First record of Bison antiquus from the Late Pleistocene of southern Mexico

2013 ◽  
Vol 42 ◽  
pp. 83-90 ◽  
Author(s):  
Eduardo Jiménez-Hidalgo ◽  
Lucía Cabrera-Pérez ◽  
Bruce J. MacFadden ◽  
Rosalía Guerrero-Arenas
Keyword(s):  
Late Pleistocene ◽  
First Record ◽  
Southern Mexico ◽  
Bison Antiquus

Fossil flower of Staphylea L. from the Miocene amber of Mexico: New evidence of the Boreotropical Flora in low-latitude North America

2017 ◽  
Vol 108 (4) ◽  
pp. 471-478 ◽  
Author(s):  
Ana L. Hernández-Damián ◽  
Sergio R. S. Cevallos-Ferriz ◽  
Alma R. Huerta-Vergara
Keyword(s):  
North America ◽  
Northern Hemisphere ◽  
Fossil Record ◽  
First Record ◽  
High Latitudes ◽  
Low Latitude ◽  
Southern Mexico ◽  
Apparent Lack ◽  
History Of ◽  
New Evidence

ABSTRACTA new flower preserved in amber in sediments of Simojovel de Allende, México, is identified as an extinct member of Staphyleaceae, a family of angiosperms consisting of only three genera (Staphylea, Turpinia and Euscaphis), which has a large and abundant fossil record and is today distributed over the Northern Hemisphere. Staphylea ochoterenae sp. nov. is the first record of a flower for this group, which is small, pedicelled, pentamer, bisexual, with sepals and petals with similar size, dorsifixed anthers and superior ovary. Furthermore, the presence of stamens with pubescent filaments allows close comparison with extant flowers of Staphylea bulmada and S. forresti, species currently growing in Asia. However, their different number of style (one vs. three) and the apparent lack of a floral disc distinguish them from S. ochoterenae. The presence of Staphyleaceae in southern Mexico ca. 23 to 15My ago is evidence of the long history of integration of vegetation in low-latitude North America, in which some lineages, such as Staphylea, could move southwards from high latitudes of the Northern Hemisphere, as part of the Boreotropical Flora. In Mexico it grew in association with tropical elements, as suggested by the fossil record of the area.

A combined mesowear analysis of Mexican Bison antiquus shows a generalist diet with geographical variation

2018 ◽  
Vol 92 (6) ◽  
pp. 1130-1139 ◽  
Author(s):  
Roberto Díaz-Sibaja ◽  
Eduardo Jiménez-Hidalgo ◽  
Javier Ponce-Saavedra ◽  
María Luisa García-Zepeda
Keyword(s):  
North America ◽  
Late Pleistocene ◽  
Dietary Habits ◽  
Feeding Habits ◽  
Volcanic Belt ◽  
Santa Ana ◽  
Dietary Preference ◽  
Sierra Madre Del Sur ◽  
Bison Antiquus ◽  
Generalist Diet

AbstractBison antiquus Leidy, 1852 was one of the largest and most widely distributed megafaunal species during the Late Pleistocene in North America, giving rise to the modern plains bison in the middle Holocene. Despite the importance of the ancient bison, little is known about its feeding ecology. We employed a combination of extended mesowear, and mesowear III to infer the dietary preference and habitat use of three Mexican samples of B. antiquus. These included two northern samples—La Piedad-Santa Ana and La Cinta-Portalitos—from the Transmexican Volcanic Belt morphotectonic Province, as well as one southern sample—Viko Vijin—from the Sierra Madre del Sur morphotectonic province. We found that the northern Mexican samples were primarily nonstrict grazers, whereas the southern sample displays a pattern consistent with mixed feeding habits. This suggests variability among the diets of the bison from these samples, caused by different paleoenvironments. This evidence complements the paleoenvironmental reconstructions in the studied localities; for the northern samples, open prairies composed of patches of woodland or shrubland and, for the southern locality, a fluvial floodplain with short-lived vegetation. In both scenarios, grasses (Poaceae) were nondominant. The dietary habits of our samples of ancient bison in Mexico are the southernmost dietary inference for the species in North America and expand our knowledge of the dietary habits of B. antiquus during the Late Pleistocene.

A new fossil wood of Peltophoroxylon (Leguminosae: Caesalpinioideae) from the El Palmar Formation (late Pleistocene), Entre Ríos, Argentina

IAWA Journal ◽  
2014 ◽  
Vol 35 (2) ◽  
pp. 199-212 ◽  
Author(s):  
R. Soledad Ramos ◽  
Mariana Brea ◽  
Romina Pardo
Keyword(s):  
Late Pleistocene ◽  
Growth Ring ◽  
First Record ◽  
Vessel Diameter ◽  
Middle Part ◽  
Diagnostic Features ◽  
Axial Parenchyma ◽  
Parenchyma Cells ◽  
Ray Parenchyma ◽  
Entre Rios

This paper describes the first record of Peltophoroxylon (Ramanujam) Müller-Stoll et Mädel 1967 from the late Pleistocene of Argentina. The fossil specimens were recovered from the Colonia Ayuí and Punta Viracho fossil localities of the El Palmar Formation, located in the middle part of the Uruguay Basin, eastern Argentina. The diagnostic features are: growth ring boundaries demarcated by marginal parenchyma, medium-sized vestured intervessel pits, vessel-ray parenchyma pits similar in size and shape to intervessel pits, vasicentric to lozenge type aliform axial parenchyma, biseriate (70%) and uniseriate (30%) homocellular rays, non-septate and septate fibers, and long chains (10+) of prismatic crystals in chambered axial parenchyma cells. These features suggest a relationship with Peltophorum (Vogel) Benth. (Leguminosae: Caesalpinioideae). The vessel diameter and vessel density of the El Palmar woods are consistent with the temperate-warm, humid-semiarid climate inferred for this region during the late Pleistocene.

