scholarly journals Inferences of dietary preferences of Miocene squirrels (Xerinae, Sciuridae) from the Iberian Peninsula and Namibia using microwear analyses and enamel thickness

2020 ◽  
Vol 35 (2) ◽  
pp. 185
Author(s):  
Iris Menéndez ◽  
Ana R. Gómez Cano ◽  
Fernando Blanco ◽  
Manuel Hernández Fernández ◽  
María A. Álvarez-Sierra ◽  
...  
Author(s):  
A. V. Gaboutchian ◽  
V. A. Knyaz ◽  
E. N. Maschenko ◽  
D. V. Korost ◽  
A. A. Kudaev

Abstract. Findings of teeth play a significant role in palaeoanthropology. And excavations in Vietnamese LangTrank cave serve as a vivid example and evidence of this statement. Teeth constitute the majority of the paleontological material dated to Middle and Late Pleistocene periods. This is to some extent the result of dietary preferences of porcupines as these rodents include in their diets bones of animals however avoiding extremely hard coronal parts of teeth. Under such circumstances teeth serve a key to taxonomic differentiation of findings as genetic analysis is often hindered by a lack of preserved DNA at such dating of material. However morphological analysis is difficult in some cases either, as teeth can be worn out or broken. In that case enamel thickness measurements become an effective study instrument as this feature varies between species. In the current study two teeth with clear signs of expressed dental wear, presumably upper fourth premolars of wild boar required more detailed analysis. Thus they were reconstructed after micro-computed tomography scanning similarly to other upper teeth picked for comparison: orang-utan tooth from the same location and two teeth from the Upper Palaeolithic Sunghir (they have been scanned earlier). This study required new approaches to image processing and measurement methodology due to marked attrition of the samples. The workflow and results of enamel thickness assessments which facilitated taxonomical differentiation of the findings are presented in the article.


2020 ◽  
Vol 45 (1) ◽  
pp. 75-84
Author(s):  
Llorenç Sáez ◽  
Javier López-Alvarado ◽  
Pere Fraga ◽  
Regina Berjano ◽  
M. Ángeles Ortiz ◽  
...  

Abstract—Two new diploid species, Aira minoricensis and Aira hercynica, are described and illustrated, along with chromosome counts, risk assessment, distribution and habitat, phenology, and comparisons with morphologically similar species. A comparative table and a key for the species of Aira for the Iberian Peninsula and the Balearic Islands are provided to assist in the identification of these overlooked species, and their relationships to other taxa are discussed.


2005 ◽  
Vol 30 ◽  
pp. 176
Author(s):  
Diego Moreno ◽  
Julio De la Rosa ◽  
Pedro Sánchez Castillo ◽  
Antonio Flores-Moya

A new record of Phyllariopsis purpurascens (C. Agardh) Henry et South from AlmeríaPalabras clave. Phyllariopsis, corología, Península Ibérica.Key words. Phyllariopsis, geographical distribution, Iberian Peninsula.


2012 ◽  
Vol 37 ◽  
pp. 179-184
Author(s):  
José Luis Fernández Alonso

Epilobium ciliatum Rafin. (Onagraceae), a new adventive species potentially invasive in the Iberian Peninsula Palabras clave. Epilobium ciliatum, especies adventicias, Flora vascular, Onagraceae, Península Ibérica. Key words. Epilobium ciliatum, Iberian Peninsula, adventive species, Onagraceae, vascular flora


2012 ◽  
Vol 37 ◽  
pp. 5-32 ◽  
Author(s):  
Ignacio Bárbara ◽  
Pilar Díaz Tapia ◽  
César Peteiro ◽  
Estibaliz Berecibar ◽  
Viviana Peña ◽  
...  

Español.  Se dan a conocer nuevas localizaciones y datos corológicos para 98 especies (61 Rhodophyta, 22 Ochrophyta, 15 Chlorophyta) de algas bentónicas marinas recolectadas en el intermareal y submareal de más de 80 localidades de las costas atlánticas y cantábricas de la Península Ibérica. Polysiphonia devoniensis, P. fibrata y Zonaria tournefortii son novedad para Portugal y 5 especies (Bonnemaisonia hamifera, Calosiphonia vermicularis, P. devoniensis, Hincksia intermedia y Derbesia marina stadium Halicystis ovalis) son nuevas citas para Galicia. Paralelamente, se aportan 101 primeras citas provinciales (2 Guipúzcoa, 1 Vizcaya, 8 Cantabria, 5 Asturias, 7 Lugo, 1 A Coruña, 8 Pontevedra, 1 Beira litoral, 15 Estremadura, 20 Alentejo, 25 Algarve y 8 Cádiz) y, además, se dan a conocer 108 segundas citas provinciales. Aunque la flora bentónica marina del Atlántico Peninsular ha sido objeto de numerosos estudios, estos nuevos hallazgos corológicos ponen en evidencia que todavía son necesarios más estudios florísticos en estas costas.English.  In this work, we provide new records and geographical distribution data for 98 seaweeds (61 Rhodophyta, 22 Ochrophyta, 15 Chlorophyta) inhabiting more than 80 sites (intertidal and subtidal) of the Atlantic Iberian Peninsula. Polysiphonia devoniensis, P. fibrata y Zonaria tournefortii are new records for Portugal and 5 species (Bonnemaisonia hamifera, Calosiphonia vermicularis, P. devoniensis, Hincksia intermedia and Derbesia marina stadium Halicystis ovalis) are new records for Galicia. Moreover, 101 new records are reported for the first time in the studied provinces (2 Guipúzcoa, 1 Vizcaya, 8 Cantabria, 5 Asturias, 7 Lugo, 1 A Coruña, 8 Pontevedra, 1 Beira litoral, 15 Estremadura, 20 Alentejo, 25 Algarve y 8 Cádiz) and 108 for the second time. Although the Atlantic marine algae of the Iberian Peninsula are well studied, these new findings show that further floristic studies are necessary to complete our knowledge of the natural heritage of this region.


2012 ◽  
Vol 37 ◽  
pp. 233-234
Author(s):  
Felipe Muñoz Secilla ◽  
Juan Antonio García Rojas ◽  
Juan Antonio Devesa

Centaurea sulphurea Willd. (Asteraceae), a novelty for the Western Andalusian flora Palabras clave. Centaurea, Asteraceae, corología, Cádiz, Andalucía Occidental, Península Ibérica.Key words: Centaurea, Asteraceae, chorology, Cadiz, Western Andalusia, Iberian Peninsula.


2013 ◽  
Vol 38 ◽  
pp. 262-263
Author(s):  
Itziar Arnelas Seco ◽  
Juan Antonio Devesa Alcaraz

Error correction of Centaurea corcubionensis M. Laínz (Acta Bot. Malacitana 37: 53 and 69, 2012) Palabras clave. Centaurea, Asteraceae, corología, Península Ibérica. Key words: Centaurea, Asteraceae, chorology, Iberian Peninsula


2013 ◽  
Vol 38 ◽  
pp. 229-231
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.


2013 ◽  
Vol 38 ◽  
pp. 231-240 ◽  
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.


Sign in / Sign up

Export Citation Format

Share Document