Houten, F. B. van (1964). Cyclic lacustrine sedimentation, Upper Triassic Lockatong formation, central New Jersey and adjacent Pennsylvania. In O. F. Mermaid (Ed.), Symposium on cyclic sedimentation (pp. 497–531). Lawrence: Kansas Geological Survey Bulletin 169.
Hunt, A. P., & Lucas, S. G. (2012). Descriptive terminology of coprolites and recent feces. In A. P. Hunt, G. Milàn, S. G. Lucas, & J. A. Spielmann (Eds.), Vertebrate coprolites (pp. 153–160). Albuquerque: New Mexico Museum Natural History and Science Bulletin 57.
Hunt, A. P., Milàn, G., Lucas, S. G., & Spielmann, J. A. (Eds.). (2012). Vertebrate coprolites. Albuquerque: New Mexico Museum Natural History and Science Bulletin 57.
Kurogi, M. E. (1980). Lake ball “marimo” in Lake Akan. Japanese Journal Phycology, 28, 752–760.
Leliaert, F., & Boedeker, C. (2007). Cladophorates. In J. Brodie, C. A. Maggs, & D. M. John (Eds.), Green seaweeds of Britian and Ireland (pp. 131–183). London: British Phycology Society.
Lucas, S. G., Szajna, M. J., Lockley, M. G., Fillmore, D. L., Simpson, E. L., Klein, H., Boyland, J., & Hartline, B. W. (2013). The middle-late Triassic tetrapod footprint ichnogenus Gwyneddichnium. In M. G. Lockley & S. G. Lucas (Eds.), Fossil footprints of western North America (pp. 135–156). Albuquerque: New Mexico Museum Natural History and Science Bulletin 62.
Luther, H. (1951). Verbreitung und Ökologie der höheren Wasserpflanzen im Brackwasser der Ekenäs-Gegend in Südfinnland. II Spezieller Teil. Acta Botanica Fennica, 50, 1–370.
McLaughlin, D. B. (1933). A note on the stratigraphy of the Brunswick formation (Newark) in Pennsylvania. Michigan Academy of Science, Arts, and Letters, 18, 59–74.
McLaughlin, D. B. (1943). The revere well and Triassic stratigraphy. Pennsylvania Academy Science Proceedings, 17, 104–110.
McLaughlin, D. B. (1959). Mesozoic rocks. In B. Willard et al. (Eds.), Geology and mineral resources of bucks county, Pennsylvania (pp. 55–114). Harrisburg: Pennsylvania Geological Survey Bulletin C-9.
Meadows, P. S., Tait, J., & Hussain, S. A. (1990). Effects of estuarine infauna on sediment stability and particle sediment. Hydrobiology, 190, 263–290.
Noffke, N. (2008). Turbulent lifestyle: Microbial mats on Earth’s sandy beaches—Today and 3 billion years ago. GSA Today, 18(10), 4–9.
Noffke, N. (2009). The criteria for the biogeneicity of microbially induced sedimentary structures (MISS) in Archean and younger, sandy deposits. Earth Science Reviews, 96, 173–180.
Noffke, N. (2010). Geobiology: microbial mats in sandy deposits from the archean Era to today. Berlin: Springer.
Noffke, N. (2015). Ancient sedimentary structures in the < 3.7 Ga Gillespie lake member, mars, that compare in macroscopic morphology, spatial associations, and temporal succession with terrestrial microbialites. Astrobiology, 15(2), 169–192.
Noffke, N., & Chafetz, H. (Eds.). (2012). Microbial mats in siliciclastic depositional systems through time. Tulsa: Society of Economic Paleontologists and Mineralogists Special Publication 101.
Noffke, N., Gerdes, G., Klenke, T., & Krumbein, W. E. (1996). Microbial induced sedimentary structures – examples from modern siliciclastic tidal flat sediments. Zentralblatt für Geologie und Paläontologie, 1995, 307–316.
