• A review of the Eliurus tanala complex (Rodentia, Muroidea, Nesomyidae), with description of a new species from dry forests of western Madagascar. (Bulletin of the American Museum of Natural History, no. 430) 

  Jansa, Sharon A.; Carleton, Michael D.; Soarimalala, Voahangy.; Rakotomalala, Zafimahery.; Goodman, Steven M. (American Museum of Natural History., 2019-05-08)

  Based on 372 specimens examined, we integrated information from two mitochondrial and four nuclear gene sequences, morphological comparisons and morphometric analyses, as well as distributional patterns and ecological ...
• Phylogenetic analysis and revision of the trilobite subfamily Balnibarbiinae (Olenidae). (American Museum novitates, no. 3928) 

  Hopkins, Melanie J. (American Museum of Natural History., 2019-05-07)

  The Balnibarbiinae is one of eight subfamilies of the Olenidae, a diverse family of late Cambrian to Ordovician trilobites. Balnibarbiine species occur in a relatively continuous section of deeper-water sediments exposed ...
• A new morphological dataset reveals a novel relationship for the adzebills of New Zealand (Aptornis) and provides a foundation for total evidence neoavian phylogenetics. (American Museum novitates, no. 3927) 

  Musser, Grace M.; Cracraft, Joel. (American Museum of Natural History., 2019-05-03)

  Relationships among Neoaves, a group comprising approximately 95% of all extant birds, are difficult to resolve because of multiple short internodes presumably created by a rapid evolutionary radiation around the K/Pg ...
• Karyotypes of six species of colubrid snakes from the Western Hemisphere, and the 140-million-year-old ancestral karyotype of Serpentes. (American Museum novitates, no. 3926) 

  Cole, Charles J.; Hardy, Laurence M. (American Museum of Natural History., 2019-04-29)

  Karyotypes are described for six species of snakes from the Western Hemisphere, and comparisons are made with all species of snakes from around the world that have been karyotyped with modern methods. Although there is ...
• Lower jaw of Spathites (Ammonoidea, Acanthoceratoidea) from the Upper Cretaceous (Turonian) of New Mexico. (American Museum novitates, no. 3925) 

  Landman, Neil H.; Sealey, Paul L.; Foley, Michael P.; Lucas, Spencer G. (American Museum of Natural History., 2019-04-24)

  A lower jaw was recently discovered in a limestone concretion in association with the Late Cretaceous (Turonian) ammonite Spathites puercoensis (Herrick and Johnson, 1900) from the Carlile Member of the Mancos Shale in ...
• Immature stages of selected meliponine bees (Apoidea, Apidae). (American Museum novitates, no. 3924) 

  Rozen, Jerome G., Jr. (Jerome George), 1928-; Quezada Euán, José Javier G.; Roubik, David W. (David Ward), 1951-; Smith, Corey Shepard. (American Museum of Natural History., 2019-04-08)

  This paper describes the eggs and last larval instars of certain species of bees belonging to the tribe Meliponini, one of the four related tribes that comprise the corbiculate bees in the subfamily Apinae. The four taxa ...
• Small mammals of the Mayo River Basin in northern Peru, with the description of a new species of Sturnira (Chiroptera, Phyllostomidae). (Bulletin of the American Museum of Natural History, no. 429) 

  Velazco, Paúl M.; Patterson, Bruce D. (American Museum of Natural History., 2019-04-05)

  We present the results of an inventory of small mammals in the Mayo River basin, one of the least-studied regions of the Central Andes in Peru. We conducted inventories at three locations in May 2007. We collected 47 species ...
• A neotype for Didelphis marsupialis Linnaeus, 1758. (American Museum novitates, no. 3923) 

  Feijó, Anderson.; Voss, Robert S. (American Museum of Natural History., 2019-03-26)

  Didelphis marsupialis, type species of the genus Didelphis, is a widely distributed and commonly studied American marsupial. Unfortunately, the previously noncontroversial application of the epithet marsupialis Linnaeus, ...
• Intraspecific variation through ontogeny in late Cretaceous ammonites. (American Museum novitates, no. 3922) 

  Klein, Carina.; Landman, Neil H. (American Museum of Natural History., 2019-03-04)

  This project assesses intraspecific variation through the ontogeny of the ammonite Scaphites whitfieldi Cobban, 1951, from the Upper Cretaceous of the U.S. Western Interior. Our sample consists of 103 dorsoventral cross ...
• Late Quaternary fossil mammals from the Cayman Islands, West Indies. (Bulletin of the American Museum of Natural History, no. 428) 

