El patrimonio paleontológico de Ricla (Zaragoza): inventario y descripción de lugares de especial interés. Propuesta de medidas de protección y gestión
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Abstract
Se realiza un inventario de lugares paleontológicos del Jurásico de Ricla
(Zaragoza) promovido por el Departamento de Cultura del Gobierno de Aragón.
Se ha definido un total de 7 áreas que incluyen más de 200 puntos de
interés desde el Lías medio hasta el Jurásico Superior. Su contenido fósil
abarca la mayoría de grupos de invertebrados marinos, desde espongiarios
y corales hasta moluscos (bivalvos, ammonoideos), briozoos, braquiópodos
y equinodermos, así como restos de reptiles marinos. Los puntos seleccionados
presentan interés científico, didáctico por ser localidad tipo de taxones
fósiles, unidades estratigráficas, o ejemplificar algún paleontológico o estratigráfico.
Entre las amenazas y medidas de protección aconsejadas se presta
especial atención al expolio realizado por coleccionistas y comerciantes de
fósiles y a la roturación de terrenos y otras actividades sobre el territorio que
puedan propiciar la destrucción de los yacimientos
An inventory of most relevant fossil sites in the surroundings of Ricla (Zaragoza, Spain) is presented Seven areas including over 200 sites have been filed. All selected sites are relevant sections and points ranging in age from Lower to Upper Jurassic, and holding important fossil invertebrate content, most particularly sponges, corals, molluscs (ammonites, bivalves) bryozoans, brachiopods and echinoderms, and also by the record of marine reptiles. Most inventoried sites hold special scientific educational and heritage value for being type locality of fossil taxa, stratigraphic units or by exemplifying particular stratigraphic and/or paleontological processes. Among the main threatens and protective measures attention is mainly paid to the action of uncontrolled fossil traders and collectors, the destructive potential of public works and the landowners, which may foster the destruction of fossil sites as a result of allotment expansion and quarrying in areas holding special heritage value
An inventory of most relevant fossil sites in the surroundings of Ricla (Zaragoza, Spain) is presented Seven areas including over 200 sites have been filed. All selected sites are relevant sections and points ranging in age from Lower to Upper Jurassic, and holding important fossil invertebrate content, most particularly sponges, corals, molluscs (ammonites, bivalves) bryozoans, brachiopods and echinoderms, and also by the record of marine reptiles. Most inventoried sites hold special scientific educational and heritage value for being type locality of fossil taxa, stratigraphic units or by exemplifying particular stratigraphic and/or paleontological processes. Among the main threatens and protective measures attention is mainly paid to the action of uncontrolled fossil traders and collectors, the destructive potential of public works and the landowners, which may foster the destruction of fossil sites as a result of allotment expansion and quarrying in areas holding special heritage value
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