Seraitu, Mille-Logya (Pliocene to of Ethiopia)

Where: Afar, Ethiopia (11.6° N, 40.8° E: paleocoordinates 11.4° N, 40.6° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Piacenzian to Piacenzian (3.6 - 1.8 Ma)

• Besides the Hinti Mageta Tuff at the base of the Seraitu lake beds, two tuffs within the lake sediments provide precise ages: MLP14/SR-6 at 2.576 ± 0.008 Ma and MLP14/GOY-2 at 2.485 ± 0.018Ma. In addition to the chronological information from these markers, two sections within the Seraitu lake beds zone record a magnetostratigraphic reversal which we interpret to be the Gauss/Matuyama, dated to 2.59 Ma (Fig. 1; section JGW14-10 and in section JGW14-6; see Supplementary Figs. 6–8, Supple- mentary Table 5).

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; unlithified claystone and mudstone

• The middle stratigraphic unit is represented by the Seraitu lake beds, which often form bare, steep cliffs of largely mudstone outcrops representing lacustrine deposition.
• The sediments of the Seraitu lake beds are predominantly laminated clays which often contain abundant ostracods, gastropods and some bivalves, as well as plant fragments and fish remains.

Size class: macrofossils

Collection methods: Research at Mille-Logya started in 2012 and our team conducted systematic geological and paleontological surveys in 2014, 2015, 2016, 2018, and 2019.

Primary reference: Z. Alemseged, J. G. Wynn, D. Geraads, D. Reed, W. A. Barr, R. Bobe, S. P. McPherron, A. Deino, M. Alene, M. J. Sier, D. Roman and J. Mohan. 2020. Fossils from Mille-Logya, Afar, Ethiopia, elucidate the link between Pliocene environmental changes and Homo origins. Nature Communications 11(2480) [P. Mannion/G. Varnham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224657: authorized by Philip Mannion, entered by Grace Varnham on 25.03.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Proboscidea - Elephantidae
"Elephas recki" = Palaeoloxodon recki
"Elephas recki" = Palaeoloxodon recki Dietrich 1915 elephant
 Proboscidea - Deinotheriidae
Deinotherium bozasi Arambourg 1934 deinothere
 Tubulidentata - Orycteropodidae
Orycteropus sp. Geoffroy 1791 aardvark
 Perissodactyla - Equidae
Hipparionini sp. Quinn 1955 hipparionine horse
 Perissodactyla - Rhinocerotidae
Ceratotherium sp. Gray 1868 white rhino
Diceros sp. Gray 1821 black rhino
 Theriamorpha - Sivatheridae
"Sivatherium maurusium" = Libytherium maurusium
"Sivatherium maurusium" = Libytherium maurusium Pomel 1893 placental
 Artiodactyla - Hippopotamidae
aff. Hippopotamus protamphibius Arambourg 1944 hippo
 Artiodactyla - Giraffidae
Giraffa sp. Brisson 1762 giraffe
Giraffa jumae/stillei
 Artiodactyla - Bovidae
Tragelaphus nakuae Arambourg 1941 antelope
? Tragelaphus aff. lockwoodi Reed and Bibi 2010 antelope
Bovini indet. Gray 1821 antelope
Pelorovis cf. kaisensis Geraads and Thomasson 1994 antelope
Kobus cf. oricornus Gentry 1985 antelope
Kobus sigmoidalis Arambourg 1941 antelope
Aepyceros sp. Sundevall 1847 impala
Alcelaphini indet. Brookes 1876 antelope
Damalborea sp. Gentry 2010 antelope
 Artiodactyla - Camelidae
Camelus grattardi Geraads 2014 camel
 Artiodactyla - Suidae
"Notochoerus euilus" = Hylochoerus euilus Hopwood 1926 giant forest hog
Kolpochoerus sp. van Hoepen and van Hoepen 1932 pig
? n. sp.
Kolpochoerus limnetes Hopwood 1926 pig
 Carnivora - Felidae
Felidae indet. Gray 1821 cat
cf. Dinofelis sp. Zdansky 1924 cat
 Carnivora - Hyaenidae
? Crocuta eturono spotted hyaena
 Primates - Cercopithecidae
Cercopithecidae indet. Gray 1821 monkey
Theropithecus sp. Geoffroy 1843 gelada
Reptilia
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
 Crocodylia - Crocodylidae
Crocodylus sp. Laurenti 1768 crocodile
Euthecodon sp. Fortau 1920 crocodile
Actinopteri
 Teleostei -