Oldest North American primate
نویسندگان
چکیده
منابع مشابه
Oldest North American primate.
Primates appear at or immediately after the beginning of the Eocene, in the global carbon isotope excursion (CIE) marking the Paleocene–Eocene Thermal Maximum. We presented evidence for dispersal of Teilhardina from Asia to Europe to North America in the first 25 kyr of the CIE (first 25 kyr of the Eocene; ref. 1). Beard claims to refute the direction of dispersal by reporting a new, possibly o...
متن کاملThe oldest North American primate and mammalian biogeography during the Paleocene-Eocene Thermal Maximum.
Undoubted primates first appear almost synchronously in the fossil records of Asia, Europe, and North America. This temporal pattern has complicated efforts to reconstruct the early dispersal history of primates in relation to global climate change and eustatic fluctuations in sea level. Here, I describe fossils from the Tuscahoma Formation on the Gulf Coastal Plain of Mississippi documenting a...
متن کاملEvidence for a Grooming Claw in a North American Adapiform Primate: Implications for Anthropoid Origins
Among fossil primates, the Eocene adapiforms have been suggested as the closest relatives of living anthropoids (monkeys, apes, and humans). Central to this argument is the form of the second pedal digit. Extant strepsirrhines and tarsiers possess a grooming claw on this digit, while most anthropoids have a nail. While controversial, the possible presence of a nail in certain European adapiform...
متن کاملThe face of Strigorhysis: implications of another tarsier-like, large-eyed Eocene North American tarsiiform primate.
The hypothesis that hypertrophic eyeballs were widespread among Eocene tarsiiform primates can be tested by qualitatively examining an integrated set of anatomical features involving the middle face, palate, and orbital floor that are also manifest in Tarsius. The North American anaptomorphine Strigorhysis, restudied via micro-CT, is presented as an example, one of about nine fossil tarsiiforms...
متن کاملNorth American blastomycosis.
N ORTH American blastomycosis (Gilchrist’s disease) is a granulomatous, infectious disease caused by the fungus, Blastomyces dermatitidis (Gilchrist and Stokes, 1898). The malady, in its cutaneous form, was first described by Gilchrist’ in 1894. A few years later, together with Stokes, he was able to isolate and culture the causative organism which he designated as B. dermatitibis.23 The first ...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2008
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0802296105