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  1. Article ; Online: Morphological affinities of a fossil ulna (KNM-WS 65401) from Buluk, Kenya.

    Nishimura, Abigail C / Russo, Gabrielle A / Nengo, Isaiah O / Miller, Ellen R

    Journal of human evolution

    2022  Volume 166, Page(s) 103177

    Abstract: The morphological affinities of a primate proximal ulna (KNM-WS 65401) recovered from the late Early Miocene site Buluk, Kenya, are appraised. Nineteen three-dimensional landmarks on ulnae from 36 extant anthropoid species (n = 152 individuals) and KNM- ... ...

    Abstract The morphological affinities of a primate proximal ulna (KNM-WS 65401) recovered from the late Early Miocene site Buluk, Kenya, are appraised. Nineteen three-dimensional landmarks on ulnae from 36 extant anthropoid species (n = 152 individuals) and KNM-WS 65401, as well as a subset of 14 landmarks on six ulnae belonging to other East African Miocene catarrhine taxa, were collected. To quantify ulnar shape, three-dimensional geometric morphometric techniques were used and linear dimensions commonly cited in the literature were derived from the landmark data. KNM-WS 65401 is situated between monkeys and hominoids in the principal components morphospace. KNM-WS 65401 shares features such as a short olecranon process, broad trochlear notch, and laterally oriented radial notch with extant hominoids, whereas features such as an anteriorly directed trochlear notch and flat, proximodistally elongated, and anteroposteriorly narrow radial notch are shared with extant monkeys. Principal component scores and linear metrics generally align KNM-WS 65401 with both suspensors and arboreal quadrupeds, but quadratic and linear discriminant analyses of principal component score data provide posterior probabilities of 80% and 83%, respectively, for assignment of KNM-WS 65401 to the suspensory group. Compared with fossil ulnae from other Miocene primates, KNM-WS 65401 is morphologically most distinct from KNM-LG 6, attributed to Dendropithecus macinnesi, and morphologically most similar to KNM-WK 16950R, attributed to Turkanapithecus kalakolensis. The KNM-WS 65401 individual likely possessed more enhanced capabilities for elbow joint extension, perhaps during suspensory behaviors, compared with other Miocene primates in the sample.
    MeSH term(s) Animals ; Fossils ; Hominidae/anatomy & histology ; Kenya ; Primates/anatomy & histology ; Ulna/anatomy & histology
    Language English
    Publishing date 2022-04-04
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, Non-U.S. Gov't
    ZDB-ID 120141-4
    ISSN 1095-8606 ; 0047-2484
    ISSN (online) 1095-8606
    ISSN 0047-2484
    DOI 10.1016/j.jhevol.2022.103177
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 976: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Wrist morphology reveals substantial locomotor diversity among early catarrhines: an analysis of capitates from the early Miocene of Tinderet (Kenya).

    Wuthrich, Craig / MacLatchy, Laura M / Nengo, Isaiah O

    Scientific reports

    2019  Volume 9, Issue 1, Page(s) 3728

    Abstract: Considerable taxonomic diversity has been recognised among early Miocene catarrhines (apes, Old World monkeys, and their extinct relatives). However, locomotor diversity within this group has eluded characterization, bolstering a narrative that nearly ... ...

    Abstract Considerable taxonomic diversity has been recognised among early Miocene catarrhines (apes, Old World monkeys, and their extinct relatives). However, locomotor diversity within this group has eluded characterization, bolstering a narrative that nearly all early catarrhines shared a primitive locomotor repertoire resembling that of the well-described arboreal quadruped Ekembo heseloni. Here we describe and analyse seven catarrhine capitates from the Tinderet Miocene sequence of Kenya, dated to ~20 Ma. 3D morphometrics derived from these specimens and a sample of extant and fossil capitates are subjected to a series of multivariate comparisons, with results suggesting a variety of locomotor repertoires were present in this early Miocene setting. One of the fossil specimens is uniquely derived among early and middle Miocene capitates, representing the earliest known instance of great ape-like wrist morphology and supporting the presence of a behaviourally advanced ape at Songhor. We suggest Rangwapithecus as this catarrhine's identity, and posit expression of derived, ape-like features as a criterion for distinguishing this taxon from Proconsul africanus. We also introduce a procedure for quantitative estimation of locomotor diversity and find the Tinderet sample to equal or exceed large extant catarrhine groups in this metric, demonstrating greater functional diversity among early catarrhines than previously recognised.
    MeSH term(s) Animals ; Biological Evolution ; Capitate Bone/anatomy & histology ; Cercopithecidae/anatomy & histology ; Cercopithecidae/physiology ; Fossils/anatomy & histology ; Hominidae/anatomy & histology ; Hominidae/physiology ; Kenya ; Locomotion ; Motor Activity ; Wrist/anatomy & histology
    Language English
    Publishing date 2019-03-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-019-39800-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Catarrhine hallucal metatarsals from the early Miocene site of Songhor, Kenya.

    Patel, Biren A / Yapuncich, Gabriel S / Tran, Cassandra / Nengo, Isaiah O

    Journal of human evolution

    2017  Volume 108, Page(s) 176–198

    Abstract: Songhor is an early Miocene fossil locality in Kenya known for its diverse primate assemblage that includes catarrhine species belonging to the genera Kalepithecus, Limnopithecus, Dendropithecus, Rangwapithecus, and Proconsul. Expeditions to Songhor ... ...