Seasonal Migration of Bison Antiquus from Rancho La Brea, California

1989 ◽  
Vol 31 (1) ◽  
pp. 107-112 ◽  
Author(s):  
George T. Jefferson ◽  
Judith L. Goldin
Keyword(s):  
Young Adult ◽  
Late Pleistocene ◽  
Annual Cycle ◽  
Reproductive Behavior ◽  
Seasonal Migration ◽  
Occlusal Wear ◽  
Migratory Pattern ◽  
Bison Antiquus ◽  
First Time ◽  
Rancho La Brea

AbstractEvidence for annual seasonal migration of extinct Bison antiquus in the late Pleistocene fossil assemblage from Rancho La Brea, California, is demonstrated for the first time. The maturation of individuals from the B. antiquus sample was analyzed using the cheek tooth eruption sequence and occlusal wear patterns in juvenile and young adult inferior dentitions. Individual age of the specimens was established by comparison with wear stages observed in modern B. bison dentitions of known age. Assuming that reproductive behavior was restricted to a specific annual cycle similar to modern B. bison, B. antiquus was seasonally present at Rancho La Brea during the late spring. An annual migratory pattern is indicated by the presence in the assemblage of yearly groups of young individuals of the same age.

Late Pleistocene northward-dispersing Bison antiquus from the Bighill Creek Formation, Gallelli Gravel Pit, Alberta, Canada, and the fate of Bison occidentalis

2008 ◽  
Vol 45 (7) ◽  
pp. 827-859 ◽  
Author(s):  
Michael C. Wilson ◽  
Leonard V. Hills ◽  
Beth Shapiro
Keyword(s):  
Late Pleistocene ◽  
Type Specimen ◽  
Radiocarbon Dates ◽  
Dna Evidence ◽  
Large Size ◽  
Gravel Pit ◽  
Ice Retreat ◽  
America South ◽  
Bison Antiquus ◽  
Clade 1

Late Pleistocene bison skeletal remains from the Gallelli Gravel Pit in the Bighill Creek Formation at Calgary, Alberta, document at least two individuals, including the largest postglacial bison reported from North America south of Beringia. Two partial crania, dated to 11 290 and 10 100 14C years BP, are referred to the southern species Bison antiquus Leidy, indicating northward movement from the midcontinent as ice retreat opened a corridor between Laurentide and Cordilleran ice. Their large size suggests a dispersal phenotype exploiting newly available territory. DNA evidence links the 11 290-year-old bison to Clade 1, which includes modern B. bison . This supports in situ evolution of B. bison from B. antiquus through the intermediate usually called B.“occidentalis” . Bison of B. “occidentalis” character appeared in Alberta about 10 ka BP, and the DNA evidence counters the suggestion of a migratory wave from Beringia. The B. occidentalis type specimen is from Alaska, so this name may be inappropriate for southern populations. Radiocarbon dates suggest that the Bighill Creek Formation paleofauna comprises two faunules separated in time by the Younger Dryas climatic episode.

scholarly journals First Record ofPyramica epinotalis(Hymenoptera: Formicidae) for the United States

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Xuan Chen ◽  
Joe A. MacGown ◽  
Benjamin J. Adams ◽  
Katherine A. Parys ◽  
Rachel M. Strecker ◽  
...  
Keyword(s):  
United States ◽  
Tree Species ◽  
First Record ◽  
The United States ◽  
Pitfall Traps ◽  
Southern Mexico ◽  
Additional Specimen ◽  
Design And Implementation ◽  
Floating Vegetation ◽  
Made In

Pyramica epinotalisis an arboreal dacetine ant previously known only from Brazil, Costa Rica, Ecuador, and southern Mexico. Here we report the first records ofP. epinotalisfor the United States. Collections were made in three parishes across southern Louisiana in cypress-tupelo swamps using floating pitfall traps placed in floating vegetation and arboreal pitfall traps placed on trunks and limbs of three wetland tree species. One additional specimen of this species was collected in Highlands County, Florida. Based on collections of specimens in Louisiana, including multiple dealate females at different localities,P. epinotalisappears to be well established in this state. We discuss the design and implementation of modified arboreal pitfall traps that were instrumental in this discovery.

scholarly journals First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern Mexico

2021 ◽  
Vol 13 (1) ◽  
pp. 7
Author(s):  
Paola López Fuentes ◽  
Manuel de Jesús Anzueto Calvo ◽  
Ernesto Velázquez Velázquez ◽  
Wilfredo A. Matamoros ◽  
Guillermo Salgado Maldonado
Keyword(s):  
Poecilia Reticulata ◽  
Mosquito Control ◽  
River System ◽  
First Record ◽  
Native Fish ◽  
Aquarium Trade ◽  
Neotropical Fish ◽  
Southern Mexico ◽  
The World

Introduction: Due to its colors, shape, size, and simplicity of care, the neotropical fish Poecilia reticulata (guppy) is popular in the aquarium trade. It is also valued as mosquito control and is now found in most of the world. Objective: To report its presence in southern Mexico. Methods: Fish were captured with seine nets in a tributary of the Grijalva River, Chiapas, in August 2019, and March 2020. Results: Two hundred and fifty individuals of P. reticulata were captured. Conclusion: The species, found in México in 1971, has extended its range to the Grijalva Usumacinta river system.

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