Eotheroides lambondrano, New Middle Eocene Seacow (Mammalia, Sirenia) from the Mahajanga Basin, Northwestern Madagascar

  title={Eotheroides lambondrano, New Middle Eocene Seacow (Mammalia, Sirenia) from the Mahajanga Basin, Northwestern Madagascar},
  author={K. Samonds and Iyad S. Zalmout and M. Irwin and D. Krause and R. Rogers and L. L. Raharivony},
ABSTRACT The first diagnostic sirenian material from Madagascar and, more broadly, the first diagnostic pre-Pleistocene Cenozoic mammal material recovered from the island is reported. Eotheroides lambondrano is a new species of sirenian collected from middle Eocene nearshore marine deposits in the Mahajanga Basin of northwestern Madagascar. The recovered material consists of a nearly complete adult skull (including the first complete rostrum known for Eotheroides) and several portions of… Expand
First adequately-known quadrupedal sirenian from Eurasia (Eocene, Bay of Biscay, Huesca, northeastern Spain)
Sirenians are the only extant herbivorous mammals fully adapted to an aquatic lifestyle and Sobrarbesiren is recovered as the sister taxon of Dugongidae and represents a transitional stage of adaptation to aquatic life between the amphibious quadrupedAL prorastomids and the aquatic quadrupedal protosirenids. Expand
Gondwanatheria and ?Multituberculata (Mammalia) from the Late Cretaceous of Madagascar
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A new dugong species (Sirenia, Dugongidae) from the Eocene of Catalonia (NE Iberian Peninsula)
A cladistic analysis based on craniodental features recovers the new stem dugongid species, Prototherium ausetanum sp. Expand
New Miocene sirenians from Nosy Makamby, northwestern Madagascar
ABSTRACT The near lack of vertebrate fossils from the Cenozoic of Madagascar has left many of the details regarding the origin and evolution of the island’s extant faunas unknown. However, recentExpand
Cranial Remain from Tunisia Provides New Clues for the Origin and Evolution of Sirenia (Mammalia, Afrotheria) in Africa
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The most northerly record of the sirenian Protosiren and the possible polyphyletic evolution of manatees and dugongs
Newly discovered remains of the early Middle Eocene (Lutetian) sirenian Protosiren (Protosirenidae) in shark tooth rich conglomerates from a coastal delta environment northwest of the EuropeanExpand
A middle - late Eocene neoselachian assemblage from nearshore marine deposits, Mahajanga Basin, northwestern Madagascar
This fauna represents the first Cenozoic neoselachian fossil record from the Eocene of Madagascar and broadens the understanding of their evolutionary and biogeographic history in the southern hemisphere during this time. Expand
An early Miocene dugongine (Sirenia: Dugongidae) from Panama
ABSTRACT Herein, we describe a new early Miocene dugongine from marine deposits of the Culebra Cut (Gaillard Cut) of the Panama Canal. The new taxon, Culebratherium alemani, gen. et sp. nov.,Expand
Miocene benthic foraminifera from Nosy Makamby and Amparafaka, Mahajanga Basin, northwestern Madagascar
Abstract Madagascar is well known for its fossil deposits and hosts one of the world’s most important Upper Cretaceous terrestrial faunal sites (in the Mahajanga and Morondava Basins in the west andExpand


New Species of Protosiren (Mammalia, Sirenia) from the Early Middle Eocene of Balochistan (Pakistan)
Protosiren eothene is a new species of early Lutetian (early middle Eocene) sirenian collected from sediments deposited in a coastal marine setting in eastern Tethys. It was found in the upper partExpand
Abstract Discoveries of three species of Eocene sirenians in District Kachchh, State of Gujarat, India, are reported. A species of the protosirenid Protosiren is represented by cranial andExpand
On Fossil Evidences of a Sirenian Mammal (Eotherium ægyptiacum, Owen) from the Nummulitic Eocene of the Mokattam Cliffs, near Cairo
  • Owen
  • Geology
  • Quarterly Journal of the Geological Society of London
  • 1875
The evidence of the Sirenian mammal now submitted to the Society is from the white, compact, fine-grained, calcareous stone of the Nummulitic Eocene Tertiary period, now quarried extensively in theExpand
North American Eocene Sea Cows (Mammalia: Sirenia)
Domning, Daryl P., Gary S. Morgan, and Clayton E. Ray. North American Eocene Sea Cows (Mammalia: Sirenia). Smithsonian Contributions to Paleobiology, number 52, 69 pages, 34 figures, 4 tables,Expand
Current available geologic and paleontologic data are most consistent with the Africa-first model, suggesting that Africa was the first of the major Gondwanan landmasses to be fully isolated prior to the Albian/Cenomanian boundary, and that its terrestrial vertebrate faunas became progressively more provincial during the Cretaceous, while those on other Gondwana landmassed remained relatively cosmopolitan until the later stages of the Late Cret Jurassic. Expand
A Small Collection of Fossil Vertebrates from the Middle Eocene Kuldana and Kohat Formations of Punjab (Pakistan)
-In 1975 the author made a new collection of fossil vertebrates from the Middle Eocene Kuldana and Kohat Formations in the Kala Chitta mountains of the Punjab Province in Pakistan. Vertebrates wereExpand
A New Early Oligocene Dugongid (Mammalia, Sirenia) from Fayum Province, Egypt
Eosiren imenti, new species, is described on the basis of a cranium from the early Oligocene Gebel Qatrani Formation in Fayum Province, Egypt. The new species is similar to, but more derived than,Expand
Asynchronous colonization of Madagascar by the four endemic clades of primates, tenrecs, carnivores, and rodents as inferred from nuclear genes.
A simultaneous reconstruction of phylogeny and age of the four radiations based on a 3.5-kb data set from three nuclear genes supports each as a monophyletic clade, sister to African taxa, and thereby identifies four events of colonization out of Africa. Expand
Catalogus Mammalium tam viventium quam fossilium
A new catalogue of Mammals is much wanted, and will be of great use to the many workers in that group of animals, although the work appears to have been performed in a satisfactory manner, though it would not be difficult to point out a certain number of slips and errors. Expand
The natural history of Madagascar
Separated from the mainland of Africa for 160 million years, Madagascar has evolved an incredible wealth of biodiversity, with thousands of species that can be found nowhere else on earth. ForExpand