Abstract
AbstractThe Cretaceous chaetetid sponge Acanthochaetetes huauclillensis Sánchez-Beristain and García-Barrera is reported for the first time from the Aptian–Cenomanian Khalsi Formation, Ladakh Himalaya, India. Its low- to high-domical growth form could suggest an adaptation to either an environment with constant sedimentation rates, or to an irregular substrate. However, these growth forms also may indicate an absence of important environmental/sedimentological changes during the lifespan of the sponges. In addition, the growth form of this species suggests a calm, non-turbulent, reef-like microenvironment. Along with the other faunal assemblages, such as the rudists, corals, and the gastropod Nerinea, A. huauclillensis indicates a tropical to subtropical shallow marine carbonate platform setting. This new finding extends its stratigraphic range from the upper Hauterivian to the Aptian–Cenomanian interval in the eastern Tethyan realm.
Publisher
Cambridge University Press (CUP)
Reference68 articles.
1. Die Kreidebildungen von Texas und ihre organischen Einschlüsse / von Dr. Ferdinand Roemer.
2. Les series détritiques du bassin de l'Indus au Ladakh, nouvelles données stratigraphiques et structurales;Van Haver;Rivista Italiana di Paleontologia e Stratigrafia,1984
3. Cretaceous, Tertiary, and recent corals, a sponge, and an alga from Venezuela;Wells;Journal of Paleontology,1944
4. Architecture of Carbonate Platforms: A Response to Hydrodynamics and Evolving Ecology
5. The first report of “chaetetids” from the Cretaceous of North America and their palaeoecological implications;Sánchez-Beristain;Revista Mexicana de Ciencias Geológicas,2012
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献