Fossil Vertebrate Database from Cova des Pas de Vallgornera (Llucmajor, Mallorca)

Записи данных

Данные этого occurrence ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 1 481 записей.

Данный экземпляр IPT архивирует данные и таким образом служит хранилищем данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. В таблице версий перечислены другие версии ресурса, которые были доступны публично, что позволяет отслеживать изменения, внесенные в ресурс с течением времени.

Версии

В таблице ниже указаны только опубликованные версии ресурса, которые доступны для свободного скачивания.

Как оформить ссылку

Исследователи должны дать ссылку на эту работу следующим образом:

Díaz A., Bover P., Alcover J.A. (2014) Fossil Vertebrate Database from Cova des Pas de Vallgornera (Llucmajor, Mallorca). International Journal of Speleology.

Права

Исследователи должны соблюдать следующие права:

Публикующей организацией и владельцем прав на данную работу является Instituto Mediterráneo de Estudios Avanzados (CSIC). Эта работа находится под лицензией Creative Commons Attribution (CC-BY 4.0).

Регистрация в GBIF

Этот ресурс не был зарегистрирован в GBIF

Ключевые слова

Fossil vertebrates; Cova des Pas de Vallgornera; Myotragus; Myotragus aff. kopperi; Nesiotites aff. ponsi; Hypnomys onicensis; Rhinolophus aff. mehelyi; Athene vallgornerensis; Discoglossus sp.; Podarcis sp.; Specimen

Контакты

Географический охват

Cova des Pas de Vallgornera is an extensive maze cave (more than 70 km) located on the south coast of Mallorca (Balearic Islands). Coordinates of the CPV entrance: 39°22′0″N, 2°52′25″E, Datum: WGS84. It is considered one of the 30 longest caves in the world. It was discovered in 1968 in the course of a drilling carried out for the construction of a cesspit. Cova des Pas de Vallgornera is the longest karstic system currently known in the Balearics. The fossiliferous deposit is located at the end of a passage known as Galeria del Tragus and Sala del Col•lapse. For a more extensive description see Merino et al. (2011) and Bover et al. (in press: 2014). The cave is protected by the Balearic Conselleria de Medi Ambient, the Ministry of Environment of the Government of the Balearic Islands. It was declared Site of Community Importance within the Natura 2000 Network (European Council Directive 92/43/EEC, no. ES5310049). For a detailed description of the cave, see Merino et al. (2008, 2011).

Таксономический охват

Most of the taxa from Cova des Pas de Vallgornera are Mammalia (97.1% of the catalogued items) followed by Aves (1.9%), Reptilia (0.8%) and Amphibia (0.2%). It is worth mentioning here that the data set contains the type material of an extinct species of little owl from the Early Pleistocene of Mallorca (Athene vallgornerensis). The collection includes 23 taxa and 97.5% of the specimens are identified at species level. Myotragus aff. kopperi is the most represented species in the database (897 catalogued items). The preservation of material is very good.

Временной охват

Данные проекта

Описание отсутсвует

Исполнители проекта:

Методы сбора

The excavation campaign was carried out during 28-30 May 2010. All the fossil fauna was labelled and protected. The material was mainly collected by hand and situated in the topographical survey indicating the number of the closest established section. Material partially covered by flowstone was extracted from the deposit through mechanical methods. Associated skeletons have been individualized.

Описание этапа методики:

1. After collection, the material was packed in protected containers that were carried outside the cave by a group of volunteers. The fossils have been identified by taxonomists of the IMEDEA (Pere Bover, Carmen Guerra and Josep Antoni Alcover), the University of the Basque Country - Euskal Herriko Unibertsitatea (Juan Rofes) and the Universidad de Zaragoza (Glória Cuenca-Bescós). The skeletal remains of Myotragus from CPV were generally in good preservation state. Most of bones are complete. From a conservation and restoration point of view, major issues are related to sediment presence. This sediment, which partially or fully covers some bones, can be present as: 1) a thin layer of calcium carbonate (less than 5mm thick), or 2) as thick concretions, covering both the bone and the surrounding soft or hard clay. There is a number of cracked and broken bones. Some of these bones have been consolidated with acrylic resin (Paraloid B-67), and attached with nitrocellulosic adhesive (Imedio). Some bones (like humeri and femora) have a more fragile consistency (with some powdering traces in both fracture plans and spongy tissue), while other bones, like the jaws and metapodials, are very well preserved (they are very compact and without powdering traces). The removal of the remains of sediment on the bones from CPV was mainly performed mechanically. Depending on the hardness and volume of sediment, vibroincisor, knife, punch and metal or wood poles were used. However, in many cases, the sediment was previously softened with distilled water and/or alcohol applied with brush or swab. Only the parts of the bones with powder damage (especially in areas with cracks and fracture planes) were consolidated. In these cases an acrylic resin (Paraloid B-67) was used, diluted 5-10% in acetone, which was applied with a brush or by dripping. Both cellulose nitrate (Imedio) and acrylic resin (Paraloid B-67) were used to hold the fragments. When the fragments to be glued were small or lightweight only Paraloid B-67 was used. A professional conservator (B.Font) performed all the conservation work. All the material was numbered to be included at the IMEDEA Vertebrate Collection, and it is currently preserved in plastic bags, plastic boxes and cardboard boxes. All the material has been digitalized and included in the IMEDEA vertebrate Collection. To guarantee the quality of the database in the GBIF network, the Cova des Pas de Vallgornera dataset has been standardized following the standard Darwin Core version 1.2 for information exchange of natural history collections, and it has been later analysed to correct any possible error with the Darwin Test (an application to test and check data in the Darwin Core format, developed and supported by the Coordination Unit of the Spanish GBIF national node http://www.gbif.es/darwin_test/Darwin_Test.php). Among the checks performed, errors of omission, typographic, convention and consistency were analysed.

Данные коллекции

Библиографические ссылки

1. Bover P.,Valenzuela A., Guerra C., Rofes J., Alcover J.A., Ginés J., Fornós J.J., Cuenca-Bescós G. & Merino A. (submitteD) The Cova des Pas de Vallgornera (Llucmajor, Mallorca): an singular deposit containing an extraordinarily well preserved Early Pleistocene vertebrate fauna. International Journal of Speleology.
2. Guerra C., Bover P. & Alcover, J.A. (2012) A new species of extinct little owl from the Pleistocene of Mallorca (Balearic Islands). Journal of Ornithology, 152: 347-354. DOI 10.1007/s10336-011-0749-3
3. Merino A., Mulet A., Mulet G., Croix A. & Gràcia F. (2008) La cova des Pas de Vallgornera (Llucmajor, Mallorca): alcanza los 55 kilómetros de desarrollo topográfico. Endins, 32: 33-42.
4. Merino A., Mulet A., Mulet G., Croix A., Kristofersson A., Gràcia F., Ginés J. & Fornós J.J. (2011) La cova des Pas de Vallgornera (Llucmajor, Mallorca). La cavitat de major desenvolupament de les Illes Balears. Endins, 35/Monografies de la Societat d’Història Natural de les Balears, 17: 147-164.
5. Jordana X, Marín-Moratalla N, Moncunill-Solé B, Bover P, Alcover JA, et al. (2013) First Fossil Evidence for the Advance of Replacement Teeth Coupled with Life History Evolution along an Anagenetic Mammalian Lineage. PLoS ONE 8(7): e70743. doi:10.1371/journal.pone.0070743

Дополнительные метаданные