    Abstract Songhor is an early Miocene fossil locality in Kenya known for its diverse primate assemblage that includes catarrhine species belonging to the genera Kalepithecus, Limnopithecus, Dendropithecus, Rangwapithecus, and Proconsul. Expeditions to Songhor since the 1930s have recovered unassociated catarrhine postcranial remains from both the fore- and hindlimbs, including multiple elements from the feet. In this study, we describe KNM-SO 31233, a complete left hallucal metatarsal (Mt1), along with several other fragmentary Mt1 specimens (KNM-SO 1080, 5129, 5141, 22235). These fossils were compared to extant catarrhines and platyrrhines, as well as available fossil Miocene catarrhine Mt1s. Morphometric data were obtained from 3D surface renderings and subjected to a number of analyses to assess their phenetic affinity with the comparative sample, make predictions of body mass, and to infer their functional morphology. The size and shape of the Songhor Mt1s are diverse, exhibiting a large robust morph (KNM-SO 5141) similar in size but not in shape to extant African apes, medium-sized morphs (KNM-SO 1080, 5129 and 22235), and a smaller, slender one (KNM-SO 31233) that has a shape resembling arboreal quadrupedal leaping monkeys and suspensory atelines and hylobatids. KNM-SO 31233 is unlike other known fossil Mt1s, and in general, none of the Songhor Mt1s resembled any single extant anthropoid clade or species. The morpho-functional diversity of Songhor Mt1s is consistent with an extensive morphological and phylogenetic catarrhine diversity in the early part of the Miocene epoch.
    MeSH term(s) Animals ; Catarrhini/anatomy & histology ; Fossils/anatomy & histology ; Hominidae/anatomy & histology ; Kenya ; Metatarsal Bones/anatomy & histology ; Phylogeny
    Language English
    Publishing date 2017-05-23
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 120141-4
    ISSN 1095-8606 ; 0047-2484
    ISSN (online) 1095-8606
    ISSN 0047-2484
    DOI 10.1016/j.jhevol.2017.03.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 976: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  4. Article ; Online: Catarrhine hallucal metatarsals from the early Miocene site of Songhor, Kenya

    Patel, Biren A. / Yapuncich, Gabriel S. / Tran, Cassandra / Nengo, Isaiah O.

    Journal of human evolution. 2017 July, v. 108, p. 176-198

    2017  , Page(s) 176–198

    Abstract: Songhor is an early Miocene fossil locality in Kenya known for its diverse primate assemblage that includes catarrhine species belonging to the genera Kalepithecus, Limnopithecus, Dendropithecus, Rangwapithecus, and Proconsul. Expeditions to Songhor ... ...

    Abstract Songhor is an early Miocene fossil locality in Kenya known for its diverse primate assemblage that includes catarrhine species belonging to the genera Kalepithecus, Limnopithecus, Dendropithecus, Rangwapithecus, and Proconsul. Expeditions to Songhor since the 1930s have recovered unassociated catarrhine postcranial remains from both the fore- and hindlimbs, including multiple elements from the feet. In this study, we describe KNM-SO 31233, a complete left hallucal metatarsal (Mt1), along with several other fragmentary Mt1 specimens (KNM-SO 1080, 5129, 5141, 22235). These fossils were compared to extant catarrhines and platyrrhines, as well as available fossil Miocene catarrhine Mt1s. Morphometric data were obtained from 3D surface renderings and subjected to a number of analyses to assess their phenetic affinity with the comparative sample, make predictions of body mass, and to infer their functional morphology. The size and shape of the Songhor Mt1s are diverse, exhibiting a large robust morph (KNM-SO 5141) similar in size but not in shape to extant African apes, medium-sized morphs (KNM-SO 1080, 5129 and 22235), and a smaller, slender one (KNM-SO 31233) that has a shape resembling arboreal quadrupedal leaping monkeys and suspensory atelines and hylobatids. KNM-SO 31233 is unlike other known fossil Mt1s, and in general, none of the Songhor Mt1s resembled any single extant anthropoid clade or species. The morpho-functional diversity of Songhor Mt1s is consistent with an extensive morphological and phylogenetic catarrhine diversity in the early part of the Miocene epoch.
    Keywords Grasping foot ; Hallux ; Hominoid ; Dendropithecus ; Proconsul ; Rangwapithecus
    Language English
    Dates of publication 2017-07
    Size p. 176-198
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 120141-4
    ISSN 1095-8606 ; 0047-2484
    ISSN (online) 1095-8606
    ISSN 0047-2484
    DOI 10.1016/j.jhevol.2017.03.013
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 73/716: Show issues

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  5. Article ; Online: Oldest evidence of abundant C

    Peppe, Daniel J / Cote, Susanne M / Deino, Alan L / Fox, David L / Kingston, John D / Kinyanjui, Rahab N / Lukens, William E / MacLatchy, Laura M / Novello, Alice / Strömberg, Caroline A E / Driese, Steven G / Garrett, Nicole D / Hillis, Kayla R / Jacobs, Bonnie F / Jenkins, Kirsten E H / Kityo, Robert M / Lehmann, Thomas / Manthi, Fredrick K / Mbua, Emma N /
    Michel, Lauren A / Miller, Ellen R / Mugume, Amon A T / Muteti, Samuel N / Nengo, Isaiah O / Oginga, Kennedy O / Phelps, Samuel R / Polissar, Pratigya / Rossie, James B / Stevens, Nancy J / Uno, Kevin T / McNulty, Kieran P

    Science (New York, N.Y.)

    2023  Volume 380, Issue 6641, Page(s) 173–177

    Abstract: The assembly of Africa's iconic ... ...

    Abstract The assembly of Africa's iconic C
    MeSH term(s) Animals ; Africa, Eastern ; Biological Evolution ; Ecosystem ; Grassland ; Hominidae ; Mammals ; Poaceae
    Language English
    Publishing date 2023-04-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.abq2834
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 27: Show issues Location:
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    ab Jg. 2022: Lesesaal (EG)
    Zs.MG 77: Show issues

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