A new fossil resin with biological inclusions in Lower Cretaceous deposits from Álava (northern Spain, Basque-Cantabrian Basin)

2000 ◽  
Vol 74 (1) ◽  
pp. 158-178 ◽  
Author(s):  
Jesus Alonso ◽  
Antonio Arillo ◽  
Eduardo Barrón ◽  
J. Carmelo Corral ◽  
Joan Grimalt ◽  
...  

The occurrence of amber in Sierra de Cantabria (álava, Basque Country) has been known for more than two decades but biological inclusions have only recently been found. The existence of crustaceans (amphipods and isopods), chelicerates (acari and arachnids), 12 orders of insects, and several bird feathers are reported in this preliminary study. In addition, there are leaf remains, molluscs, and a fair number of inorganic inclusions.Pollen analysis of the clastic series indicates an age between upper Aptian—middle Albian, which allows an assignment of this stratigraphic unit to the Nograro Formation. Chemical analysis indicates that the amber has high maturity, which reflects its Cretaceous age. Chemical composition analysis also indicates an araucariacean origin, which is corroborated by pollen found within the amber deposit.This new fossil site provides information for the reconstruction of paleocommunities of arthropods and sedimentary environments in the extreme south of the Basque-Cantabrian Basin during the Lower Cretaceous, characterized by coniferous forests with an understory of vascular cryptograms. Some of the identified arthropods add to the fossil record for various groups that are poorly known or unknown for this time period. This Lagerstätte constitutes one of the most important deposits of Mesozoic amber in the world.

2000 ◽  
Vol 74 (1) ◽  
pp. 158-178 ◽  
Author(s):  
JESUS ALONSO ◽  
ANTONIO ARILLO ◽  
EDUARDO BARRÓN ◽  
J. CARMELO CORRAL ◽  
JOAN GRIMALT ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Iwona Kania-Kłosok ◽  
Wiesław Krzemiński ◽  
Antonio Arillo

AbstractFirst record of the genus Helius—long-rostrum cranefly from Maestrazgo Basin (eastern Spain, Iberian Penisula) is documented. Two new fossil species of the genus Helius are described from Cretaceous Spanish amber and compared with other species of the genus known from fossil record with particular references to these known from Cretaceous period. Helius turolensis sp. nov. is described from San Just amber (Lower Cretaceous, upper Albian) Maestrazgo Basin, eastern Spain, and Helius hispanicus sp. nov. is described from Álava amber (Lower Cretaceous, upper Albian), Basque-Cantabrian Basin, northern Spain. The specific body morphology of representatives of the genus Helius preserved in Spanish amber was discussed in relation to the environmental conditions of the Maestrazgo Basin and Basque-Cantabrian Basin in Cretaceous.


2015 ◽  
Vol 52 ◽  
pp. 292-312 ◽  
Author(s):  
Eduardo Barrón ◽  
Daniel Peyrot ◽  
Juan Pedro Rodríguez-López ◽  
Nieves Meléndez ◽  
Rafael López del Valle ◽  
...  

2020 ◽  
Vol 296 (1) ◽  
pp. 175-183
Author(s):  
Àlex Ossó ◽  
Josep Anton Moreno-Bedmar

A new species of etyid crab, Etyus tresgalloi, is recorded from outcrops of Aptian sedimentary rocks at Cuchía (Cantabria, northern Spain). The dorsal carapace of the sole specimen recovered possesses sufficient diagnostic characters such as general carapace outline and, in particular, configuration of branchial grooves, to allow it to be assigned to the Etyidae, despite the fact that it does not retain any ventral elements or appendages. This new record brings the number of brachyurans recorded from the Aptian of the Basque-Cantabrian Basin to three. Based on ammonite evidence, Etyus tresgalloi n. sp. is dated as early Aptian (Deshayesites forbesi ammonite Zone).


Geoheritage ◽  
2021 ◽  
Vol 13 (1) ◽  
Author(s):  
L. Damas Mollá ◽  
J. A. Uriarte ◽  
A. Zabaleta ◽  
A. Aranburu ◽  
F. García Garmilla ◽  
...  

2015 ◽  
Vol 27 (3) ◽  
pp. 316-327 ◽  
Author(s):  
Daniel Jurburg ◽  
Elisabeth Viles ◽  
Carmen Jaca ◽  
Martin Tanco

Purpose – Continuous improvement (CI) is regarded as a powerful approach to achieve business excellence. However, the implementation is not simple as it involves managing a considerable amount of tangible and intangible factors throughout the whole organization. The purpose of this paper is to fill the gap by presenting first-hand information about how companies really implement and organize their CI processes. Design/methodology/approach – The study was based on semi-structured interviews in ten high performing companies in the Basque Country, a region in northern Spain well known for its business quality. The objective was to analyze the state of their CI processes, putting special focus on how the organizational structure integrates with the CI processes and what are the characteristics of the corresponding measurement system. Findings – The study shows a lack of company-wide focus on CI, little written evidence of previous improvement activities, unclear improvement process owner, and poor use of adequate measurement systems to monitor CI. Practical implications – Managers should understand that is not enough to guarantee their own commitment and provide the structure, since in order to become learning organization, a different holistic approach towards the CI process must be adopted. Originality/value – While most previous work on this field have focused primarily on how to implement different techniques in order to achieve better productive performance, this study presents empirical research from a more holistic approach, assessing the characteristics affecting CI by considering strategy, structure, and the measurement system.


1996 ◽  
Vol 12 (5) ◽  
pp. 541-543 ◽  
Author(s):  
Gustavo Cilla ◽  
Emilio P�rez-Trallero ◽  
Cristina Guti�rrez ◽  
Carolina Part ◽  
Mar�a Gom�riz

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