Aegyptopithecus: basal to monkeys and baboons
Between lemurs and Old World monkeys
the large reptile tree (LRT, 2336 taxa) nests Parapithecus and Aegyptopithecus (Fig 1), both from Eocene Egypt.
Figure 1. Extinct Parapithecus, extinct Aegyptopithecus and extant Mandrill skulls to scale.
” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/mandrill_male_skull588.jpg?w=152″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/mandrill_male_skull588.jpg?w=520″ class=”size-full wp-image-91588″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/mandrill_male_skull588.jpg” alt=”Figure 1. Extinct Parapithecus, extinct Aegyptopithecus and extant Mandrill skulls to scale. ” width=”584″ height=”1150″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/mandrill_male_skull588.jpg?w=584&h=1150 584w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/mandrill_male_skull588.jpg?w=76&h=150 76w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/mandrill_male_skull588.jpg?w=152&h=300 152w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/mandrill_male_skull588.jpg 588w” sizes=”(max-width: 584px) 100vw, 584px” />
Figure 1. Extinct Parapithecus, extinct Aegyptopithecus and extant Mandrill skulls to scale.
An extant descendant of Aegyptopithecus
is Mandrill, the mandrill (Fig 1), also from Africa, famous for its sexual dimorphism, a trait also appearing in Aegyptopithecus (Fig 2).
Figure 2. Sexual dimorphism in extinct Aegyptopithecus.
” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/aegyptopithecus-m-f588.jpg?w=287″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/aegyptopithecus-m-f588.jpg?w=584″ class=”size-full wp-image-91591″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/aegyptopithecus-m-f588.jpg” alt=”Figure 2. Sexual dimorphism in extinct Aegyptopithecus. ” width=”584″ height=”610″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/aegyptopithecus-m-f588.jpg?w=584&h=610 584w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/aegyptopithecus-m-f588.jpg?w=144&h=150 144w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/aegyptopithecus-m-f588.jpg?w=287&h=300 287w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/aegyptopithecus-m-f588.jpg 588w” sizes=”(max-width: 584px) 100vw, 584px” />
Figure 2. Sexual dimorphism in extinct Aegyptopithecus.
Parapithecus grangeri
(Schlosser 1910, Simons 1986, Simons 2001, Eocene-Oligocene 35mya) nesst with Alouatta, the howler monkey, in the LRT. A post-orbital plate and three molars are present. Lower incisors are absent. Note the perforated lateral jugal here and in Aloutta, convergent with Indri.
Aegyptopithecus zeuxis
(Simons 1965, 1967, 1987; YPM VP 024189; Oligocene, 33 mya) was preceded by Smilodectes and the New World monkeys. It nests at the base of the Old World monkeys, like Macaca, more specifically at the base of the tarsiers, like Tarsius.
Mandrill sphinx
(Linneaus 1758) is tradionally related to the monkey Cercocebus according to genomic studies. Here extant Mandrill nests with Papio, the baboon, closer to lemurs than to monkeys.
References
Linnaeus C 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.
Schlosser M 1911. Beitriige zur Kenntnis der Oligoziinen Landsiiugetiere aus dem Fayum. Beitr. Palaeontol. Geol. Oesterr.-Ung. 24: 51-167.
Simons EL 1995. Crania of Apidium: Primitive Anthropoidean (Primates, Parapithecidae) from the Egyptian Oligocene. American Museum Novitates 3124:10pp.
Simons EL 2001. The cranium of Parapithecus grangeri, an Egyptian Oligocene anthropoidean primate. Proceedings of the National Academy of Sciences of the United States of America. 98 (14): 7892–7897.
Simons EL 1965. New fossil apes from Egypt and the initial differentiation of Hominoidea. Nature 205:135–139.
Simons EL 1967. The earliest apes. Scientific American 217(6):28-35.
Simons EL 1987. New faces of Aegyptopithecus from the Oligocene of Egypt: Journal of Human Evolution 16:273-289.
wiki/Aegyptopithecus
wiki/Parapithecus
wiki/Mandrill
Source: https://pterosaurheresies.wordpress.com/2025/02/09/aegyptopithecus-basal-to-monkeys-and-baboons/
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world. Anyone can join. Anyone can contribute. Anyone can become informed about their world. "United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
LION'S MANE PRODUCT
Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules
Mushrooms are having a moment. One fabulous fungus in particular, lion’s mane, may help improve memory, depression and anxiety symptoms. They are also an excellent source of nutrients that show promise as a therapy for dementia, and other neurodegenerative diseases. If you’re living with anxiety or depression, you may be curious about all the therapy options out there — including the natural ones.Our Lion’s Mane WHOLE MIND Nootropic Blend has been formulated to utilize the potency of Lion’s mane but also include the benefits of four other Highly Beneficial Mushrooms. Synergistically, they work together to Build your health through improving cognitive function and immunity regardless of your age. Our Nootropic not only improves your Cognitive Function and Activates your Immune System, but it benefits growth of Essential Gut Flora, further enhancing your Vitality.
Our Formula includes: Lion’s Mane Mushrooms which Increase Brain Power through nerve growth, lessen anxiety, reduce depression, and improve concentration. Its an excellent adaptogen, promotes sleep and improves immunity. Shiitake Mushrooms which Fight cancer cells and infectious disease, boost the immune system, promotes brain function, and serves as a source of B vitamins. Maitake Mushrooms which regulate blood sugar levels of diabetics, reduce hypertension and boosts the immune system. Reishi Mushrooms which Fight inflammation, liver disease, fatigue, tumor growth and cancer. They Improve skin disorders and soothes digestive problems, stomach ulcers and leaky gut syndrome. Chaga Mushrooms which have anti-aging effects, boost immune function, improve stamina and athletic performance, even act as a natural aphrodisiac, fighting diabetes and improving liver function. Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules Today. Be 100% Satisfied or Receive a Full Money Back Guarantee. Order Yours Today by Following This Link.
| Online: | |
| Visits: | 1,674,192,052 |
| Stories: | 8,344,529 |
Whistler Blowers, Insiders
