Leperditicopid Arthropods (Ordovician-Late Devonian): Functional Morphology and Ecological Range

Vannier, Jean-Claude; Wang, Shang Qi; Coen, Michel

doi:10.1666/0022-3360(2001)075<0075:laoldf>2.0.co;2

Cited by 47 publications

(23 citation statements)

References 19 publications

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“…The rock−form− ing assemblage includes the nuculanid bivalve Palaeoneilo tschortkovensis and more diverse ostracods (Leperditia tyra− ica and several species of Welleriella, among others; see full faunal lists in Nikiforova et al 1972: 247-250). In fact, re− markable leperditicopid microcoquinas probably record large populations of detritus−feeding euryhaline arthropods on mi− crobial and/or algal mats developed in tidal mudflats and supratidal marshes, within semi−restricted lagoons, bays or estuarian complexes (Vannier et al 2001).…”

Section: Palaeoenvironment and Paleoecologymentioning

confidence: 99%

Palynology and Microfacies of Lower Devonian Mixed Carbonate-Siliciclastic Deposits in Podolia, Ukraine

Filipiak¹,

Zatoń²,

Szaniawski³

et al. 2012

Acta Palaeontologica Polonica

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Section: Palaeoenvironment and Paleoecologymentioning

confidence: 99%

Palynology and Microfacies of Lower Devonian Mixed Carbonate-Siliciclastic Deposits in Podolia, Ukraine

Filipiak¹,

Zatoń²,

Szaniawski³

et al. 2012

Acta Palaeontologica Polonica

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“…WHATLEY et al 1993), their systematic affinities ate unclear, compounded by the absence of post-Devonian representatives of the group and of evidence from soft tissue preservation (VANNIER et al 2001 We have not included the Leperditicopida.…”

Section: Recognising Ostracods In the Fossil Recordmentioning

confidence: 99%

“…1; SIVETER et al 2003aSIVETER et al , 2007. However, as their soft anatomy is unknown, their biological affinities are uncertain (for a review of the group see VANNIER et al 2001). Two arthropod groups with bivalved carapaces that have traditionally been suggested as the forerunners of ostracods (e.g.…”

Section: Introductionmentioning

confidence: 99%

The earliest ostracods: the geological evidence

Williams

Siveter

Salas

et al. 2008

Senckenbergiana lethaea

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The oldest assumed ostracods appear in the fossil record from the Tremadocian Paltodus deMfer conodont Biozone. Although geographically widespread these early ostracods have no obvious Cambrian antecedents. Their first appearance at ca. 485 Ma contrasts with molecular evidence that suggests a much earlier (latest Proterozoic or Cambrian) origin for ostracods. Some Cambrian bivalved arthropods such as Altajanella and Vojbokalina, conventionally referred to the Bradoriida, have carapace morphologies that resemble Ordovician palaeocopid ostracods, though such a relationship is unproven without soft part anatomy. Evidence from preserved soft anatomy demonstrates that Bradoriida, such as Kunrningella, and Phosphatocopida, essentially the Cambrian 'ostracod' record of traditional usage, belong outside the Eucrustacea. Early Ordovician ostracods appeared first in shallow marine, oxygenated environments on shelf margins, in a similar setting to other elements of the 'Paleozoic fauna'. "Iheir biodiversity was low (3 named genera and ca. 12 species), though some taxa such as Nanopsis and Eopilla achieved widespread dispersal between major Ordovician palaeocontinents. As bradoriids were largely extinct by the Late Cambrian, ostracods do not appear to have directly competed with them for shalIow marine environments. The rapid colonisation of these settings by ostracods may have been Ÿ by the available ecospace vacated by Bradoriida.

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“…The Leperditicopida, a putative ostracod group (WHATLEV et al 1993), occur from the Ordovician to Devonian (BEP,, , VANNIER et al 2001). They are significantly larger than nearly all other ostracods, and ate found in hypersaline waters in the Ordovician (BARDAN 1984, W~tHAMS & SIWTER 1996, and brackish to supposed fresh waters in the Devonian (FRIEDMAN & LUNDIN 1998, KNOX & GORDON 1999.…”

Section: Hypersaline Watersmentioning

confidence: 99%

“…They are significantly larger than nearly all other ostracods, and ate found in hypersaline waters in the Ordovician (BARDAN 1984, W~tHAMS & SIWTER 1996, and brackish to supposed fresh waters in the Devonian (FRIEDMAN & LUNDIN 1998, KNOX & GORDON 1999. They common[y occur in low diversity communities, frequently associated with stromatolitic limestones (see SIVETER 1984, VANNIER et al 2001, ~Q~ARSHAUER & SMOSNA 1977. Although the Leperditicopida were seemingly adapted to a range of nonmarine environments, their status as ostracods is uncertain as no soft parts are known.…”

Section: Hypersaline Watersmentioning

confidence: 99%

A review of the Carboniferous colonisation of non-marine environments by ostracods

Bennett

2008

Senckenbergiana lethaea

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Ihis review examines the nature and chronology of the transition ofostracods from marine to non-marine aquatic environments in the Devonian and Carboniferous. There is putative evidence of ostracods in brackish waters from the middle Silurian, but more robust evidence from the Devonian. The first putative freshwater ostracods are species of the genera Carbonita and Geisina which are found in the early to middle Carboniferous Coal Measures. Freshwater ostracods are common in the middle Pennsylvanian CoalMeasures of late Carboniferous age, with species of genera such as Darwinula, Carbonita, Candona and Cypridopsis. The Lower Carboniferous Vis› succession from the Midland V:alley of Scotland provides a unique range of sedimentary environments from marine to non-marine, and a diverse range of ostracods and macrofauna. Ir is an ideal sequence to study the radiation of the Ostracoda from marine to non-marine realms. Non-marine species of Carbonita are found in the lower Vis› associated with spirorbids, Naiadites, ~~theria, plant and fish fragments. Marginal marine species include the genera GeMna, Paraparchites, Shemonael[a and Cave[lina, all ofwhich are eurytopic. The first non-marine environments occupied by ostracods were near the shoreline, and influenced by marine transgressions. The adaptations needed to survive in freshwater or low salinities would have included changes in osmoregulation, feeding, and reproductive strategies such as parthenogenesis, to enable opportunistic colonisation of temporary freshwater habitats such as seasonal pools.

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Leperditicopid Arthropods (Ordovician-Late Devonian): Functional Morphology and Ecological Range

Cited by 47 publications

References 19 publications

Palynology and Microfacies of Lower Devonian Mixed Carbonate-Siliciclastic Deposits in Podolia, Ukraine

Palynology and Microfacies of Lower Devonian Mixed Carbonate-Siliciclastic Deposits in Podolia, Ukraine

The earliest ostracods: the geological evidence

A review of the Carboniferous colonisation of non-marine environments by ostracods

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