scholarly journals CENOZOIC EXTENSION AND MAGMATISM IN WESTERN MEXICO: LINKING THE SIERRA MADRE OCCIDENTAL SILICIC LARGE IGNEOUS PROVINCE AND THE COMONDÚ GROUP WITH THE GULF OF CALIFORNIA RIFT

2017 ◽  
Author(s):  
Luca Ferrari ◽  
◽  
Teresa Orozco Esquivel ◽  
Scott Bryan ◽  
Margarita López Martínez
Keyword(s):  
Gulf Of California ◽  
Large Igneous Province ◽  
Sierra Madre Occidental ◽  
Western Mexico ◽  
Sierra Madre ◽  
Igneous Province

A Revision of the Archaeological Sequence in Sinaloa, Mexico

1960 ◽  
Vol 25 (4) ◽  
pp. 547-561 ◽  
Author(s):  
J. Charles Kelley ◽  
Howard D. Winters
Keyword(s):  
Cross Correlation ◽  
Southern Illinois ◽  
Sierra Madre Occidental ◽  
Western Mexico ◽  
Sierra Madre ◽  
Southern Illinois University ◽  
Coastal Strip

AbstractAn archaeological sequence for the Sinaloa coastal strip of western Mexico had previously been developed by Sauer and Brand, Isabel Kelly, and Gordon Ekholm. Investigations carried out by Southern Illinois University and associates from 1952 to 1958 in Durango, across the Sierra Madre Occidental to the east of Sinaloa, have established an independent archaeological sequence. The presence of trade pottery and other artifacts from Sinaloa in the Durango sites makes possible an independent check of the Sinaloa sequence. This cross correlation essentially confirms the basic Sinaloa sequence of (early to late) Chametla, Aztatlan, and Culiacan periods, but indicates that there is some overlap between these major horizons and that the Aztatlan period is actually divisible into three more or less sequent phases: an early Lolandis phase, an intermediate Acaponeta phase, and a terminal Guasave phase. Re-examination of the Sinaloa sequence confirms and expands these conclusions, resulting in this revision of the archaeological sequence for Sinaloa. For consistency, a revised terminology for the various phases is also presented.

In disentangling two species limits of Hechtia (Bromeliaceae: Hechtioideae) from Sierra Madre Occidental, a new species is discovered from Durango, Mexico

Phytotaxa ◽  
2021 ◽  
Vol 523 (1) ◽  
pp. 55-72
Author(s):  
IVÓN RAMÍREZ-MORILLO ◽  
PABLO CARRILLO-REYES ◽  
JOSÉ LUIS TAPIA-MUÑOZ ◽  
CLAUDIA J. RAMÍREZ-DÍAZ
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Conservation Status ◽  
Sierra Madre Occidental ◽  
Plant Parts ◽  
Western Mexico ◽  
Sierra Madre ◽  
A New Species ◽  
Female Flowers ◽  
Iucn Criteria

Epitypes are proposed for two species of Hechtia: H. subalata and H. jaliscana, both endemic to Western Mexico. The holotypes of both species consist of fruiting specimens. While the female flowers of both species are extremely similar, the staminate ones are noticeable different: we select staminate vouchers as epitypes to clearly circumscribe both taxa. As a result of the delimitation of the concept Hechtia subalata and its geographical distribution, we identify a new species from Durango, Mexico, previously misidentified as Hechtia subalata: Hechtia marthae. We provide images portraying plant parts of all species, as well as photographs in habitat. Finally, assessments of the conservation status of the three species sensu IUCN criteria are included.

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