Non-marine arthropod traces from the subaerial Ordovician Borrowdale Volcanic Group, English Lake District

Johnson, Eric W.; Briggs, Derek E. G.; Suthren, R. J.; Wright, Joanna L.; Tunnicliff, S. P.

doi:10.1017/s0016756800011146

Cited by 119 publications

(93 citation statements)

References 17 publications

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“…The liverwort component of these communities dates back to mid-Ordovician (Llanvirn), or perhaps even mid-Cambrian, judging from their spore record (Gray 1993;Strother et al 1996Strother et al , 1998. The most ancient records of the myriapod component are trackways from late Ordovician (Llandeilo±Caradoc) Borrowdale Volcanics of the Lake District, England (Johnson et al 1994). Millipede burrows are found through much of the Juniata Formation of Pennsylvania (Text-®g.…”

Section: Comparisons With Extinct Animalsmentioning

confidence: 99%

Scoyenia burrows from Ordovician palaeosols of the Juniata Formation in Pennsylvania

Retallack

2001

Palaeontology

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ABSTRACT. Scoyenia beerboweri is a new ichnospecies of burrow from the late Ordovician (Ashgill) Juniata Formation in central Pennsylvania, USA. The burrows are abundant in red calcareous palaeosols, and were created by animals living at the time of soil formation, because they are ®lled with red sediment like that of the palaeosol matrix, and both cut across, and are cut by, nodules of pedogenic carbonate. The isotopically light carbon and oxygen of carbonate in the palaeosols indicate a terrestrial ecosystem of well-drained¯oodplains in a tropical seasonally-dry semi-arid palaeoclimate. Back®ll layering within the burrows is evidence of a bilaterally symmetrical animal. Size distribution of the burrows reveals discontinuous growth, as found in arthropods. Ferruginized faecal pellets in the burrows indicate that they ingested sediment. For these reasons the burrows of Scoyenia beerboweri are most likely to be the work of millipedes. The nature of vegetation supporting them is unknown, although a single problematic plant-like fossil cast was found, and liverwort spores are widespread in rocks of this age. Vegetative biomass was limited judging from the degree of chemical weathering, extent of burial gleization and isotopic composition of carbon in the palaeosols. These distinctive respiration-dominated liverwort-millipede polsterlands lived at a time of global greenhouse climate, following Precambrian±Cambrian lichen-algal microbial earths and supplanted by Silurian brakelands of early vascular land plants.

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Section: Comparisons With Extinct Animalsmentioning

confidence: 99%

Scoyenia burrows from Ordovician palaeosols of the Juniata Formation in Pennsylvania

Retallack

2001

Palaeontology

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“…Similar D. gouldi Form B trackways have been described from a range of sedimentary settings including coastal environments (Bradshaw 1981, 2010, Draganits et al 2001, dry and damp aeolian surfaces (Trewin & McNamara 1994, Retallack 2009), subaqueous fluvial and damp subaerial surfaces (Woolfe 1993, Smith et al 2003, Neef 2004a) and an emergent sheet-flooded fluvial environment (Neef 2004b). Diplichnites gouldi has been ascribed to myriapods (Briggs et al 1979, Bradshaw 1981, Johnson et al 1994, Trewin & McNamara 1994, Draganits et al 2001, Smith et al 2003, Neef 2004a, trilobites (Bradshaw 2010), euthycarcinoids (Trewin & McNamara 1994, Retallack 2009) and xiphosurans (Trewin & McNamara 1994). It is likely that a similar non-marine aqueous to terrestrial trackway-producing arthropod existed in the Amadeus Basin as the Mereenie Sandstone was deposited.…”

Section: Ichnologymentioning

confidence: 76%

Siluro-Devonian trace fossils from the Mereenie Sandstone, Kings Canyon, Watarrka National Park, Amadeus Basin, Northern Territory, Australia

Gouramanis¹,

McLoughlin²

2016

Alcheringa: An Australasian Journal of Palaeontology

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“…Johnson et al, 1994;Keighley & Pickerill, 1996;Balistieri et al, 2002Balistieri et al, , 2003Lermen, 2006) or of myriapod-like aquatic animals (e.g. Buatois et al, 1998) in softgrounds.…”

Section: Ichnogenus Diplopodichnus Braddy 1947mentioning

confidence: 99%

Trace fossils from the Permian Teresina Formation at Cerro Caveiras (S Brazil)

Lima¹

2012

Rev. bras. paleontol.

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-The ichnofauna of the Teresina Formation from the Cerro Caveiras (Dom Pedrito, Rio Grande do Sul State, South Brazil) is revised in this paper. Bergaueria isp., Cochlichnus cf. anguineus, Cruziana problematica, cf. Diplocraterion isp., Diplopodichnus biformis, Helminthopsis isp., Lockeia siliquaria, Multina arcuata isp. nov., Oldhamia isp., Palaeophycus striatus, P. tubularis, Phymatoderma burkei, Planolites beverleyensis, P. montanus, Teichichnus isp., and Thalassinoides isp. were recorded. Isopodichnus problematicus, Helminthopsis tenuis and Unarites isp., previously described in these deposits are now described as Cruziana problematica, indeterminate molluscan trail, and Multina arcuata isp. nov., respectively. The ichnofauna is composed chiefly of horizontal, simple shallow burrows, with a predominance of feeding structures. Resting, dwelling and crawling structures also occur, as well as indeterminate tiny grazing trails, but are less frequent. Ichnodiversity and intensity of bioturbation are usually low, and P. montanus is the commonest ichnotaxon. The main characteristics of the ichnofauna suggest a marine benthic fauna stressed by salinity fluctuations and resulting in an impoverished Cruziana ichnofacies. The absence of vertical burrows and the common occurrences of monospecific assemblages of Planolites indicate extreme stress events, probably due to the establishment of freshwater conditions. Further studies focused on the ichnological signatures of these deposits will provide more detailed information to improve the current paleoecologic and paleoenvironmental interpretations of the Teresina Formation deposits.

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Non-marine arthropod traces from the subaerial Ordovician Borrowdale Volcanic Group, English Lake District

Cited by 119 publications

References 17 publications

Scoyenia burrows from Ordovician palaeosols of the Juniata Formation in Pennsylvania

Scoyenia burrows from Ordovician palaeosols of the Juniata Formation in Pennsylvania

Siluro-Devonian trace fossils from the Mereenie Sandstone, Kings Canyon, Watarrka National Park, Amadeus Basin, Northern Territory, Australia

Trace fossils from the Permian Teresina Formation at Cerro Caveiras (S Brazil)

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