Noffke, N., Gerdes, G., Klenke, T., & Krumbein, W. E. (2001). Microbially induced sedimentary structures indicating climatological, hydrologically, and depositional conditions within recent and Pleistocene coastal facies zones (southern Tunisia). Facies, 44, 23–30.
Noffke, N., Knoll, A. H., & Grotzinger, J. P. (2002). Sedimentary controls on the formation and preservation of microbial mats in siliciclastic deposits: a case study from the upper neoproterozoic nama group, Namibia. Palaios, 17, 533–544.
Noffke, N., Eriksson, K. A., Hazen, R. M., & Simpson, E. L. (2006). A new window into early archean life: microbial mats in Earth’s oldest siliciclastic tidal deposits (3.2 GaMoodies group, South Africa). Geology, 34, 253–256.
Noffke, N., Beukes, N., Bower, D., Hazen, R. M., & Swift, D. J. P. (2008). An actualisitic perspective into Archean worlds – (cyano-)bacterially induced sedimentary structures in the siliciclastic Nhlazatse Section, 2.9 Pongola Supergroup, South Africa. Geobiology, 6, 5–20.
Ohlson, B. (1961). Observations on Recent lake balls and ancient Corycium inclusions in Finland. Bulletin de la Commission gèologique de la Finlande, 196, 377–390.
Olsen, P. E. (1986). A 40-Million-year lake record of early Mesozoic orbital climatic forcing. Science, 234, 842–848.
Olsen, P. E. (2005). Implications of radiometric ages from stromatolites, coprolites, and caliches from the Newark and Hartford Triassic-Jurassic rift basins. Geological Society of America Abstracts with Programs, 37(1), 7.
Olsen, P. E. (2010). Fossil great lakes of the Newark Supergroup—30 years later. In A. I. Benimoff, (Ed.), Field trip guidebook, New York State Geological Association, 83nd Annual Meeting (pp. 101–162).
Olsen, P. E., & Kent, D. V. (1996). Milankovitch climate forcing in the tropics of Pangaea during the Late Triassic. Palaeogeography Palaeoclimatology Palaeoecology, 122, 1–26.
Olsen, P. E., Kent, D. V., Cornet, B., Witte, W. K., & Schlische, R. W. (1996). High-resolution stratigraphy of the Newark rift basin (early Mesozoic, eastern North America). Geological Society America Bulletin, 108, 40–77.
Olsen, P. E., Kent, D. V., & Whiteside, J. H. (2010). Implications of the Newark Supergroup-based astrochronology and geomagnetic polarity scale (Newark-APTS) for the tempo and mode of the early diversification of Dinosauria. Earth Environmental Science Transactions Royal Society Edinburgh, 101, 201–229.
Paterson, D. M. (1997). Biological mediation of sediment erodibility: ecology and physical dynamics. In N. Burt, R. Parker, & J. Watts (Eds.), Cohesive sediments (pp. 215–229). New York: Wiley.
Schieber, J. (2004). Microbial mats in siliciclastic rock record: a summary of the diagnostic features. In P. G. Eriksson, W. Altermann, D. R. Nelson, W. U. Mueller, & O. Catuneanu (Eds.), The Precambrian earth: tempos and events (Developments Precambrian geology 12, pp. 663–673). Amsterdam: Elsevier.
Schieber, J., & Southard, J. B. (2009). Bedload transport of mud floccule ripples – direct observation of ripple migration processes and their implications. Geology, 37, 483–486.
Schieber, J., Southard, J. B., & Thaisen, K. (2007). Accretion of mudstone beds from migrating floccule ripples. Science, 318, 1760–1763.
Schlische, R. W., & Olsen, P. E. (1990). Quantitative filling model for continental extensional basins with applications to early Mesozoic rifts of eastern North America. Journal of Geology, 98, 135–155.
Simpson, E. L., Heness, E. A., Bumby, A., Eriksson, P. G., Eriksson, K. A., Hilbert-Wolf, H. L., Linnevelt, S., Fitzgerald-Malenda, H., Modungwa, T., & Okafor, O. J. (2013). Evidence for 2.0 Ga continental microbial mats in a paleodesert setting. Precambrian Research, 237, 36–50.
