Seiffert et al. (2010) note that Simons, the discoverer of Serapia originally placed it within the Parapithecidae, but in 2001 transferred Serapia to the Proteopithecidae, a view supported by Gunnell and Miller (2001), Beard (2002), and Seiffert et al. (2004 & 2005a).4 Kay and Williams (2013, edited by Feagle and Kay) continue to place Serapia in the parapithecidae as part of a proposed sub-family, Qatraniinae, alongside Arsinoea and Qatrania (they note these all share similar dental features to each other, but they are more primitive than other parapithecidae they also note that the similarity may be because of shared lineage rather than being closely related).5
Seiffert, Erik & Simons, Elwyn & Fleagle, John & Godinot, Marc. (2010). Paleogene Anthropoids. pages 369-392. In 'Cenozoic Mammals of Africa' (editors Lars Wardelin and William Sanders) University of California Press 6 August 2010 ISBN 978-0520257214 /wiki/ISBN_(identifier) ↩
Simons, Elwyn L; Plavcan, J Michael; Fleagle, John G (March 1999). "Canine sexual dimorphism in Egyptian Eocene anthropoid primates: Catopithecus and Proteopithecus". PNAS. 96 (5): 2559–2562. Bibcode:1999PNAS...96.2559S. doi:10.1073/pnas.96.5.2559. PMC 26824. PMID 10051682. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC26824 ↩
Simons, Elwyn L; Seiffert, Erik R (December 1999). "A Partial Skeleton of Proteopithecus sylviae (Primates, Anthropoidea): First Associated Dental and Postcranial Remains of an Eocene Anthropoidean". Comptes Rendus de l'Académie des Sciences, Série IIA. 329 (12): 921–927. Bibcode:1999CRASE.329..921S. doi:10.1016/S1251-8050(00)88506-7. https://www.researchgate.net/publication/223756435 ↩
Richard F. Kay, Blythe A Williams Anthropoid Origins: New Visions (Developments in Primatology: Progress and Prospects), Springer, 2013, ISBN 978-1461347002 page=409 /wiki/ISBN_(identifier) ↩