Pre–Younger Dryas megafaunal extirpation at Rancho La Brea linked to fire-driven state shift

FR O'Keefe, RE Dunn, EM Weitzel, MR Waters… - Science, 2023 - science.org
The cause, or causes, of the Pleistocene megafaunal extinctions have been difficult to
establish, in part because poor spatiotemporal resolution in the fossil record hinders …

Forage silica and water content control dental surface texture in guinea pigs and provide implications for dietary reconstruction

DE Winkler, E Schulz-Kornas… - Proceedings of the …, 2019 - National Acad Sciences
Recent studies have shown that phytoliths are softer than dental enamel but still act as
abrasive agents. Thus, phytolith content should be reflected in dental wear. Because native …

Everything matters: Molar microwear texture in goats (Capra aegagrus hircus) fed diets of different abrasiveness

E Schulz-Kornas, DE Winkler, M Clauss… - Palaeogeography …, 2020 - Elsevier
There is an ongoing discourse about whether or not external abrasives influence the
microscopic wear in herbivore teeth, including a statement that “dust does not matter”. We …

Dust and grit matter: abrasives of different size lead to opposing dental microwear textures in experimentally fed sheep (Ovis aries)

NL Ackermans, DE Winkler, LF Martin… - Journal of …, 2020 - journals.biologists.com
External abrasives ingested along with the herbivore diet are considered main contributors
to dental wear, though how the different sizes and concentrations of these abrasives …

Evolution of the family Equidae, subfamily Equinae, in North, central and south America, Eurasia and Africa during the plio-pleistocene

O Cirilli, H Machado, J Arroyo-Cabrales… - Biology, 2022 - mdpi.com
Simple Summary The family Equidae enjoys an iconic evolutionary record, especially the
genus Equus which is actively investigated by both paleontologists and molecular biologists …

Mesowear represents a lifetime signal in sheep (Ovis aries) within a long-term feeding experiment

NL Ackermans, LF Martin, D Codron, J Hummel… - Palaeogeography …, 2020 - Elsevier
A herbivore's diet can affect its teeth by causing different types of wear. Browsers typically
have sharper, higher cusps, while grazers show lower, blunter cusps, presumably due to the …

[HTML][HTML] Causes and consequences of Pleistocene megafaunal extinctions as revealed from Rancho La Brea mammals

LRG DeSantis, JM Crites, RS Feranec, K Fox-Dobbs… - Current Biology, 2019 - cell.com
The fossils preserved in the Rancho La Brea" tar" seeps in southern California span the
past∼ 50,000 years and provide a rare opportunity to assess the ecology of predators (eg …

Stable isotopic analysis of fossil Bison tooth enamel indicates flexible dietary ecology across Pleistocene North America

FC Hardy, SM Rowland - Quaternary Science Reviews, 2024 - Elsevier
The arrival of Bison in North America significantly affected competitive relationships among
herbivores and may have played an important role in the eventual extinction of …

Controlled feeding experiments with diets of different abrasiveness reveal slow development of mesowear signal in goats (Capra aegagrus hircus)

NL Ackermans, DE Winkler… - Journal of …, 2018 - journals.biologists.com
Dental mesowear is applied as a proxy to determine the general diet of mammalian
herbivores based on tooth-cusp shape and occlusal relief. Low, blunt cusps are considered …

Dietary ecology of Pleistocene mammoths and mastodons as inferred from dental microwear textures

GJ Smith, LRG DeSantis - Palaeogeography, Palaeoclimatology …, 2018 - Elsevier
Abstract The Columbian mammoth (Mammuthus columbi) and the American mastodon
(Mammut americanum) have traditionally been considered to have been ecologically …