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Marc van Roosmalen (born 23 June 1947) is a Dutch-Brazilian primatologist. He was elected as one of the "Heroes for the Planet" by Time magazine in 2000. [ 1 ] His research has led to the identification of several new monkey species, as well as other mammals and plants, although some of these identifications are challenged. [ 2 ]
The two fly deeper into the forest to rendezvous with a boat, the Cassiquiari, on the Rio Aripuanã. Further upriver, they meet scientist Marc van Roosmalen and his team. Manatees are known to live in the vicinity, but despite searching the river and surrounding lakes, they fail to encounter the species in the wild.
In 1996, Marc van Roosmalen, the discoverer, was given a milk can by a river trader with one of these monkeys inside. He suspected it was a new species, a relative of the pygmy marmoset , but at that point was unaware of its exact origin.
Stephen Nash's titi monkey (Plecturocebus stephennashi), also known as just Nash's titi or Stephen Nash's monkey, is a species of titi monkey, a type of New World monkey, endemic to the eastern bank of the Purus River in Brazil. [1] [2] [3] It was discovered by Marc van Roosmalen in 2001 when local fishermen brought specimens to his breeding ...
It was originally described by Marc van Roosmalen et al. in 2002 as Callicebus bernhardi, with the holotype being a complete, mature skeleton, collected in November 1998. [5] It and Callicebus stephennashi were the 37th and 38th species of primates to be described since 1990, [7] and the 23rd and 24th monkeys described since that year. [8]
The giant peccary (described as Pecari maximus) was a purported fourth species of peccary, first reported to have been seen in Brazil in 2000 by Dutch naturalist Marc van Roosmalen. In 2003 German natural history filmmaker Lothar Frenz filmed a group and gathered a skull which later served as the type (INPA4272).
Roosmalen's dwarf porcupine (Coendou roosmalenorum) is a porcupine species from the New World porcupine family likely endemic to northern Brazil.Only three specimens were known at the time, and only one had a collection locality.
According to Marc van Roosmalen, the scientist who proposed it as a new species, it lives in shallow, fast-running water, and feeds on different species of aquatic plants from the Amazonian manatee, which prefers deeper, slower-moving waters and the plants found there. The dwarf manatee reportedly migrates upriver during the rainy season when ...