Microreticulation in Cambrian Ostracoda and its relation to similar patterns in tertiary and Recent Ostracoda

Neil, John V.; Bell, Ken

doi:10.1080/00241160500409215

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Ostracoda is one of the oldest crustacean groups; fossils of Ostracoda date back to the Cambrian age (Neil & Bell 2006). Because their carapace consists mainly of CaCO 3, fossilized forms can persist for long periods in sediments and soil.…”

Section: Introductionmentioning

confidence: 99%

Elevational distribution and species diversity of freshwater Ostracoda (Crustacea) in Çankırı region (Turkey)

Külköylüoğlu

Yavuzatmaca

Sari

et al. 2015

Journal of Freshwater Ecology

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We investigated how the richness and ecological characteristics of non-marine ostracod species varied across nine 100-m elevation bands (from 549 to 1457 m) in theÇankırı region. We collected a total of 37 taxa (25 living and 12 sub-recent) from 114 of 130 aquatic sites sampled during September of 2011; 34 of the taxa were new records for the region. Eight widely distributed 'cosmopolitan' species (Candona neglecta, Cypridopsis vidua, Heterocypris incongruens, Ilyocypris bradyi, Limnocythere inopinata, Potamocypris villosa, Prionocypris zenkeri, and Psychrodromus olivaceus) were found more frequently than other species. The first two axes of canonical correspondence analyses (CCA) explained 73.2% of the correlation between 11 species and 5 environmental variables. Of which, electrical conductivity (F D 3.99, p D 0.028) and altitude (F D 2.69, p D 0.004) were the most explanatory (p < 0.05) variables for species. Optimum altitude and water temperature values of the cosmopolitan species were relatively higher than the other species. Significant regression models (p < 0.01, r 2 D 0.81) indicate that the frequency of occurrence was affected by changes in numbers of samplings sites from 549 to 1457 m. When highest numbers of species (15 spp.) were found at the range of 1231À1332 m, numbers of asexual species (10 spp.) were twice of the sexual species (5 spp.) with no statistical difference between numbers of swimming (7 spp.) and non-swimming (8 spp.) species. Results were discussed based on the ecological conditions that individual species prefer.

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Section: Introductionmentioning

confidence: 99%

Elevational distribution and species diversity of freshwater Ostracoda (Crustacea) in Çankırı region (Turkey)

Külköylüoğlu

Yavuzatmaca

Sari

et al. 2015

Journal of Freshwater Ecology

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“…Various species here placed in Neohornibrookella have been previously placed in the genera Hermanites or Jugocythereis (Holden, 1976;Neil, 1994Neil, , 2000aNeil, , 2002Neil, , 2006Neil and Bell, 2006). Neohornibrookella species generally possess two rounded frontal muscles, the lower one often showing evidence of suturing and sometimes becoming fully divided to produce a frontal muscle scar pattern composed of three scars.…”

Section: Hermanites Jugocythereis and Thaerocythere Comparisonsmentioning

confidence: 99%

Neohornibrookella sorrentae (Chapman and Crespin, 1928) and allied ostracod taxa from the Neogene of southeastern Australia: Systematic and palaeoceanographical relationships, palaeoecology and palaeobiogeography

Warne

Whatley

2016

Marine Micropaleontology

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This is the author accepted manuscript. The final version is available from Elsevier via http://dx.doi.org/10.1016/j.marmicro.2016.04.003Three closely allied shallow marine taxa, Neohornibrookella sorrentae (Chapman and Crespin), Neohornibrookella glyphica (Neil), and Neohornibrookella nepeani sp. nov. are recorded from latest early Miocene to late Pliocene strata in southeastern Australia. These taxa, together with Neohornibrookella quadranodosa (Holden) from the Miocene of Midway Island (Northwestern Hawaiian Islands), form a morphologically distinct group of relatively large species (the sorrentae-group) within the genus Neohornibrookella Jellinek. Latitudinal expansion of the subtropical and warm-temperate climatic belts together with the influence of warm western boundary surface currents associated with the North and South Pacific gyres, are likely to have played key roles in the Miocene dispersal of this species group. Species of the sorrentae-group first migrated south from equatorial west Pacific regions into southeastern Australia during the early Miocene, under the influence of the East Australian Current. During three time intervals (i) latest early Miocene, (ii) latest late Miocene and (iii) earliest late Pliocene, forceful pulses of the East Australian Current played a significant role in propelling the widespread distribution of thermophilic Neohornibrookella species across southeast Australian shallow marine realms. During intervening middle and late Miocene times, Neohornibrookella species are only sporadically present across the Bass Strait region of southeast Australia, indicating a weaker East Australian Current influence and the cooling influence of coastal upwelling. During the midearly Pliocene Neohornibrookella species disappeared from the western Bass Strait region, suggesting the complete exclusion of East Australian Current waters from this region. This was probably due to the counteracting influence of the eastward flowing Zeehan Current (extension of the Leeuwin Current) impinging on the western Bass Strait region. This mid early Pliocene palaeobiogeographical partition in Bass Strait, defined by the distribution of sorrentae-group species, is here termed the Bassian Gateway. The two species, N. sorrentae and N. glyphica, occur concurrently during the mid Miocene in southeast Australia, but are associated with different lithofacies. It is hypothesised that there is a heterochronic evolutionary relationship expressed in the ornament of these two species. The thaerocytherid genera Neohornibrookella Jellinek, Tenedocythere Sissingh and Bosasella Bonaduce are here included in the new ostracod subfamily TenedocytherinaeauthorsversionPeer reviewe

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AWalcottella-like bradoriid (Arthropoda) from the lower Cambrian of Sweden

Streng¹,

Ebbestad²,

Moczydłowska³

2008

GFF

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Microreticulation in Cambrian Ostracoda and its relation to similar patterns in tertiary and Recent Ostracoda

Cited by 3 publications

References 12 publications

Elevational distribution and species diversity of freshwater Ostracoda (Crustacea) in Çankırı region (Turkey)

Elevational distribution and species diversity of freshwater Ostracoda (Crustacea) in Çankırı region (Turkey)

Neohornibrookella sorrentae (Chapman and Crespin, 1928) and allied ostracod taxa from the Neogene of southeastern Australia: Systematic and palaeoceanographical relationships, palaeoecology and palaeobiogeography

AWalcottella-like bradoriid (Arthropoda) from the lower Cambrian of Sweden

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