@article{DiatomBase:SourceID:268707, author = {Quekett, E.J.}, journal = {The London Physiological Journal}, issue = {5}, pages = {140-147}, title = {Observations on the species of fossil animalcules discovered at Petersburgh in Virginia.}, url = {https://diatombase.org/aphia.php?p=sourcedetails&id=268707}, volume = {1}, year = {1844} }