Bioestratigrafía de macrofósiles del Cenomaniense Superior-Turoniense Superior en el área de Santamera y Riofrío del LLano (Guadalajara, España)
- Mélani Berrocal-Casero 1
- Fernando Barroso-Barcenilla 12
- Pedro Callapez 3
- Fernando García Joral 1
- Manuel Segura 2
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1
Universidad Complutense de Madrid
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2
Universidad de Alcalá
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3
Universidade de Coimbra
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ISSN: 0214-2708
Year of publication: 2013
Volume: 26
Issue: 2
Pages: 85-106
Type: Article
More publications in: Revista de la Sociedad Geológica de España
Abstract
A biostratigraphic and systematic study on the upper Cenomanian-lower Turonian (Picofrentes Formation) outcrops of the Santamera and Riofrío del Llano area (Guadalajara, Spain) is presented. The following taxa have been identified: the brachiopod Phaseolina phaseolina (Valenciennes in Lamarck, 1819); the bivalves Chlamys cf. guerangeri (Farge in Couffon, 1936), Cerastostreon flabellatum (Goldfuss, 1833), Ilymatogyra pseudoafricana (Choffat, 1902), Rhynchostreon suborbiculatum (Lamarck, 1801), Exogyra (Costagyra) olisiponensis (Sharpe, 1850), ?Pholadomya sp., Granocardium cf. productum (Sowerby, 1832), ?Granocardium sp., Trigonarca sp., ?Proveniella sp. and Durania arnaudi (Choffat, 1891); the gastropods Harpagodes sp., Tylostoma ovatum Sharpe, 1849, Tylostoma torrubiae Sharpe, 1849, Drepanocheilus sp. and Cimolithium tenouklense (Coquand, 1862); the ammonites Vascoceras durandi (Thomas and Péron, 1889), Vascoceras kossmati Choffat, 1898, Choffaticeras (Choffaticeras) quaasi (Péron, 1904), Spathites (Jeanrogericeras) sp. and Spathites (Jeanrogericeras) cf. obliquus (Karrenberg, 1935); and the echinoids Tetragramma variolare (Brongniart, 1822), Holaster sp., Hemiaster bufo Desor, 1847, Hemiaster sp., Mecaster cf. scutiger (Forbes in Sharpe, 1849) and Mecaster palpebratus (Loriol, 1888). The sedimentary facies and the fossil assemblages identified correspond to a neritic-coastal palaeoenvironment.