Morphométrie et hypersalinité chez Cyprideis torosa (Jones) (Ostracoda, Actuel) dans les salines de Santa-Pola (Alicante, Espagne)

Carbonnel, Gilles

doi:10.3406/sgeol.1983.1638

Cited by 18 publications

(6 citation statements)

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“…For extant C . torosa , Carbonnel (1983) reported minor variations in shape correlated with different salinities, which, however, could not be confirmed by Frenzel et al (2011) .…”

Section: Systematic Palaeontologymentioning

confidence: 76%

On the Miocene Cyprideis species flock (Ostracoda; Crustacea) of Western Amazonia (Solimões Formation): Refining taxonomy on species level

Groß

Ramos

Piller

2014

Zootaxa

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The Miocene mega-wetland of western Amazonia holds a diverse, largely endemic ostracod fauna. Among them, especially the genus Cyprideis experienced a remarkable radiation. Micropalaeontologic investigations of a 400 m long sediment core (~62 km SW Benjamin Constant, Amazonia, Brazil) permitted a taxonomic revision of about two-thirds of hitherto described Cyprideis species. We evaluate the diagnostic value of shell characters and provide an extensive illustration of the intraspecific variability of species. Based on comparative morphology, the 20 recorded Cyprideis species are arranged in groups and subgroups. The “smooth” group comprises C. amazonica, C. kotzianae, C. kroemmelbeini, C. machadoi, C. multiradiata, C. olivencai, C. paralela and C. simplex; the “ornate” group C. curucae nom. nov., C. cyrtoma, C. aff. graciosa, C. inversa, C. ituiae n. sp., C. matorae n. sp., C. minipunctata, C. munoztorresi nom. nov., C. pebasae, C. reticulopunctata, C. schedogymnos and C. sulcosigmoidalis. Five species have been revalidated, two renamed, two synonymised and two are new descriptions. Along with 10 further formally established species, for which a review is pending, Cyprideis keeps at least 30 endemic species in that region during Miocene times. Up to 12 Cyprideis species have been found to occur sympatrically, representing >90 % of the entire ostracod fauna. Ostracod index species enable a biostratigraphic allocation of the well succession to the Cyprideis minipunctata to Cyprideis cyrtoma biozones, corresponding to a late Middle to early Late Miocene age (late Serravallian–early Tortonian).

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“…For extant C . torosa , Carbonnel (1983) reported minor variations in shape correlated with different salinities, which, however, could not be confirmed by Frenzel et al (2011) .…”

Section: Systematic Palaeontologymentioning

confidence: 76%

On the Miocene Cyprideis species flock (Ostracoda; Crustacea) of Western Amazonia (Solimões Formation): Refining taxonomy on species level

Groß

Ramos

Piller

2014

Zootaxa

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“…To confirm freshwater influence in the Spanish marsh deposits, the relative abundances of circular normal pores on Cyprideis torosa were used as indicators for oligohaline conditions (Gliozzi and Mazzini 1998;Anadon et al 2002). Carbonnel (1983) performed detailed morphometric studies using the ostracode Cyprideis torosa from Alicante, Spain, and recognized three similar distinct morphotypes of the taxon associated with marine, hyposaline, and hypersaline conditions. Carbonnel and Haj-Chahine (2002) applied pore morphometric techniques to Miocene Cyprideis pannonica collected from restricted lake deposits in Lebanon.…”

Section: Introductionmentioning

confidence: 99%

Paleosalinity history of middle Holocene lagoonal and lacustrine deposits in the Enriquillo Valley, Dominican Republic based on pore morphometrics and isotope geochemistry of ostracoda

Medley¹,

Tibert²,

Patterson³

et al. 2007

Micropaleontology

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The southwestern region of the Dominican Republic (Enriquillo Valley) contains exceptionally well-preserved, relict marine and saline lake deposits of mid-Holocne age. Abundant euryhaline ostracodes found in this deposit include Cyprideis salebrosa, C. mexicana, C. similis, and C. edentata. Morphometric and geochemical analyses performed on Cyprideis spp. provide high d 18 O and d 13 C values that are coincident with relative abundances of irregularly shaped pores that permeate the ostracode carapace. We recognize three stratigraphic intervals with distinct ostracode pore shape and stable isotope trends: (I) a 4.5-5.0m interval that contains ostracodes with highly irregular shaped pores (multiradiate) and high amplitude variability in d 18 O and d 13 C values; (II) a 5.0-5.6m interval comprised of ostracodes with circular pores and an overall trend towards low d 18 O and d 13 C values; and (III) a 5.6-6.5m interval containing ostracodes with an upward increasing abundance of circular pore shapes coincident with decreasing d 18 O and d 13 C values. When the Enriquillo lagoon was first separated from the Caribbean Sea approximately 4.3 ka, an arid and evaporative climate led to hypersaline water in a restricted lagoon environment. By the middle to late-Holocene, increased precipitation in the valley resulted in a coastal lake system that became progressively oligohaline. Moderate to small amplitude variability in the salinity proxy data (d 18 O) suggest short-term oscillations in the precipitation-evaporation budgets at that time. At least two marine incursions likely contributed to the observed variability in ostracode d 18 O and d 13 C values. Evidence for abrupt changes in base level indicate that climatic factors or also tectonic activity may have contributed to the observed paleoenvironmental trends recorded in these deposits.

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“…ridges, pits and pores) on the carapace of some Recent ostracods is related to the salinity of seawater, with the ornamentation being reduced as the salinity decreases (e.g. Carbonnel 1983; Yang et al . 2002; Frenzel & Boomer 2005).…”

Section: Discussionmentioning

confidence: 99%

Allometry in Late Devonian Podocopa ostracods (Crustacea) and its implications for ostracod ontogeny

Song

Huang

Qie

2023

Papers in Palaeontology

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Podocopa ostracods have abounded in various marine and non‐marine habitats since the early Palaeozoic and left a diverse fossil record in strata worldwide. This is particularly useful for stratigraphic correlation and palaeoenvironmental and palaeogeographical reconstructions. However, despite being the most numerous ostracods during the Palaeozoic, their origins, evolution, ontogeny and phylogeny remain poorly defined. This paper represents the first study of morphological variation in Devonian Platycopida ostracods (an order of Podocopa) using a geometric morphometric approach. Our results identify substantial shape variation in Cribroconcha honggulelengensis Song & Crasquin from the Upper Devonian Hongguleleng Formation of western Junggar, northwest China, demonstrating a remarkable change in juveniles between stages A‐3 and A‐2. Using linear regressions between principal component scores from right lateral view and carapace length, we demonstrate allometric growth patterns for this species. The body plan of C. honggulelengensis developed along an ontological variable: from an ovate outline with rare pores to an oblong outline with dense and large pores. Environmental factors should play an important role in shape determination during ontogeny of C. honggulelengensis.

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Morphométrie et hypersalinité chez Cyprideis torosa (Jones) (Ostracoda, Actuel) dans les salines de Santa-Pola (Alicante, Espagne)

Cited by 18 publications

References 0 publications

On the Miocene Cyprideis species flock (Ostracoda; Crustacea) of Western Amazonia (Solimões Formation): Refining taxonomy on species level

On the Miocene Cyprideis species flock (Ostracoda; Crustacea) of Western Amazonia (Solimões Formation): Refining taxonomy on species level

Paleosalinity history of middle Holocene lagoonal and lacustrine deposits in the Enriquillo Valley, Dominican Republic based on pore morphometrics and isotope geochemistry of ostracoda

Allometry in Late Devonian Podocopa ostracods (Crustacea) and its implications for ostracod ontogeny

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