FIRST RECORD OF THE BRYOZOA Stomatopora aff. cunningtoni (ORDER: CYCLOSTOMATA, FAMILY: STOMATOPORIDAE) IN THE LOWER CRETACEOUS OF COLOMBIA
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Universidad Industrial de Santander
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Se reporta por primera vez el género Stomatopora Bronn 1825 (Bryozoa: Cyclostomata) en la Formación Rosa Blanca del Cretácico inferior de Colombia. El material estudiado corresponde con dos conchas del braquiópodo Sellithyris sella sobre las cuales se encontraron las colonias de Stomatopora. Los zoecios presentan dos tipos de crecimiento, en penachos y en pseudopolígonos que asemejan la especie Colombiana con la especie jurásica Stomatopora (Proboscina) cunningtoni. Este registro muestra la amplia distribución geográfica del género Stomatopora durante el periodo Cretácico y constituye probablemente el primer reporte para el Cretácico de Sur América.
Palabras clave: Bryozoa , Formación Rosa Blanca, Sellithyris sella, Zapatoca.
Keywords: Bryozoa , Rosa Blanca Formation, Sellithyris sella, Zapatoca.
For the first time, the genus Stomatopora Bronn 1825 (Bryozoa: Cyclostomata) is reported in the Rosa Blanca Formation from the lower Cretaceous of Colombia. The studied material corresponds to two brachiopod shells of Sellithyris sella species on which Stomatopora colonies were found. Zooecia present two types of growth, tufts and pseudopolygons, that make the Colombian species look like Stomatopora (Proboscina) cunningtoni from the Jurassic. This record shows the wide geographic distribution of the Stomatopora genus during the Cretaceous period, and it is probably the first report for the Cretaceous of South America.
For the first time, the genus Stomatopora Bronn 1825 (Bryozoa: Cyclostomata) is reported in the Rosa Blanca Formation from the lower Cretaceous of Colombia. The studied material corresponds to two brachiopod shells of Sellithyris sella species on which Stomatopora colonies were found. Zooecia present two types of growth, tufts and pseudopolygons, that make the Colombian species look like Stomatopora (Proboscina) cunningtoni from the Jurassic. This record shows the wide geographic distribution of the Stomatopora genus during the Cretaceous period, and it is probably the first report for the Cretaceous of South America.
Keywords
Bryozoa, Rosa Blanca Formation, Sellithyris sella, Zapatoca, Bryozoa, Formación Rosa Blanca, Sellithyris sella, Zapatoca