Henry Ogg Forbes

Name: A Hand-book to the Primates — Extinct Lemuroidea
Author: Henry Ogg Forbes

A Hand-book to the Primates — Extinct Lemuroidea (1894)

Summary

“A Hand-book to the Primates — Extinct Lemuroidea”, published in 1894, is a work by Henry Ogg Forbes. It explores elements such as molars, internal cusp and Lemurs.

Quotes from A Hand-book to the Primates — Extinct Lemuroidea (Henry Ogg Forbes)

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ Adapis Parisiensis (with the synonyms of Aphelotherium duvernoyi, Gervais, and Palæolemur betillei, Delfortrie) is one of the best known, and its remains have been found in Upper Eocene strata at Egerkingen, in Switzerland, at Sainte Néboule de Béduer, and in the Paris Gypsum, in France, as well as in England. It "more nearly resembles the Indo-African Lemurs, and not those of the island of Madagascar, or of the extreme east, having no near relationship with the Tarsius, the Aye-Aye, or the Indris, and not much with the true Lemurs." ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ Two other insufficiently characterised genera, both considered to be primitive Lemuroids, are Plesiadapis, Gervais, containing the species P. remensis, P. gervaisi, P. tournesarti, and P. daubrei, from the Lower Eocene strata of Rheims, which have five-cusped lower molars, and enlarged upper and lower incisors; and Protoadapis, Lemoine, with one or two high front cusps, and a low heel to its three pre-molars; the anterior molars with two pairs of opposite cusps, the posterior molar with a fifth cusp on the hind border. ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ Of the upper pre-molars, the median and posterior have an internal cusp; and the molars have two outer and two inner cusps with two small intermediate tubercles. There are six species known, from the Wasatch and Bridger beds of Wyoming and New Mexico, of which H. acolytus is distinguished by having the heel of the anterior and median lower molars without an inner hind cusp. Professor Cope remarks that though the species of this genus are not numerous, individuals of some of them are exceedingly common in the Eocene beds of Wyoming. ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ From the Eocene of Switzerland comes A. lemuroides. Adapis magna (Filhol) is larger than the preceding species, has a larger face, and a greater constriction between the cerebral and facial regions of the skull. It has been found in the phosphatic deposits at Raynal, in France. Adapis angustidens (Filhol) , from the Quercy Phosphates of France, is distinguished by the structure of its molars, and by the great size of its two anterior pre-molars. A. tenebrosus (Leidy) has a large lower canine. A. minor (Filhol) is an additional species.
GENUS TOMITHERIUM.
Tomitherium, Cope, Vert. ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ The external upper incisor is small and set close to the small canine; the pre-molars have each a large external and a smaller internal cusp; the true molars are wide and have one internal and two external cusps. In the lower jaw the two anterior molars are four-cusped, with a transverse ridge between the anterior pair, and an oblique ridge between the hind inner, and the front outer, cusp; the posterior is three-cusped and has a heel. The orbits are enclosed, as in typical Lemurs. ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ The whole skull, however, is more depressed than in the slow Lemurs and Galagos; the orbits are smaller, the brain cavity relatively smaller and more constricted behind the orbits, and the muscular ridges more developed."... The lower jaw is deep and stout. The posterior upper pre-molar is very similar to a true molar. ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ Many of these extinct Lemuroids so combine the characters of the Insectivora and the Ungulata (or hoofed animals) , with those of their own Sub-order, that it is often extremely difficult, even impossible, sometimes, to determine to which Order they really belong, owing to a blending of characters due to their common origin. ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ This genus is distinguished from all other Lemurs by "the angle of the mandible being produced into a large hook-like flange." (Flower and Lydekker.) The orbits are large, indicating a nocturnal animal; the inter-orbital space is wide, and distinguishes it from Loris. The dental formula is I 2/1, C 1/1, P 3/3, M 3/3. The canine teeth are not prominent; the anterior lower pre-molar is only slightly developed; a gap separates the anterior and the median upper pre-molars.
This genus is represented by five species. ”

[↩︎]

Source: Wikisource

Henry Ogg Forbes, A Hand-book to the Primates — Extinct Lemuroidea (1894)

“ It has ... a number of resemblances to Tarsius, which is, perhaps, its nearest ally among the Lemurs, although that genus has three pre-molars.... There is no doubt but that the genus Anaptomorphus is the most Simian Lemur yet discovered...." (Cope.)
The species included in this genus are A. æmulus (Cope) , which did not exceed the size of a Marmoset or a Red Squirrel, and had short erect incisors; A. homunculus (Cope) , a species founded on a cranium without a lower jaw, with the orbits not so large as in Tarsius, and the skull wide behind the eyes. ”

Henry Ogg Forbes

Summary

Quotes from A Hand-book to the Primates — Extinct Lemuroidea (Henry Ogg Forbes)

Common terms

Similar works

Get perspective with Kwize: daily news enlightened by great literature