Source Alouatta mauroi (Paleobiology Database)
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Alouatta nigerrima
Source Black howler (Wikipedia)
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Ateles fusciceps
Source Bolivian red howler (Wikipedia)
Source Atelidae (Wikipedia)
Source Atelidae (Wikipedia)
Source Atelidae (Wikipedia)
Source Atelidae (Wikipedia)
Source Howler Monkey (Wikipedia)
Source Colombian red howler (Wikipedia)
Source Colombian woolly monkey (Wikidata)
Source Atelidae (Wikipedia)
Source Geoffroy's spider monkey (Wikipedia)
Source Atelidae (Wikipedia)
Source Global Biodiversity Information Facility: GBIF species record for Alouatta macconnelli
Source Howler Monkey (Wikipedia)
Source Mantled howler (Wikipedia)
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Alouatta ululata
Source Atelidae (Wikipedia)
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Brachyteles hypoxanthus
Source Atelidae (Wikipedia)
Source Atelidae (Wikipedia)
Source Atelidae (Wikipedia)
Source Global Biodiversity Information Facility: GBIF species record for Alouatta puruensis
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Ateles paniscus
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Alouatta belzebul
Source Animal Diversity Web: Lagothrix lagotricha (Animal Diversity Web)
Source Atelidae (Wikipedia)
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Brachyteles arachnoides
Source Atelidae (Wikipedia)
Source Atelidae (Wikipedia)
Source Global Biodiversity Information Facility: GBIF species record for Alouatta arctoidea
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Ateles belzebuth
Source GBIF (Global Biodiversity Information Facility): GBIF species record for Ateles marginatus
Source Atelidae (Wikipedia)
Source Yucatán black howler (Wikipedia)