Top Left: Llama - Lama glamaTop Right: Vicugna - Lama guanicoeCenter: Alpaca - Vicugna pacos (previously categorized in genus Lama)Bottom: Bactrian camel - Camelus bactrianus
The Camelids are Artiodactyla (even-toed ungulates) that first evolved in North America during the Eocene epoch (55.8 MYA - 33.9 MYA). Like horses, this group of animals evolved here for millions of years, but went extinct in North America after populations crossed the Bering land bridge. 
Unlike horses, however, the Camelids not only crossed over into Asia, but they also went south, into South America, during the Great American Exchange.
The camelids which moved south evolved into what we now know as the tribe Lamini - the llama and guanaco (genus Lama), and alpaca and vicugna (genus Vicugna). The camelids which traveled into Asia, the Middle East, and North Africa, evolved into the tribe Camelini - the Bactrian and dromedary camels (genus Camelus).
The Animal Kingdom, based on the writings of Eminent Naturalists: Vol 2. Hugh Craig, 1902.

Top Left: Llama - Lama glama
Top Right: Vicugna - Lama guanicoe
Center: Alpaca - Vicugna pacos (previously categorized in genus Lama)
Bottom: Bactrian camel - Camelus bactrianus

The Camelids are Artiodactyla (even-toed ungulates) that first evolved in North America during the Eocene epoch (55.8 MYA - 33.9 MYA). Like horses, this group of animals evolved here for millions of years, but went extinct in North America after populations crossed the Bering land bridge.

Unlike horses, however, the Camelids not only crossed over into Asia, but they also went south, into South America, during the Great American Exchange.

The camelids which moved south evolved into what we now know as the tribe Lamini - the llama and guanaco (genus Lama), and alpaca and vicugna (genus Vicugna). The camelids which traveled into Asia, the Middle East, and North Africa, evolved into the tribe Camelini - the Bactrian and dromedary camels (genus Camelus).

The Animal Kingdom, based on the writings of Eminent Naturalists: Vol 2. Hugh Craig, 1902.

273 notes

Show

  1. clove-hibiscus reblogged this from biomedicalephemera
  2. lookingleftandright reblogged this from scientificillustration and added:
    camels.
  3. ahoytonks reblogged this from ifyoureleavingleavesomething
  4. pterodactylsnotpteranodons reblogged this from scientificillustration
  5. caracamoma reblogged this from scientificillustration
  6. kamiyamazgc reblogged this from yamtai
  7. thescienceofficer reblogged this from an-airship-full-of-spiders
  8. an-airship-full-of-spiders reblogged this from lospaziobianco
  9. giardinodeisemplici reblogged this from yamtai
  10. yamtai reblogged this from scientificillustration
  11. slobyn reblogged this from scientificillustration
  12. lospaziobianco reblogged this from scientificillustration
  13. neenercorn reblogged this from cheerybeery
  14. knightinmourning reblogged this from scientificillustration
  15. cheerybeery reblogged this from scientificillustration
  16. cutiecommando reblogged this from farmingwitch
  17. ultraviolet-catastrophe reblogged this from scientificillustration
  18. magazinemilk reblogged this from scientificillustration