Smoot, J. P. (1991). Sedimentary facies and depositional environment of early Mesozoic Newark Supergroup basins, eastern North America. Palaeogeography Palaeoclimatology Palaeoecology, 84, 369–423.
Smoot, J. P., & Olsen, P. E. (1988). Massive mudstones in basin analysis and paleoclimatic interpretation of the Newark Supergroup. In W. Manspeizer (Ed.), Triassic-Jurassic rifting and the opening of the Atlantic Ocean (pp. 249–274). Amsterdam: Elsevier.
Smoot, J. P., & Olsen, P. E. (1994). Climatic cycles as sedimentary controls of rift basin lacustrine deposits in the early Mesozoic Newark basin based on continuous core. In A. Lomando & M. Harris (Eds.), Lacustrine depositional systems (SEPM core workshop notes 19, pp. 201–237). Tulsa: Society of Economic Paleontologists Mineralogists: Tulsa.
Tolhursf, T. J., Gust, G., & Paterson, D. M. (2002). The influence of an extracellular polymeric substance (EPS) on cohesive sediment stability. Proceedings Marine Science, 5, 409–425.
Troy, R. E. (2003). U-Pb age of stromatolite calcite from the Triassic Passaic Formation of the Newark Basin. Geological Society America Abstracts with Programs, 35(6), 508.
Walker, J. D., Geissman, J. W., Bowring, S. A., Babcock, L. E., compilers. (2012). Geologic time scale, v. 4.0. Boulder, CO: Geological Society of America. doi: 10.1130/2012.CTA004R3C.
Whiteside, J. H. (2004). Arboreal stromatolites: a 210-million year record. In M. D. Lowman, (Ed.), Forest Canopies (Physiological Ecology Series), 2nd ed (pp. 147–149). New York, Amsterdam: Academic Press.
Willard, B., Freedman, J., McLaughlin, D.B., Ryan, J.D., Wherry, E.T., Peltier, L.C., Gault, H. R. (1959). Geology and mineral resources of Bucks County Pennsylvania. Pennsylvania Topographic Geological Survey Bulletin C 9.
Wings, O. (2007). Review of gastrolith function with implications for fossil vertebrates and a revised classification. Acta Palaeontologica Polonica, 52, 1–16.
Wings, O. (2012). Gasroliths in coprolites—a call to search. In A. P. Hunt, J. Milàn, S. G. Lucas, & J. A. Spielmann (Eds.), Vertebrate coprolites (pp. 73–77). Albuquerque: New Mexico Museum Natural History and Science Bulletin 57.
Wings, O., & Sander, P. M. (2007). No gastric mill in sauropod dinosaurs: new evidence from analysis of gastrolith mass and function in ostriches. Proceedings Royal Society B: Biological Sciences, 274, 635–640.
Yallop, M. L., de Winder, B., Paterson, D. M., & Stal, L. J. (1994). Comparative structure, primary production and biogenic stabilization of cohesive and non-cohesive marine sediments inhabited by microphytobenthos. Estuarine, Coastal and Shelf Science, 39, 565–582.
We wish to thank the journal reviewers, Paul E. Olsen and Nora Noffke, and the owners of the property at the collection site who were kind enough to give us permission to explore their home sites. We extend our thanks to Helen Fitzgerald-Malenda who constructively commented on the earlier version of the paper.
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Simpson, E.L., Fillmore, D.L., Szajna, M.J. et al. Enigmatic spheres from the Upper Triassic Lockatong Formation, Newark Basin of eastern Pennsylvania: evidence for microbial activity in marginal-lacustrine strandline deposits. Palaeobio Palaeoenv 95, 521–529 (2015). https://doi.org/10.1007/s12549-015-0207-y
- Microbially induced sedimentary structures
- Lockatong formation
- Microbial mats