Catalog Number: CG-0035
Antiquatonia portlockiana was first described by Norwood and Pratten in 1855. The genus Antiquatonia includes eight distinct species. It has a surprisingly short age range of about 20 million years. The species has yet to be found outside of the Carboniferous Period.
When I first found this brachiopod, I wasn’t quite sure what it was. I tried using the identification plates, but nothing stuck out.
Additional Reading
- Two Specimens of Antiquatonia Portlockiana from the Pine Creek Limestone of Central Armstrong County
References
- 1855, Norwood, J.G., Pratten, H., Notice of fossils from the Carboniferous Series of the western states belonging to the genera Spirifer, Bellerophon, Pleurotomaria, Macrocheilus, Natica, and Loxonema, with descriptions of eight new characteristic species. Journal of the Academy of Natural Sciences of Philadelphia 3: pp. 71-77
- 1976, Brew, D.C., Beus, S.S., A Middle Pennsylvanian fauna from the Naco Formation near Kohl Ranch, Central Arizona. Journal of Paleontology 50, pp. 888-906