Paleocene decapod Crustacea from the Rancho Nuevo Formation (Parras Basin-Difunta Group), northeastern Mexico

2007 ◽  
Vol 81 (6) ◽  
pp. 1432-1441 ◽  
Author(s):  
Francisco J. Vega ◽  
Torrey Nyborg ◽  
René H. B. Fraaye ◽  
Belinda Espinosa
Keyword(s):  
New Species ◽  
Abundant Species ◽  
Decapod Crustaceans ◽  
Mississippi Embayment ◽  
Decapod Crustacea ◽  
Two New Species ◽  
Northeastern Mexico

Nine species, including two new species of decapod crustaceans, are described from the Paleocene Rancho Nuevo Formation, collected from two localities of the Parras Basin, southeast Coahuila state, Mexico. The astacidEnoploclytia gardnerae(Rathbun, 1935) is represented by a pair of large chelae and one cephalothorax. An incomplete nephropid carapace is identified asEnoploclytiasp. Partial specimens of a callianassid and a pagurid are described. One partial carapace representingLinuparus wilcoxensisRathbun, 1935 is described. A new raninid,Macroacaena venturainew species extends the genus into Mexico.Paraverrucoides alabamensis(Rathbun, 1935) is the most abundant species, followed byTehuacana tehuacanaStenzel, 1944 andViapinnixa perrilliataenew species. Taxonomic affinities of this assemblage confirm influence of the Mississippi Embayment, particularly from Paleocene stratigraphic units of Texas and Alabama.

Two new species of Astragalus (Leguminosae) from northeastern Mexico

Brittonia ◽  
1994 ◽  
Vol 46 (4) ◽  
pp. 335-339
Author(s):  
José A. Villarreal Q. ◽  
M. A. Carranza P.
Keyword(s):  
New Species ◽  
Two New Species ◽  
Northeastern Mexico

Two new species of Melanoplus Stål, 1873 (Orthoptera: Acrididae: Melanoplinae) from northeastern Mexico

Zootaxa ◽  
2013 ◽  
Vol 3669 (3) ◽  
pp. 261
Author(s):  
LUDIVINA BARRIENTOS-LOZANO ◽  
AURORA Y. ROCHA-SÁNCHEZ ◽  
JORGE V. HORTA-VEGA
Keyword(s):  
New Species ◽  
Two New Species ◽  
Northeastern Mexico

Two New Species of Eupatorium (Asteraceae) from Northeastern Mexico

Brittonia ◽  
1985 ◽  
Vol 37 (4) ◽  
pp. 373
Author(s):  
Billie L. Turner
Keyword(s):  
New Species ◽  
Two New Species ◽  
Northeastern Mexico

A new genus-level and two new species-level synonyms in the extinct genus Neolitochropus Lyubarsky & Perkovsky (Coleoptera: Cyclaxyridae)

Zootaxa ◽  
2020 ◽  
Vol 4894 (4) ◽  
pp. 598-599
Author(s):  
MATTHEW L. GIMME ◽  
KAROL SZAWARYN
Keyword(s):  
Life History ◽  
New Species ◽  
New Zealand ◽  
New Genus ◽  
Abundant Species ◽  
Species Level ◽  
Genus Level ◽  
The Family ◽  
Two New Species ◽  
Extinct Genus

Gimmel et al. (2019) recently treated the two fossil taxa of the beetle family Cyclaxyridae (Cucujoidea), a family that is today represented only by two species in New Zealand (Gimmel et al. 2009). Gimmel et al. (2019) synonymized two species from European amber described within the family Phalacridae (Cucujoidea), Stilbus bedovoyi Lyubarsky & Perkovsky, 2011 and Neolitochropus hoffeinsorum Lyubarsky & Perkovsky, 2016, with Neolitochropus bedovoyi (Lyubarsky & Perkovsky, 2011) becoming the valid combination. They treated a total of 13 specimens of this species from across Rovno, Bitterfeld, and Baltic amber deposits, implying a widespread and abundant species in Eocene Europe whose life history, like extant forms, was likely tied to sooty molds (Gimmel et al. 2019). 

Two New Species of Astragalus (Leguminosae) from Northeastern Mexico

Brittonia ◽  
1994 ◽  
Vol 46 (4) ◽  
pp. 335
Author(s):  
Jose A. Villarreal Q. ◽  
M. A. Carranza P.
Keyword(s):  
New Species ◽  
Two New Species ◽  
Northeastern Mexico

Decapod Crustacea of the Beaufort Sea and Arctic Waters Eastward to Cambridge Bay, 1960–65

1969 ◽  
Vol 26 (7) ◽  
pp. 1899-1918 ◽  
Author(s):  
H. J. Squires
Keyword(s):  
Beaufort Sea ◽  
Abundant Species ◽  
Decapod Crustaceans ◽  
Chionoecetes Opilio ◽  
Decapod Crustacea ◽  
Pacific Species ◽  
Sea Coast

The CGS Salvelinus collections of decapod crustaceans from south Beaufort Sea to Cambridge Bay in 1960–65 comprised 1830 specimens of 15 species. Five of the species were not previously recorded from this area. Most abundant species were Sabinea septemcarinata and Eualus gaimardi. Eualus macilentus and E. stoneyi were confined to Bathurst Inlet. Westward setting currents along the Beaufort Sea coast mediate against incursions by Pacific species but Chionoecetes opilio, Hyas coarctatus alutaceus, and a species of Pagurus seemed to have overcome this condition. The species in which the highest percentages of females presumably reproduced annually were Spirontocaris phippsi, S. spinus, and S. septemcarinata.

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