Browsing by Author "Fortunato, Helena M."

Biogeography and the Tempo of Speciation in Strombinid Gastropods

Fortunato, Helena M. (1999)

Biogeography and the Tempo of Speciation in Strombinid Gastropods

Fortunato, Helena M. (Sociedade Brasileira de Malacologia, 2003)

Calibrating phylogenies with the fossil record

Fortunato, Helena M. (1997)

The Central American land bridge: evolution at work

Fortunato, Helena M. (2008)

Central American Neogene and Recent Marine Molluscan Diversity: An Overview for Conservation Purposes

Fortunato, Helena M. (2004)

Collection Management Featuresof NMITA: a WWW Taxonomy Database

Golden, Julia; Fortunato, Helena M.; Budd, Ann F.; Foster, Charles T., Jr.; Petersen, R. A. (1996)

Comparison of the spermatozoan morphology of Isognomon bicolor and Isognomon alatus (Mollusca, Bivalvia, Isognomonidae)

Introíni, G. O.; Magalhães, C. A.; Fortunato, Helena M.; Recco-Pimentel, S. M. (2009)

In this study we used transmission and scanning electron microscopy to examine the spermatozoan structure of Isognomon bicolor and Isognomon alatus. The spermatozoa of both species were of the primitive or ect-aquasperm ...

Constraints in Development Modes: Adaptation of History

Fortunato, Helena M. (2001)

Contrasting Modes of Larval Development Across the Isthmus of Panamá

Fortunato, Helena M.; Jackson, Jeremy B. C. (Unitas Malacologica, 1998)

Coralline algae as carbonate producers and habitat providers on the Eastern Pacific coast of Panama: preliminary assessment

Fortunato, Helena M.; Schaefer, Priska (2009)

Carbonate production and benthic mollusk abundance and diversity were studied in a series of samples from the Gulfs of Panama and Chiriqui to investigate the contribution of coralline algae to carbonate production and its ...

Coralline Red Algae in Tropical Waters Around Panama: Monitoring Past and Present Environmental Changes

Schafer, P.; Fortunato, Helena M.; Bader, B.; Bauch, Th; Reijmer, J. J. G. (2005)

Desarrollo larval en el grupo Strombina: calibración de la variación morfológica del protoconcho y su utilización para inferir el tipo de desarrollo en especies fósiles

Fortunato, Helena M. (1997)

Direct observations on the larval development and occlusion time in strombinid gastropods

Fortunato, Helena M. (1995)

Diversity and Assemblages of Neogene Caribbean Mollusca of Lower Central America

Jackson, Jeremy B. C.; Todd, Jonathan A.; Fortunato, Helena M.; Jung, Peter (Paleontological Research Institution, 1999)

Do differences in productivity affect molluscan faunas? A preliminary test using tropical eastern Pacific strombinid gastropods

Jackson, Jeremy B. C.; Fortunato, Helena M. (The Paleontological Society at the University of Tennessee, Dept. of Geological Sciences, 1996)

The Ecology of Extinction: Molluscan Feeding and Faunal Turnover in the Caribbean Neogene

Todd, Jonathan A.; Jackson, Jeremy B. C.; Johnson, Kenneth G.; Fortunato, Helena M.; Heitz, A.; Alvarez F., Marcos A.; Jung, Peter (2002)

The Ecology of Extinction: Molluscan Food Webs Implicate Plummeting Nutrient Supply in Plio-Pleistocene Caribbean Faunal Turnover

Todd, Jonathan A.; Jackson, Jeremy B. C.; Johnson, Kenneth G.; Fortunato, Helena M.; Heitz, A.; Jung, Peter (2001)

Environmental change preceded Caribbean extinction by 2 million years

O'Dea, Aaron; Jackson, Jeremy B. C.; Fortunato, Helena M.; Smith, J. Travis; D'Croz, Luis; Johnson, Kenneth G.; Todd, Jonathan A. (2007)

Communicated by W. A. Berggren, Woods Hole Oceanographic Institution, Woods Hole, MA, December 10, 2006 (received for review May 1, 2006)Paleontologists typically treat major episodes of extinction as single and distinct ...

Evolution of the Strombina-Group (Neogastropoda: Columbellidae: Evidence From the Mitochondrial Data Compared With Morphology and the Fossil Record

Fortunato, Helena M.; Gruber, Karl F.; Bermingham, Eldredge (2002)

Evolutionary Paleontology and Informatics: the Neogene Marine Biota of Tropical America (NMITA) Database

Fortunato, Helena M. (Pensoft Publishers, 2003)

Browsing by Author "Fortunato, Helena M."

Browsing by Author "Fortunato, Helena M."

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