Missing link (human evolution) (English Wikipedia)

Appel, T. A. (1980). "Henri De Blainville and the Animal Series: A Nineteenth-Century Chain of Being". Journal of the History of Biology. 13 (2): 291–319. doi:10.1007/bf00125745. S2CID 83708471.
Klein, Richard G. (2009-09-22). "Darwin and the recent African origin of modern humans". Proceedings of the National Academy of Sciences. 106 (38): 16007–16009. Bibcode:2009PNAS..10616007K. doi:10.1073/pnas.0908719106. ISSN 0027-8424. PMC 2752521. PMID 19805251.
Wood and Richmond; Richmond, BG (2000). "Human evolution: taxonomy and paleobiology". Journal of Anatomy. 197 (Pt 1): 19–60. doi:10.1046/j.1469-7580.2000.19710019.x. PMC 1468107. PMID 10999270. p. 41: "A recent reassessment of cladistic and functional evidence concluded that there are few, if any, grounds for retaining H. habilis in Homo, and recommended that the material be transferred (or, for some, returned) to Australopithecus (Wood & Collard, 1999)."

grandview.edu

Snyder, S. "The Great Chain of Being". Archived from the original on 2017-07-28.

Klein, Richard G. (2009-09-22). "Darwin and the recent African origin of modern humans". Proceedings of the National Academy of Sciences. 106 (38): 16007–16009. Bibcode:2009PNAS..10616007K. doi:10.1073/pnas.0908719106. ISSN 0027-8424. PMC 2752521. PMID 19805251.
Wood and Richmond; Richmond, BG (2000). "Human evolution: taxonomy and paleobiology". Journal of Anatomy. 197 (Pt 1): 19–60. doi:10.1046/j.1469-7580.2000.19710019.x. PMC 1468107. PMID 10999270. p. 41: "A recent reassessment of cladistic and functional evidence concluded that there are few, if any, grounds for retaining H. habilis in Homo, and recommended that the material be transferred (or, for some, returned) to Australopithecus (Wood & Collard, 1999)."

Klein, Richard G. (2009-09-22). "Darwin and the recent African origin of modern humans". Proceedings of the National Academy of Sciences. 106 (38): 16007–16009. Bibcode:2009PNAS..10616007K. doi:10.1073/pnas.0908719106. ISSN 0027-8424. PMC 2752521. PMID 19805251.
Wood and Richmond; Richmond, BG (2000). "Human evolution: taxonomy and paleobiology". Journal of Anatomy. 197 (Pt 1): 19–60. doi:10.1046/j.1469-7580.2000.19710019.x. PMC 1468107. PMID 10999270. p. 41: "A recent reassessment of cladistic and functional evidence concluded that there are few, if any, grounds for retaining H. habilis in Homo, and recommended that the material be transferred (or, for some, returned) to Australopithecus (Wood & Collard, 1999)."

Appel, T. A. (1980). "Henri De Blainville and the Animal Series: A Nineteenth-Century Chain of Being". Journal of the History of Biology. 13 (2): 291–319. doi:10.1007/bf00125745. S2CID 83708471.

Snyder, S. "The Great Chain of Being". Archived from the original on 2017-07-28.

Lovejoy, Arthur O. (1964). The great chain of being : a study of the history of an idea : the William James lectures delivered at Harvard University, 1933. Harvard University Press. ISBN 0674361539. OCLC 432702791.
Klein, Richard G. (2009-09-22). "Darwin and the recent African origin of modern humans". Proceedings of the National Academy of Sciences. 106 (38): 16007–16009. Bibcode:2009PNAS..10616007K. doi:10.1073/pnas.0908719106. ISSN 0027-8424. PMC 2752521. PMID 19805251.