Ecology, shell morphology, anatomy and sperm ultrastructure of the caenogastropod Pyrgula annulata, with a discussion of the relationship between the ‘Pyrgulidae’ and Caspian and Baikalian Rissooideans

Riedel, Frank; Healy, John M.; Röpstorf, Peter; Sitnikova, T. Ya.

doi:10.1016/s0075-9511(01)80031-1

Cited by 15 publications

(14 citation statements)

References 6 publications

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“…The great intraspecific variability in Caspiohydrobia grimmi suggests unstable environmental conditions particularly with regard to salinity and temperature changes. Comparable shell-morphological reactions have been demonstrated in other ecosystems and habitats, respectively (see e.g., Bandel et al 1997;Bandel and Riedel 1998;Riedel et al 2001). The environmental change in the Aral Sea during the last millennium is directly mirrored by the sequence of five to six different faunal assemblages found in the cores.…”

Section: Discussionmentioning

confidence: 81%

The late Holocene mollusc fauna of the Aral Sea and its biogeographical and ecological interpretation

Filippov

Riedel

2009

Limnologica

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The Aral Sea, in 1960 the fourth largest lake on Earth, has since experienced a catastrophic environmental change, which appears to be mainly a result of human impact. Here, we attempt to add to a better understanding of environmental changes during the last millennium by using fossil mollusc assemblages obtained from 10 sediment cores, which were taken by gravity coring in 1991. The biogeographical analysis demonstrates that no endemic molluscs have existed in the Aral Sea during the last 1000 years. The investigated taxa are of Caspian and Palaearctic origin. The molluscan biodiversity is much lower than previously assumed and particularly low for such a large lake, indicating unstable ecological conditions during the period investigated. Using comparative ecological analyses of thanatocoenoses and stable isotope ratios in gastropod shells, we conclude that the main lake level changes of the last millennium were strong and abrupt, showing relative high stands at about 1300 AD and 1650 AD.

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Section: Discussionmentioning

confidence: 81%

The late Holocene mollusc fauna of the Aral Sea and its biogeographical and ecological interpretation

Filippov

Riedel

2009

Limnologica

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“…The type species of Pyrgula De Cristofori & Jan, 1832, P. annulata (Linnaeus, 1758), lives in freshwater lakes and springs in Italy and Dalmatia (Welter-Schultes 2012). Shell morphology, anatomy and protoconch characteristics are very similar to Pontocaspian Pyrgulinae, e.g., some species of Turricaspia (compare also discussion in Riedel et al 2001). However, molecular evidence suggests that Pyrgula annulata is only distantly related to the Pontocaspian species flock within the Pyrgulinae, with the last common ancestor dating back to the late Miocene (Wilke et al 2007).…”

Section: Systematic Paleontologymentioning

confidence: 73%

A late Pleistocene gastropod fauna from the northern Caspian Sea with implications for Pontocaspian gastropod taxonomy

Neubauer¹,

Velde²,

Yanina³

et al. 2018

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The present paper details a very diverse non-marine gastropod fauna retrieved from Caspian Pleistocene deposits along the Volga River north of Astrakhan (Russia). During time of deposition (early Late Pleistocene, late Khazarian regional substage), the area was situated in shallow water of the greatly expanded Caspian Sea. The fauna contains 24 species, of which 16 are endemic to the Pontocaspian region and 15 to the Caspian Sea. The majority of the species (13) belongs to the Pyrgulinae (Hydrobiidae), a group famous for its huge morphological variability in the Pontocaspian region. The phenotypic diversity has led to an inflation of genus and species names in the literature. New concepts are proposed for many of the genera and species found in the present material, with implications for the systematics and taxonomy of the entire Pontocaspian gastropod fauna. Laevicaspia vinarskii sp. n. is described as a new species. This contribution is considered a first step in revising the Pontocaspian gastropod fauna.

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“…Eighteen specimens of Falsipyrgula pfeiferi were collected from the littoral zone in Lake Eǧirdir, Isparta, Turkey (38 11.06 To compare these species conchologically, detailed shell documentation of the mentioned species are provided with SEM images; only Pyrgula annulata is not covered here because it was recently described in detail by Riedel et al (2001). Published images and descriptions of radulae and of anatomical characters are reviewed and re-evaluated together with new own observations.…”

Section: Methodsmentioning

confidence: 99%

“…In addition to the traditional teleoconch characteristics ( Fig. 3), the protoconch ornamentation, proportions and shape are now generally accepted as useful taxonomic characters not only in marine gastropods with a planktotrophic larva in their ontogeny (e.g., Bandel 1982;Riedel et al 2001;Kaim 2004).…”

Section: Shell Morphologymentioning

confidence: 99%

“…The here described Turricaspia is very similar to the Miocene Aenigmopyrgus steklovi Popova & Starobogatov, 1970 from the Altai region in teleoconch as well as protoconch characters. These two species have almost the same number of whorls, dimensions and probably type of ornamentation which is still, however, imperfectly known for A. steklovi (see Riedel et al 2001).…”

Section: Comparative Remarksmentioning

confidence: 99%

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Evolutionary trends and relationships in hydrobiids (Mollusca, Caenogastropoda) of the Azov-Black Sea Basin in the light of their comparative morphology and paleozoogeography

Anistratenko

2008

Zool. Reihe

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A recent phylogenetic study based on mitochondrial DNA data suggested that the hydrobiid genus Falsipyrgula from SW Anatolia and Euxinipyrgula from the Azov‐Black Sea Basin are closely related. Here, new data on the protoconch morphology are provided and radular and anatomical data of this group of hydrobiid gastropods from the Azov‐Black Sea Basin are reviewed. It is also shown that the supposed close relationship between the two aforesaid genera is reflected in an involved combination of similarity and dissimilarity of their representatives. The most prominent teleoconch dissimilarity of Falsipyrgula and Euxinipyrgula is a keel in former and absence of a keel in latter. Homology and origin of the keel in Falsipyrgula from the shoulder of Euxinipyrgula is hypothesized and discussed in detail. Protoconch morphology and characters of the reproductive systems of both sexes suggest that Falsipyrgula is more similar to Euxinipyrgula from the Azov‐Black Sea Basin than to any other known hydrobiid from the Balkan (e.g., Pyrgula and Dianella). Paleontological data and the region's paleogeography suggest that the evolution of the genus Falsipyrgula is historically connected to the Black Sea Basin rather than to the Balkan's ancient lakes Ohrid or Prespa. The Anatolian genus Falsipyrgula and the Azov‐Black Sea Basin's genera Turricaspia and Euxinipyrgula are attributed to the subfamily Turricaspiinae B. Dybowski & Grochmalicki, 1915. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Ecology, shell morphology, anatomy and sperm ultrastructure of the caenogastropod Pyrgula annulata, with a discussion of the relationship between the ‘Pyrgulidae’ and Caspian and Baikalian Rissooideans

Cited by 15 publications

References 6 publications

The late Holocene mollusc fauna of the Aral Sea and its biogeographical and ecological interpretation

The late Holocene mollusc fauna of the Aral Sea and its biogeographical and ecological interpretation

A late Pleistocene gastropod fauna from the northern Caspian Sea with implications for Pontocaspian gastropod taxonomy

Evolutionary trends and relationships in hydrobiids (Mollusca, Caenogastropoda) of the Azov-Black Sea Basin in the light of their comparative morphology and paleozoogeography

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