scholarly journals Protoconch enlargement in Western Atlantic turritelline gastropod species following the closure of the Central American Seaway

2019 ◽  
Vol 9 (9) ◽  
pp. 5309-5323 ◽  
Author(s):  
Stephanie Sang ◽  
Dana Suzanne Friend ◽  
Warren Douglas Allmon ◽  
Brendan Matthew Anderson
Keyword(s):  
Central American ◽  
Gastropod Species ◽  
Western Atlantic ◽  
Central American Seaway

scholarly journals PROTOCONCH ENLARGEMENT IN WESTERN ATLANTIC TURRITELLINE GASTROPOD SPECIES FOLLOWING THE CLOSURE OF THE CENTRAL AMERICAN SEAWAY

2018 ◽  
Author(s):  
Brendan M. Anderson ◽  
◽  
Stephanie Sang ◽  
Stephanie Sang ◽  
Dana S. Friend ◽  
...  
Keyword(s):  
Central American ◽  
Gastropod Species ◽  
Western Atlantic ◽  
Central American Seaway

Gradual Miocene to Pleistocene uplift of the Central American isthmus: Evidence from tropical American tonnoidean gastropods

2001 ◽  
Vol 75 (3) ◽  
pp. 706-720 ◽  
Author(s):  
Alan G. Beu
Keyword(s):  
Costa Rica ◽  
Sea Level ◽  
Larval Transport ◽  
Central American ◽  
Eastern Pacific ◽  
Early Pleistocene ◽  
Western Atlantic ◽  
Late Pliocene ◽  
Central American Seaway ◽  
Middle Pliocene

Tonnoidean gastropods have planktotrophic larval lives of up to a year and are widely dispersed in ocean currents; the larvae maintain genetic exchange between adult populations. They therefore are expected to respond rapidly to new geographic barriers by either extinction or speciation. Fossil tonnoideans on the opposite coast of the Americas from their present-day range demonstrate that larval transport still was possible through Central America at the time of deposition of the fossils. Early Miocene occurrences of Cypraecassis tenuis (now eastern Pacific) in the Caribbean probably indicate that constriction of the Central American seaway had commenced by Middle Miocene time. Pliocene larval transport through the seaway is demonstrated by Bursa rugosa (now eastern Pacific) in Caribbean Miocene-latest Pliocene/Early Pleistocene rocks; Crossata ventricosa (eastern Pacific) in late Pliocene rocks of Atlantic Panama; Distorsio clathrata (western Atlantic) in middle Pliocene rocks of Ecuador; Cymatium wiegmanni (eastern Pacific) in middle Pliocene rocks of Atlantic Costa Rica; Sconsia sublaevigata (western Atlantic) in Pliocene rocks of Darien, Pacific Panama; and Distorsio constricta (eastern Pacific) in latest Pliocene-Early Pleistocene rocks of Atlantic Costa Rica. Continued Early or middle Pleistocene connections are demonstrated by Cymatium cingulatum (now Atlantic) in the Armuelles Formation of Pacific Panama. Tonnoideans indicate that the Central American seaway began to be constricted after early Miocene time, and some larval transport through the seaway was possible throughout Pliocene time. Intermittent marine connections were maintained at least during late Pliocene to early Pleistocene interglacial periods of high sea-level, and alternated with a land bridge during glacial periods of low sea-level.

Occurrence and biogeographic significance of Heliaster (Echinodermata: Asteroidea) from the Pliocene of southwest Florida

1988 ◽  
Vol 62 (01) ◽  
pp. 126-132 ◽  
Author(s):  
Douglas S. Jones ◽  
Roger W. Portell
Keyword(s):  
Central American ◽  
Eastern Pacific ◽  
Whole Body ◽  
Marine Fauna ◽  
Western Atlantic ◽  
Southwest Florida ◽  
Extant Species ◽  
Geologic Record ◽  
Central American Isthmus

Whole body asteroid fossils are rare in the geologic record and previously unreported from the Cenozoic of Florida. However, specimens of the extant species,Heliaster microbrachiusXantus, were recently discovered in upper Pliocene deposits. This marks the first reported fossil occurrence of the monogeneric Heliasteridae, a group today confined to the eastern Pacific. This discovery provides further non-molluscan evidence of the close similarities between the Neogene marine fauna of Florida and the modern fauna of the eastern Pacific. The extinction of the heliasters in the western Atlantic is consistent with the pattern of many other marine groups in the region which suffered impoverishment following uplift of the Central American isthmus.

