Reconstructing the crustal section of the intra-oceanic Caribbean island arc: contraints from the cumulate layered gabbronorites and pyroxenites of the Rio Boba plutonic sequence, northern Dominican Republic

The Neotropical species of the genus Manota Williston are studied, based on material of 146 specimens from French Guiana, Ecuador, Nicaragua, Dominica and the Dominican Republic. Four new species are described, viz. M. corniculata sp. n. (French Guiana), M. pseudocavata sp. n. (French Guiana), M. truuverki sp. n. (French Guiana) and M. vladi sp. n. (Dominican Republic). Manota defecta Williston, 1896, the type species of the genus, is listed from Dominica, representing the first record since its description more than a century ago from a Southern Caribbean Island, St. Vincent. New records of 13 additional species are provided: M. acutistylus Jaschhof & Hippa, 2005 (Dominica), M. aligera Hippa, Kurina & Sääksjärvi, 2017 (French Guiana), M. digitata Hippa, Kurina & Sääksjärvi, 2017 (French Guiana), M. iota Hippa & Kurina, 2013 (French Guiana), M. micula Hippa & Kurina, 2013 (French Guiana), M. nordestina Kurina, Hippa & Amorim, 2018 (French Guiana), M. parva Jaschhof & Hippa, 2005 (Nicaragua), M. pauloides Hippa, Kurina & Sääksjärvi, 2017 (Ecuador), M. perplexa Kurina, Hippa & Amorim, 2017 (Nicaragua), M. rotundistylus Jaschhof & Hippa, 2005 (Ecuador), M. serrulata Hippa, Kurina & Sääksjärvi, 2017 (French Guiana), M. spinosa Jaschhof & Hippa, 2005 (French Guiana), M. subaristata Kurina, Hippa & Amorim, 2017 (Ecuador). The number of Neotropical Manota species has risen to 96.

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Two new species of flattie spiders (Araneae: Selenopidae) and descriptions of undescribed males from the Caribbean

Zootaxa ◽

10.11646/zootaxa.4446.1.9 ◽

2018 ◽

Vol 4446 (1) ◽

pp. 125

Author(s):

SARAH C. CREWS

Keyword(s):

New Species ◽

Dominican Republic ◽

Endemic Species ◽

New Records ◽

Caribbean Island ◽

Two New Species ◽

The Caribbean

Two new species of Selenops, S. anacaona sp. nov. (♀) and S. caonabo sp. nov. (♀), are described from the Dominican Republic on the Caribbean island of Hispaniola. These two new species increase the number of endemic Selenops on Hispaniola to 13, surpassing Cuba, which currently has 11 endemic species. Additionally, the male of S. pensilis Muma, 1953 from Hispaniola is described, as well as the male of S. petrunkevitchi Alayón, 2003 from Jamaica. Full distribution records are given for the new species and the newly described males, and new records are provided for the following species: S. aequalis Franganillo, 1935, S. bocacandensis Crews, 2011, S. candidus Muma, 1953, S. micropalpus Muma, 1953, S. morro Crews, 2011, S. simius Muma, 1953, S. souliga Crews, 2011, and S. submaculosus Bryant, 1940.

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The Imbert Formation of northern Hispaniola: a tectono-sedimentary record of arc-continent collision and ophiolite emplacement in the northern Caribbean subduction-accretionary prism

Solid Earth Discussions ◽

10.5194/sed-7-1827-2015 ◽

2015 ◽

Vol 7 (2) ◽

pp. 1827-1876 ◽

Cited By ~ 2

Author(s):

J. Escuder-Viruete ◽

A. Suárez-Rodríguez ◽

J. Gabites ◽

A. Pérez-Estaún

Keyword(s):

Subduction Zone ◽

Continental Margin ◽

Middle Eocene ◽

Accretionary Prism ◽

Island Arc ◽

Caribbean Island ◽

Stratigraphic Sequence ◽

Oblique Collision ◽

The Caribbean ◽

Ophiolitic Complex

Abstract. In northern Hispaniola, the Imbert Formation (Fm) has been interpreted as an orogenic "mélange" originally deposited as trench-fill sediments, an accretionary (subduction) complex formed above a SW-dipping subduction zone, or the sedimentary result of the early oblique collision of the Caribbean plate with the Bahama Platform in the middle Eocene. However, new stratigraphical, structural, geochemical and geochronological data from northern Hispaniola indicate that the Imbert Fm constitutes a coarsening-upward stratigraphic sequence that records the transition of the sedimentation from a pre-collisional forearc to a syn-collisional piggy-back basin. This piggy-back basin was transported on top of the Puerto Plata ophiolitic complex slab and structurally underlying accreted units of the Rio San Juan complex, as it was emplaced onto the North America continental margin units. The Imbert Fm unconformably overlies different structural levels of the Caribbean subduction-accretionary prism, including a supra-subduction zone ophiolite, and consists of three laterally discontinuous units that record the exhumation of the underlying basement. The distal turbiditic lower unit includes the latest volcanic activity of the Caribbean island arc; the more proximal turbiditic intermediate unit is moderately affected by syn-sedimentary faulting; and the upper unit is a (caotic) olistostromic unit, composed of serpentinite-rich polymictic breccias, conglomerates and sandstones, strongly deformed by syn-sedimentary faulting, slumping and sliding processes. The Imbert Fm is followed by subsidence and turbiditic deposition of the overlying El Mamey Group. The 40Ar / 39Ar plagioclase plateau ages obtained in gabbroic rocks from the Puerto Plata ophiolitic complex indicate its exhumation at ∼ 45–40 Ma (lower-to-middle Eocene), contemporaneously to the sedimentation of the overlying Imbert Fm. These cooling ages imply the uplift to the surface and submarine erosion of the complex to be the source of the ophiolitic fragments in the Imbert Fm, during of shortly after the emplacement of the intra-oceanic Caribbean island-arc onto the continental margin.

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Haitians, Magic, and Money: Raza and Society in the Haitian-Dominican Borderlands, 1900 to 1937

Comparative Studies in Society and History ◽

10.1017/s0010417500019216 ◽

1994 ◽

Vol 36 (3) ◽

pp. 488-526 ◽

Cited By ~ 102

Author(s):

Lauren Derby

Keyword(s):

Dominican Republic ◽

Caribbean Island ◽

Water Flows ◽

National Boundary ◽

Northern Border ◽

Border Towns ◽

Market Women ◽

Small Mound

Sitting on the banks of the shallow riverine waters separating the northern border towns of Dajabón of the Dominican Republic and Ouanaminthe of Haiti, one can see children wade, market women wash, and people pass from one nation to another. They are apparently impervious to the official meaning of this river as a national boundary that rigidly separates these two contiguous Caribbean island nations. Just as the water flows, so do people, goods, and merchandise between the two countries, even as the Dominican border guards stationed on a small mound above the river watch. The ironies of history lie here, as well as the poetics of its remembrance. This river is called El Masacre, a name which recalls the 1937 Haitian massacre, when the water is said to have run scarlet red from the blood of thousands of Haitians killed by machetes there by soldiers under the direction of the Dominican dictator, Rafael M. Trujillo (1930–61).

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