Adapiformes

Source: Wikipedia, the free encyclopedia.
For an explanation of very similar terms, see Lemuriformes and Strepsirrhini.

Adapiformes
Temporal range: 56.0–11.1 
Ma
 Eocene – Late Miocene[1]
Notharctus tenebrosus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Strepsirrhini
Infraorder: †Adapiformes
Hoffstetter, 1977
Superfamily: †
Adapoidea
Trouessart
, 1879
Families
Synonyms

Strepsirrhini

Adapiformes is a group of early

northern Africa and tropical Asia. They existed from the Eocene to the Miocene epoch. Some adapiforms resembled living lemurs
.

Adapiforms are known from the fossil record only, and it is unclear whether they form a

paraphyletic group. When assumed to be a clade, they are usually grouped under the "wet-nosed" taxon Strepsirrhini, which would make them more closely related to the lemurs and less so to the "dry-nosed" Haplorhini taxon that includes monkeys and apes.[4]

In 2009, Franzen and colleagues placed the newly described genus Darwinius in the "Adapoidea group of early primates representative of early haplorhine diversification" so that, according to these authors, the adapiforms would not be within the Strepsirrhini lineage as hitherto assumed but qualify as a stem "missing link" between Strepsirrhini and Haplorrhini.[5] However, subsequent analysis on the Darwinius fossil by Erik Seiffert and colleagues rejects this "missing link" idea, classifying Darwinius and other adapiforms within the Strepsirrhini.[6]

Boyer et al. found that the crown Strepsirrhini likely emerged deep in the Adapiformes tree, possibly as sister of a group which include e.g. Aframonius and Notharctidae.[7] The Adapiformes are thus found not to be literally extinct (in the sense of having no living descendants), and becomes a junior synonym to the Strepsirrhini. Below is a simplified cladogram.

Primates

Haplorrhini

Strepsirrhini/

Donrussellia provincialis

  grade of extinct adapiform taxa

Crown Strepsirrhini

Adapiformes

A 2018 study puts Donrussellia as sister to crown primates.[8]

Classification

See also: List of fossil primates

Adapiforms belong to the infraorder Adapiformes, which contains a single superfamily, Adapoidea.[9] The group also is sometimes treated as a superfamily (Adapoidea) alongside the other living strepsirrhine superfamilies, Lemuroidea (lemurs) and Lorisoidea (lorises and galagos).[10]

Rose (1995) suggests that early adapiformes and

age.[11]

References

  1. ^ "PBDB". paleobiodb.org. Retrieved 2021-08-18.
  2. PMID 27650579
    .
  3. ^ Twenty-five little bones tell a puzzling story about early primate evolution
  4. ISBN 978-0-306-48120-8
    , p. 100
  5. PMID 19492084
    .
  6. ^ Ritter, M. (October 21, 2009). "Primate fossil called only a distant relative". Associated Press. Retrieved 2012-01-12.
  7. PMID 29935935
    .
  8. ISSN 1094-8074
    .
  9. ^ Fleagle 2013, p. 415.
  10. ^ Rose 2009, p. 286.
  11. ISBN 978-1461347002
    .

Sources

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Adapiformes&oldid=1217683438"