FLOW REVERSAL IN THE CENTRAL AMERICAN SEAWAY DURING OR AFTER THE OLIGOCENE MIOCENE TRANSITION

2017 ◽  
Author(s):  
Andrew Jeffrey Fraass ◽  
◽  
R. Mark Leckie ◽  
Christopher M. Lowery ◽  
Robert DeConto
Keyword(s):  
Flow Reversal ◽  
Central American ◽  
Central American Seaway

scholarly journals Influence of the Central American Seaway and Drake Passage on ocean circulation and neodymium isotopes: A model study

2014 ◽  
Vol 29 (12) ◽  
pp. 1214-1237 ◽  
Author(s):  
Patrik L. Pfister ◽  
Thomas F. Stocker ◽  
Johannes Rempfer ◽  
Stefan P. Ritz
Keyword(s):  
Ocean Circulation ◽  
Drake Passage ◽  
Central American ◽  
Neodymium Isotopes ◽  
Model Study ◽  
Central American Seaway

Middle Miocene closure of the Central American Seaway

Science ◽  
2015 ◽  
Vol 348 (6231) ◽  
pp. 226-229 ◽  
Author(s):  
C. Montes ◽  
A. Cardona ◽  
C. Jaramillo ◽  
A. Pardo ◽  
J. C. Silva ◽  
...  
Keyword(s):  
Middle Miocene ◽  
Central American ◽  
Central American Seaway

Biogeography of Iberian Atlantic Neogene marginelliform gastropods (Marginellidae, Cystiscidae): global change and transatlantic colonization

2011 ◽  
Vol 85 (6) ◽  
pp. 1052-1066 ◽  
Author(s):  
Carlos Marques Da Silva ◽  
Bernard Landau ◽  
Rafael La Perna
Keyword(s):  
West Africa ◽  
Sea Water ◽  
Atlantic Coast ◽  
Central American ◽  
Marine Gastropods ◽  
High Productivity ◽  
Complex Process ◽  
Central American Seaway ◽  
Central Portugal ◽  
The Caribbean

The Marginellidae Fleming and the Cystiscidae Stimpson, herein collectively referred to as marginelliform gastropods, are convergent families of thermophilic marine gastropods. Shallow-water marginelliform gastropods are found in the Ibero-Moroccan Gulf and Mediterranean, diversity rapidly increasing towards tropical West Africa. Surprisingly, in the tropical and subtropical European Miocene fossil record, marginelliform genera of tropical affinity such asPersiculaSchumacher andPrunumHerrmannsen, occurring today in West Africa, are altogether missing. Others, such asMarginellaLamarck, are present only in the southwestern Iberian and Mediterranean Neogene record. This work describes the marginelliform gastropods from the Atlantic Iberian Neogene. Ten species are recorded, of which three are new,Persicula mikhailovaen. sp.,Gibberula costaen. sp., andGibberula brebionin. sp. This study shows thatGibberulaSwainson andVolvarinaHinds have been present in Europe since the Eocene.Marginellamay have originated in southern Africa and migrated north to Europe in the Miocene, never extending further north than west central Portugal.PersiculaandPrunumprobably originated in the Caribbean and migrated east during the Pliocene, following closure of the Central American Seaway. The colonization of the Pliocene European Atlantic coast by gastropods of these genera was selective, only where high sea-water temperature and high productivity were combined. These findings suggest that post-Messinian recolonization of the Mediterranean during the Pliocene was a complex process, involving colonization by groups originating in various regions of the Atlantic, including Europe, Africa and the Americas.

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