scholarly journals Evidence of oceanic dispersal of a disjunctly distributed amphidromous shrimp in Western North America: first record of Macrobrachium occidentale from the Baja California Peninsula

2014 ◽  
Vol 34 (2) ◽  
pp. 199-215 ◽  
Author(s):  
Humberto García-Velazco ◽  
Gopal Murugan ◽  
José Luis Villalobos-Hiriart ◽  
Alejandro M. Maeda-Martínez ◽  
Gabino Rodríguez-Almaraz ◽  
...  
Keyword(s):  
North America ◽  
Baja California ◽  
First Record ◽  
Baja California Peninsula ◽  
Western North America

scholarly journals A new milliped of the genus Stenozonium Shelley 1998 from Washington State, U. S. A.: first record of the genus and family from North of the Columbia River (Polyzoniida: Polyzoniidae)

Zootaxa ◽  
2005 ◽  
Vol 1017 (1) ◽  
pp. 25
Author(s):  
ROWLAND M. SHELLEY ◽  
WILLIAM A. SHEAR
Keyword(s):  
New Species ◽  
North America ◽  
Columbia River ◽  
First Record ◽  
Washington State ◽  
Western North America ◽  
Olympic Peninsula

The new species, Stenozonium leonardi, the northernmost representative of the Polyzoniidae in western North America and the only one north of the Columbia River, is described from the Olympic Peninsula of Washington; it is isolated by some 180 mi (288 km) from S. benedictae Shelley, 1998, in coastal Oregon. Stenozonium alone among the four polyzoniidan genera in western North America consists of entirely allopatric and widely separated species, with one apiece in California, Oregon, and Washington-evidence that it diversified earlier than its ordinal counterparts.

TWO NEW SPECIES IN THE GENUS DIAPHEROMERA (PHASMATOPTERA: NECROSCIOIDEA: HETERONEMIIDAE: HETERONEMIINAE) FROM BAJA CALIFORNIA, MEXICO

1997 ◽  
Vol 129 (6) ◽  
pp. 1141-1149 ◽  
Author(s):  
Vernon R. Vickery
Keyword(s):  
New Species ◽  
Baja California ◽  
First Record ◽  
Baja California Peninsula ◽  
Stick Insects ◽  
Two New Species

AbstractTwo new species of Diapheromera, D. kevani and D. petita, are described from Mexico, the first record of these species and of the genus from Baja California. They were found while studying the stick insects (Phasmatoptera) of the Baja California Peninsula.

A new genus of cassiduloid echinoid from the lower Eocene of the Pacific coast of western North America and a new report of Cassidulus ellipticus Kew, 1920, from the lower Eocene of Baja California Sur, Mexico

1995 ◽  
Vol 69 (3) ◽  
pp. 509-515 ◽  
Author(s):  
Richard L. Squires ◽  
Robert A. Demetrion
Keyword(s):  
North America ◽  
New Genus ◽  
Baja California ◽  
Pacific Coast ◽  
Middle Part ◽  
Baja California Sur ◽  
Western North America ◽  
Lower Eocene ◽  
Shallow Marine ◽  
The Pacific

The cassiduloid echinoid Calilampas californiensis n. gen. and sp. is described from middle lower Eocene (“Capay Stage”) shallow-marine sandstones in both the middle part of the Bateque Formation, Baja California Sur, Mexico, and the lower part of the Llajas Formation, southern California. The new genus is tentatively placed in family Pliolampadidae. The cassiduloid Cassidulus ellipticus Kew, 1920, previously known only from the “Capay Stage” in California, is also present in “Capay Stage” shallow-marine sandstones of the Bateque Formation.

A phytosociological and phytogeographical survey of the coastal vegetation of western North America: beach and dune vegetation from Baja California to Alaska

2011 ◽  
Vol 14 (4) ◽  
pp. 464-484 ◽  
Author(s):  
Manuel Peinado ◽  
Francisco Manuel Ocaña-Peinado ◽  
Juan Luis Aguirre ◽  
José Delgadillo ◽  
Miguel Ángel Macías ◽  
...  
Keyword(s):  
North America ◽  
Baja California ◽  
Coastal Vegetation ◽  
Western North America ◽  
Dune Vegetation

scholarly journals A review of the Branchinecta (Branchiopoda: Anostraca) from the Baja California Peninsula: first record of the giant fairy shrimp B. gigas Lynch, 1937 from Mexico

2015 ◽  
Vol 35 (3) ◽  
pp. 433-440 ◽  
Author(s):  
Hortencia Obregón-Barboza ◽  
Gopal Murugan ◽  
Alejandro M. Maeda-Martínez ◽  
Humberto García-Velazco
Keyword(s):  
Baja California ◽  
First Record ◽  
Baja California Peninsula ◽  
Fairy Shrimp

