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Arthropods invade the land: trace fossils and palaeoenvironments of the Tumblagooda Sandstone (?late Silurian) of Kalbarri, Western Australia

  • N. H. Trewin (a1) and K. J. McNamara (a2)

The trace fossils of the Tumblagooda Sandstone (?late Silurian) of Kalbarri, Western Australia are spectacular in their variety and preservation. They provide a unique insight into the activities of the early invaders of terrestrial environments, and reveal the presence of a diverse fauna dominated by arthropods. Within the Formation trace fossil assemblages can be related to fluvial, aeolian and marine sand-dominated environments. Two distinct and diverse ichnofaunas are recognised.

The Heimdallia–Diplichnites Ichnofauna occurs in sandstones deposited in broad low sinuosity braided fluvial channels, between which were mixed aeolian and waterlain sandsheets, small aeolian dunes and flooded interdune and deflation hollows. Heimdallia is the major bioturbator, favouring shallow pools. Other burrows include Tumblagoodichnus (gen. nov.), Diplocraterion, Skolithos, Beaconites and Didymaulyponomos. Arthropod trackways (Diplichnites) occur on surfaces of waterlain sands and on foreset bedding of aeolian dunes, and represent some of the earliest reported terrestrial trackways. Other trackways include Paleohelcura and Protichnites, and the digging traces Selenichnites and Rusophycus are also present. At least ten types of arthropods are required to produce the observed traces. Myriapods, eurypterids, euthycarcinoids, xiphosurids and scorpionids are considered responsible for the trackway assemblage.

The Skolithos–Diplocraterion Ichnofauna occurs at the top of the exposed section in sandstones that overlie a thick fluvial sequence containing few traces. The strata are considered to represent marine influence at a fluvial/marine transition. They show variable trough cross-bedding, complex planar cross-bedding with down-climbing sets, ripple lamination, and fining-up sequences with bioturbated tops. Traces are dominated by crowded Skolithos up to 1 m long, together with two forms of Diplocraterion. Daedalus and Lunatubichnus (gen. nov.) burrows occur in a few beds and Aulichnites trails cover some foreset surfaces of cross-bedding.

The trace fossils and the sedimentology of the Tumblagooda Sandstone bear a remarkable similarity to those of the lower part of the Taylor Group of Antarctica, which is probably Devonian in age. It is suggested that the two represent a similar age, stratigraphy, and range of environments on the margins of Gondwana. Large unvegetated fluvial outwash plains with variable aeolian influence were essentially coastal in character and fluvial/marine transitions occur in sand-rich environments. The animals responsible for the traces inhabited coastal areas but many could survive outwith marine influence, and arthropods responsible for some types of Diplichnites trackways walked out of water.

The rich diversity of trackways attributable to arthropods illustrate that the invasion of terrestrial environments by arthropods, particularly large forms, was well-established by the beginning of the Devonian. The basis of the food chain was algal and bacterial films which bound the surface sediment in freshwater pools.

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M. A. Bradshaw 1981. Palaeoenvironmental interpretations and systematics of Devonian trace fossils from the Taylor Group (lower Beacon Supergroup). Antarctica. N Z J GEOL GEOPHYS 24, 615–52.

M. A. Bradshaw & L. McCartan 1991. Palaeoecology and systematics of Early Devonian bivalves from the Horlick Formation. Ohio Range, Antarctica. ALCHERINGA 15, 142.

A. D'Alessandro , A. A. Ekdale , & M. D. Pickard 1987. Trace fossils in the fluvial deposits of the Duchesne River Formation (Eocene), Uinta Basin. Utah. PALAEOGEOG PALAEOCLIMATOL PALAEOECOL 61, 285301.

J. W. Dawson 1862. Notice on the discovery of additional remains of land animals in the coal–measures of the South–Joggins. Nova Scotia. Q J GEOL SOC LONDON 18, 57.

M. L. Drosser 1991. Ichnofabric of Palaeozoic Skolithos Ichnofacies and the nature and distribution of Skolithos piperock. PALAIOS 6, 316–25.

D. Edwards & P. A. Selden 1993. The development of early terrestrial ecosystems. BOT J SCOTLAND 46, 337–66.

C. L. Fenton & M. A. Fenton 1937. Burrows and trails from Pennsylvanian rocks of Texas. AM MIDLAND NAT 18, 1079–84.

R. J. Helby & C. T. McElroy 1969. Microfloras from the Devonian and Triassic of the Beacon Group, Antarctica. N Z J GEOL GEOPHYS 12, 376–82.

R. E. Hunter 1977. Basic types of stratification in small eolian dunes. SEDIMENTOL 24, 361–87.

A. J. Jeram , P. A. Selden & D. Edwards 1990. Land animals in the Silurian: arachnids and myriapods from Shropshire, England. SCIENCE 250, 658–61.

