Research Paper
Palaeoecology and palaeobiogeographic relationships of Lower Devonian bryozoans from the Guadámez and Peñón Cortado Sections of Sierra Morena (SW Spain)
ANDREJ ERNST
Institut für Geologie, Universität Hamburg, Bundesstr. 55, 20146 Hamburg, Germany; Andrej.Ernst@uni-hamburg.de
Corresponding author
SERGIO RODRÍGUEZ
Departamento de Geodinámica, Estratigrafía y Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense, José Antonio Novais, 12, 28040 Madrid, Spain; sergrodr@ucm.es
Instituto de Geociencias (CSIC-UCM), c/ Severo Ochoa 7, Ciudad Universitaria, E-28040 Madrid, Spain.
ABSTRACT
Bryozoan fauna from the Lower Devonian (Pragian–Emsian) deposits of the Ossa-Morena Zone (SW Spain) comprises twenty-eight species: one cyclostome, two cystoporates, sixteen trepostomes, five cryptostomes, and four fenestrates. Three new genera with one new species, respectively, are described: cyclostome Diploclemella serenensis n. gen. n. sp., trepostome Cordobella tenuis n. gen. n. sp., and cryptostome (rhabdomesine) Serenella dubia n. gen. n. sp. Three trepostome species are new: Leptotrypa parva n. sp., L. modesta n. sp., and Boardmanella spinigera n. sp. Ten species are described in open nomenclature. The studied bryozoan fauna shows high morphological and taxonomical diversity, comprising mostly species of moderate size. The assemblage is clearly dominated by branched ramose and encrusting growth forms. The studied bryozoan fauna shows some distinct palaeobiogeographic relations to the bryozoans from the Lower Devonian of NW Spain, Morocco, and Czech Republic.
Key words: Bryozoa, taxonomy, palaeobiogeography, Lower Devonian, SW Spain.
How to cite: Ernst, A., & Rodríguez.S. 2023. Palaeoecology and palaeobiogeographic relationships of Lower Devonian bryozoans from the Guadámez and Peñón Cortado Sections of Sierra Morena (SW Spain). Spanish Journal of Palaeontology, 38, 173-220.
Received 22 March 2023, Accepted 3 May 2023, Published online 22 May 2023
https://doi.org/10.7203/sjp.26580