The milliped genus Tidesmus Chamberlin, 1943 (Polydesmida: Macrosternodesmidae)

Zootaxa ◽  
2007 ◽  
Vol 1656 (1) ◽  
pp. 51-68 ◽  
Author(s):  
WILLIAM A. SHEAR ◽  
ROWLAND M. SHELLEY
Keyword(s):  
North America ◽  
Type Species ◽  
Baja California ◽  
Valid Species ◽  
Western North America ◽  
Type Specimens ◽  
The Family ◽  
Generic Distribution

The family Macrosternodesmidae is redefined and recorded from western North America. Four small-bodied species in Arizona and California, USA, and Baja California Norté, Mexico, are assigned to Tidesmus Chamberlin 1943; Phreatodesmus and Oodedesmus, both authored by Loomis, 1960, are placed in synonymy. Phreatodesmus torreyanus Loomis, 1960 and O. variabilis Loomis, 1960, are transferred into Tidesmus as valid species; P. cooki Loomis, 1960, is a synonym of T. episcopus Chamberlin, 1943, the type species, and P. dentatus Loomis, 1960, is a synonym of P. torreyanus. Brachydesmus hastingsus Chamberlin, 1941, also is referable to Tidesmus; a topotypical male is needed to establish its identity in the absence of authentic type specimens. Tidesmus hubbsi Chamberlin, 1943, based on unidentifiable females, is geographically segregated and incompatible with the otherwise coherent generic distribution. A topotypical male is also necessary to determine its identity; for now, we remove hubbsi from Tidesmus and leave it unassigned.

First lambeosaurine hadrosaurid from Europe: palaeobiogeographical implications

1999 ◽  
Vol 136 (2) ◽  
pp. 205-211 ◽  
Author(s):  
M. L. CASANOVAS ◽  
X. PEREDA SUBERBIOLA ◽  
J. V. SANTAFE ◽  
D. B. WEISHAMPEL
Keyword(s):  
North America ◽  
Iberian Peninsula ◽  
First Record ◽  
Western North America ◽  
Eastern Asia ◽  
Postcranial Remains ◽  
New Material ◽  
Cretaceous Period ◽  
Primitive Member

New dinosaur specimens from the uppermost Cretaceous of Spain represent the first record of a lambeosaurine hadrosaurid from Europe. This discovery, which consists of skull, mandible, and postcranial remains from the Tremp Basin (Lleida Province, Catalonia), is particularly unexpected because lambeosaurines are otherwise well known from western North America and central and eastern Asia. Originally named Pararhabdodon isonensis, a species previously regarded as a basal iguanodontian dinosaur, new material indicates that Pararhabdodon is in fact a primitive member of the lambeosaurine clade. The presence of lambeosaurines on the Iberian Peninsula at the very end of the Cretaceous period is likely due to vicariance rather than dispersal. The distribution of hadrosaurids suggests biogeographic differences across the European archipelago at the end of the Cretaceous.

The genus Spirontocaris Spence Bate, 1888 (Caridea, Decapoda, Thoridae) in western Mexico

Zootaxa ◽  
2017 ◽  
Vol 4320 (2) ◽  
pp. 305
Author(s):  
MICHEL E. HENDRICKX ◽  
MANUEL AYÓN-PARENTE
Keyword(s):  
Baja California ◽  
First Record ◽  
Environmental Data ◽  
Baja California Peninsula ◽  
Organic Carbon Content ◽  
Depth Range ◽  
Western Mexico ◽  
Oxygenated Water ◽  
Minimum Zone ◽  
San Carlos

Four species of Spirontocaris are known from a few records along the coast of the Baja California Peninsula, Mexico: S. prionoata (Todos Santos Bay), S. sica (between San Benito and Cedros Islands), S. snyderi (Cedros Island), and S. truncata (off San Carlos Point). During exploratory surveys off the west coast of the Baja California Peninsula, Mexico, two specimens of Spirontocaris holmesi Holthuis, 1947, and 143 of S. sica Rathbun, 1902 (10 males, 128 females, 2 ovigerous females, and 3 damaged specimens) were collected in benthic trawl and sledge. Both species are illustrated and described. The material of S. holmesi was collected in a single locality, at 220 m depth (known depth range is 150–300 m) and is the first record for western Mexico, while the material of S. sica was collected in five localities, from 710–1102 m depth (known range, 88–849 m), increasing significantly the number of specimens known for this species. Environmental data indicate that S. sica lives below the Oxygen Minimum Zone, in poorly oxygenated water (0.22 to 0.40 ml O2/l), in a temperature range of 4.38 to 5.81 °C. Sediments associated with this species are dominated by silt (>72% in 4 out of 5 localities), with organic carbon content of 18 to 52 mgCorg/g. 

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