G. Kocurek & J. Nielson 1986. Conditions favorable for the formation of warm climate sand seas. SEDIMENTOL 33, 795816.

R. A. Kyle 1977. Devonian palynomorphs from the basal Beacon Supergroup of South Victoria Land, Antarctica (note). N Z J GEOL GEOPHYS 20, 1147–50.

R. P. Langford & M. A. Chan 1989. Modern and ancient fluvialaeolian interactions: Part II, ancient systems. SEDIMENTOL 36, 1037–51.

P. J. McKeever 1991. Trackway preservation in eolian sandstones from the Permian of Scotland. GEOLOGY 19, 726–9.

H. A. Nicholson 1873. Contributions to the study of the errant annelides of the older Palaeozoic rocks. PROC R SOC LONDON 21, 288290. (See Benton & Trewin 1978 for full text and discussion of this Nicholson abstract.)

R. Owen 1852. Description of the impressions and footprints of the Protichnites from the Potsdam Sandstone of Canada. Q J GEOL SOC LONDON 8, 214–25.

R. W. Plume 1978. A revision of the existing stratigraphy of the New Mountain Sandstone (Beacon Supergroup), South Victoria Land, Antarctica. N Z J GEOL GEOPHYS 21, 167–73.

J. E. Pollard & E. F. Walker 1984. Reassessment of sediments and trace fossils from Old Red Sandstone (Lower Devonian) of Dunure, Scotland, described by John Smith (1909). GEOBIOS 17, 567–76.

M. Romano , & M. A. Whyte 1987. A limulid trace fossil from the Scarborough Formation (Jurassic) of Yorkshire, its occurrence, taxonomy and interpretation. PROC YORKSHIRE GEOL SOC 46, 8595.

M. Romano , & M. A. Whyte 1990. Selenichnites, a new name for the ichnogenus Selenichnus Romano & Whyte, 1987. PROC YORKSHIRE GEOL SOC 48, 221.

P. W. Schmidt & B. J. J. Embleton 1990. The palaeomagnetism of the Tumblagooda Sandstone, Western Australia: Gondwana palaeozoic apparent polar wandering. PHYS EARTH PLANET INTER 64, 303–13.

P. W. Schmidt & P. J. Hamilton 1990. Palaeomagnetism and the age of the Tumblagooda Sandstone, Western Australia. AUST J EARTH SCI 37, 381–5.

W. A. Shear 1991. The early development of terrestrial ecosystems. NATURE 351, 283–9.

W. A. Shear , P. M. Bonamo , J. D. Grierson , W. D. I. Rolfe , E. L. Smith & R. A. Norton 1984. Early land animals in North America: evidence from Devonian age arthropods from Gilboa, New York. SCIENCE 224, 492–4.

M. R. Talbot 1985. Major bounding surfaces in aeolian sandstones–a climatic model. SEDIMENTOL 32, 257–65.

N. H. Trewin 1976. Isopodichnus in a trace fossil assemblage from the Old Red Sandstone. LETHAIA 9, 2937.

N. H. Trewin 1993a. Mixed aeolian sandsheet and fluvial deposits in the Tumblagooda Sandstone, Western Australia. In C. P. North & D. J. Prosser (eds), Characterisation of fluvial and aeolian reservoirs, 219–30. GEOL SOC LONDON SP PUBL 73.

N. H. Trewin 1993b. Controls on fluvial deposition in mixed fluvial and aeolian facies within the Tumblagooda Sandstone (Late Silurian) of Western Australia. SEDIMENT GEOL 85, 387400.

O. S. Vialov 1962. Problematica of the Beacon Sandstone at Beacon Height West, Antarctica. N Z J GEOL GEOPHYS 5, 718–32.

P. N. Webb 1963. Geological investigations in southern Victoria Land, Antarctica. Part 4. Beacon Group of the Wright Valley and Taylor Glacier region. N Z J GEOL GEOPHYS 6, 361–87.

B. D. Webby 1968. Devonian trace fossils from the Beacon Group of Antarctica. N Z J GEOL GEOPHYS 11, 1001–8.

K. J. Woolfe 1990. Trace fossils as paleoenvironmental indicators in the Taylor Group (Devonian) of Antarctica. PALAEOGEOG PALAEOCLIMATOL PALAEOECOL 80, 301–10.

F. G. Young 1972. Early Cambrian and older trace fossils from the Southern Cordillera of Canada. CAN J EARTH SCI 9, 117.

G. C. Young 1989. The Aztec fish fauna (Devonian) of Southern Victoria Land: Evolutionary and biogeographic significance. In J. A. Crame (ed.) Origins and evolutions of the Antarctic biota. 4362. GEOL SOC LONDON SP PUBL 47.

V. T. Young 1986. Early Devonian fish material from the Horlick Formation, Ohio Range, Antarctica. ALCHERINGA 10, 3544.

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Earth and Environmental Science Transactions of The Royal Society of Edinburgh
  • ISSN: 1755-6910
  • EISSN: 1755-6929
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