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Heleobia parchappii

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Journal Article
Journal: PALAIOS
Published: 01 April 2015
PALAIOS (2015) 30 (4): 248–257.
...MARIA FLORENCIA PISANO; CLAUDIO GERMÁN DE FRANCESCO; ENRIQUE EDUARDO FUCKS Abstract Assemblages composed of Heleobia parchappii and H. australis constitute the dominant elements in Quaternary deposits of the Pampean Region in the province of Buenos Aires. This study describes and analyzes...
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Fossil shells of  <b>Heleobia</b> <b>parchappii</b>  (left) and  H. australis  (right) sh...
in > PALAIOS
Published: 01 April 2015
Fig. 2.— Fossil shells of Heleobia parchappii (left) and H. australis (right) showing different degrees of fragmentation (top), luster (middle) and corrasion (bottom). Scale bar  =  1 mm.
Image
Fossil shells of  <b>Heleobia</b> <b>parchappii</b>  showing different degrees of surface...
in > PALAIOS
Published: 01 December 2014
Fig. 5.— Fossil shells of Heleobia parchappii showing different degrees of surface alteration. Left to right: good, fair, and poor shell conditions. Scale bar  =  2 mm.
Journal Article
Journal: PALAIOS
Published: 01 December 2013
PALAIOS (2013) 28 (12): 851–862.
... samples (110–140 cm long) from the deepest part of the lakes, and sampled at 1 cm intervals. Six species were identified: Heleobia australis , Heleobia parchappii , Biomphalaria peregrina , Uncancylus concentricus , Succinea meridionalis , and Antillorbis nordestensis . Assemblages were dominated by H...
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Journal Article
Journal: PALAIOS
Published: 01 August 2017
PALAIOS (2017) 32 (8): 528–542.
... the taphonomic alteration suffered by mollusks with depth and determine if this taphonomic alteration varied locally within lakes or between them. Short cores (approximately 30 cm) from littoral environment as well as open water were sampled in each lake. Nine mollusk species were identified: Heleobia parchappii...
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Journal Article
Journal: PALAIOS
Published: 01 December 2014
PALAIOS (2014) 29 (12): 612–623.
...Fig. 5.— Fossil shells of Heleobia parchappii showing different degrees of surface alteration. Left to right: good, fair, and poor shell conditions. Scale bar  =  2 mm. ...
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Journal Article
Journal: PALAIOS
Published: 01 October 2014
PALAIOS (2014) 29 (10): 501–511.
... differences were observed in dead shell condition related to environmental conditions and faunistic composition (thin-/thick-shelled species proportion) in spite of the dominance of one species, Heleobia parchappii. The differences were related to extrinsic (environmental) factors probably due to differential...
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Box plots showing difference in alteration of the external surface (corrasi...
in > PALAIOS
Published: 01 April 2015
Fig. 5.— Box plots showing difference in alteration of the external surface (corrasion and luster) between species. H.p.  =  Heleobia parchappii , H.a.  =  Heleobia australis .
Image
SEM photographs.  A )  Omalonyx  sp. shell showing fragmentation and holes ...
in > PALAIOS
Published: 01 October 2014
Fig. 3.— SEM photographs. A ) Omalonyx sp. shell showing fragmentation and holes at ×18. B, C ) hole detail of Omalonyx sp. shell at ×200 and ×1000 respectively. D–F ) Heleobia parchappii shell showing holes at ×25, ×220, ×1000 respectively. G ) Chilina parchappii shell showing fine
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Mollusks recovered from cores in Nahuel Rucá (NR), Las Mostazas (LM), and L...
in > PALAIOS
Published: 01 August 2017
Fig . 4. Mollusks recovered from cores in Nahuel Rucá (NR), Las Mostazas (LM), and Los Carpinchos (LC). A ) Heleobia parchappii . B ) Succinea meridionalis . C ) Biomphalaria peregrina . D ) Pomacea canaliculata . E ) Heleobia australis . F ) Drepanotrema kermatoides . G
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Mollusks found in living and dead assemblages. A) Pomacea canaliculata (DA)...
in > PALAIOS
Published: 01 June 2012
) Heleobia parchappii (LA), J) Chilina parchappii (LA), K) Succinea meridionalis (DA), L) Omalonyx sp. (LA), M) Musculium argentinum (DA), N) Charopidae (DA), O) Heleobia australis (DA). Scale bar 2 mm.
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Bivariate plots of species proportional abundances of LAs (x-axes) and of D...
in > PALAIOS
Published: 01 June 2012
: sites 16 to 20 respectively. The letters represent: Hp  =  Heleobia parchappii, Bp  =  Biomphalaria peregrina, Ma  =  Musculium argentinum, Cp  =  Chilina parchappii, Uc  =  Uncancylus concentricus, An  =  Antillorbis nordestensis, Sm  =  Stenophysa marmorata, Pc  =  Pomacea canaliculata, O  =  Omalonyx
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Bar chart plot showing species abundance.  A ) Nahuel Rucá (NR) mollusk abu...
in > PALAIOS
Published: 01 August 2017
. E ) Los Carpinchos (LC) species abundance in each depth zone. Abbreviations: Hp = Heleobia parchappii ; Bp = Biomphalaria peregrina ; Uc = Uncancylus concentricus ; Ma = Musculium argentinum ; Sm = Succinea meridionalis ; An = Antillorbis nordestensis ; Ha = Heleobia australis ; Pc = Pomacea
Journal Article
Journal: PALAIOS
Published: 01 June 2012
PALAIOS (2012) 27 (6): 401–413.
...) Heleobia parchappii (LA), J) Chilina parchappii (LA), K) Succinea meridionalis (DA), L) Omalonyx sp. (LA), M) Musculium argentinum (DA), N) Charopidae (DA), O) Heleobia australis (DA). Scale bar 2 mm. ...
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Journal Article
Published: 01 November 2003
Journal of Paleontology (2003) 77 (6): 1159–1181.
... a Dachnowsky corer at a site off the eastern shore of Laguna Hinojales, Argentina (37°34′S; 57°27′W; Fig. 2 ). Two radiocarbon dates were obtained: 4,240 ± 60 years B.P. (Beta-118012) from Heleobia parchappii ( d'Orbigny, 1835 ) and H. australis ( d'Orbigny, 1835 ) shells between 1.02 and 1.06 m; and 440...
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Journal Article
Journal: PALAIOS
Published: 17 December 2019
PALAIOS (2019) 34 (12): 616–630.
... that extend from a central area. The morphological characteristics of both traces however provide strongly different diagnostic features when compared to Type 1 and 2 traces of this study. Tietze and Esquius (2018) describe traces produced by microbioerosion in mollusk shells ( Heleobia parchappii ) from...
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