New record of Pseudocidaris sp. (Echinoidea:Hemicidaridae) of lower Cretaceous (Valanginian-Hauterivian) from Zapatoca, (Santander Colombia).
In this study it is reported and described a regular echinoderm of Pseudocidaris genus in the Rosablanca Formation of Lower Cretaceous at the municipality of Zapatoca (Santander, Colombia). The species shows little sinuosity in the ambulacra and a dyciclic apical disc. An exploratory phylogenetic an...
- Autores:
- Tipo de recurso:
- http://purl.org/coar/resource_type/c_6579
- Fecha de publicación:
- 2015
- Institución:
- Universidad Pedagógica y Tecnológica de Colombia
- Repositorio:
- RiUPTC: Repositorio Institucional UPTC
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.uptc.edu.co:001/12254
- Acceso en línea:
- https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/4258
https://repositorio.uptc.edu.co/handle/001/12254
- Palabra clave:
- fossil
rosablanca formation
regular urchin
sea urchin
erizo de mar
erizo regular
formación rosablanca
fósil
- Rights
- License
- Derechos de autor 2015 Ingeniería Investigación y Desarrollo
| Summary: | In this study it is reported and described a regular echinoderm of Pseudocidaris genus in the Rosablanca Formation of Lower Cretaceous at the municipality of Zapatoca (Santander, Colombia). The species shows little sinuosity in the ambulacra and a dyciclic apical disc. An exploratory phylogenetic analysis showed that the lineage of the Zapatoca species was originated in the Callovian with P. Romani and that it is related with P. lusitanica (Oxfordian) and P. clunifera ( Barremian-Aptian) |
|---|