  Morgan, Gary S.; MacPhee, R. D. E.; Woods, Roseina.; Turvey, Sam. (American Museum of Natural History., 2019-03-04)

  Abundant fossils of nesophontid lipotyphlan insectivores and capromyid rodents have been collected from late Quaternary deposits on the Cayman Islands, an island group separated by a major marine barrier from other Caribbean ...
• The phylogenetic relationships of Cretaceous biting midges, with a key to all known genera (Diptera, Ceratopogonidae). (American Museum novitates, no. 3921) 

  Borkent, Art. (American Museum of Natural History., 2019-02-25)

  The phylogenetic positions of Cretaceous species of Ceratopogonidae previously placed in the genera Archiculicoides Szadziewski, Protoculicoides Boesel, and Atriculicoides Remm are reappraised in light of synapomorphies. ...
• Description of two species of Hoploscaphites (Ammonoidea, Ancyloceratina) from the Upper Cretaceous (Lower Maastrichtian) of the U.S. Western Interior. (Bulletin of the American Museum of Natural History, no. 427) 

  Landman, Neil H.; Kennedy, W. J. (William James); Larson, Neal L.; Grier, Joyce C.; Grier, James W.; Linn, Tom. (American Museum of Natural History., 2019-02-22)

  Two species of scaphitid ammonites (Ammonoidea: Ancyloceratina) from the Upper Cretaceous (lower Maastrichtian) of the Western Interior of North America are described. Hoploscaphites macer, n. sp., is medium size, with ...
• The crevice weaver spider genus Kukulcania (Araneae, Filistatidae). (Bulletin of the American Museum of Natural History, no. 426) 

  Magalhaes, Ivan L. F.; Ramírez, Martín J. (American Museum of Natural History., 2019-02-15)

  Filistatidae is one of the most phylogenetically enigmatic spider groups, and the genus Kukulcania Lehtinen includes the commonest representatives of the family. Its type species, K. hibernalis (Hentz, 1842), remains a ...
• Unique metasomal musculature in sweat bees (Hymenoptera, Apoidea, Halictidae) revealed by micro-CT scanning. (American Museum novitates, no. 3920) 

  Herhold, Hollister W.; Davis, Steven R., 1983-; Smith, Corey Shepard.; Engel, Michael S.; Grimaldi, David A. (American Museum of Natural History., 2019-02-12)

  Bees of the family Halictidae (Apoidea: Anthophila) have three pairs of thick, bundled muscles that are circular to subcircular in cross section within the first metasomal segment, as revealed by micro-CT scanning of 16 ...
• A new Amazonian species of Adenomera (Anura, Leptodactylidae) from the Brazilian state of Pará : a tody-tyrant voice in a frog. (American Museum novitates, no. 3919) 

  Carvalho, Thiago R. de.; Giaretta, Ariovaldo A.; Angulo, Ariadne.; Haddad, Célio F. B.; Peloso, Pedro L. V. (American Museum of Natural History., 2019-02-07)

  Leptodactylid frogs are phenotypically diverse, widely distributed across the Neotropics, and are known to harbor high levels of cryptic species diversity. This is especially true in Adenomera, where several candidate ...
• Chlorocyon phantasma, a late Eocene borhyaenoid (Mammalia, Metatheria, Sparassodonta) from the Los Helados locality, Andean Main Range, central Chile. (American Museum novitates, 0003-0082 ; no. 3918) 

  Engelman, Russell K.; Flynn, John J. (John Joseph), 1955-; Gans, Phillip B., 1956-; Wyss, André R.; Croft, Darin A. (American Museum of Natural History., 2018-12-28)

  Sparassodont metatherians were the dominant terrestrial mammalian predators during South America's long Cenozoic isolation. This group's early fossil record is very poor, however, particularly for the late Eocene and early ...
• A new small barb (Cyprininae, Smiliogastrini) from the Louesse, Lekoumou (upper Niari Basin), and Djoulou (upper Ogowe Basin) rivers in the Republic of Congo, west-central Africa. (American Museum novitates, no. 3917) 

  Mamonekene, Victor.; Ibala Zamba, Armel.; Stiassny, Melanie L. J. (American Museum of Natural History., 2018-12-26)

  A new species of smiliogastrin cyprinid is described from the Louesse, Lekoumou (upper Niari basin), and Djoulou (upper Ogowe basin) rivers in the Republic of Congo, west-central Africa. The new species is readily distinguished ...
• The Cuban crocodile (Crocodylus rhombifer) from late Quaternary underwater cave deposits in the Dominican Republic. (American Museum novitates, no. 3916) 

  Morgan, Gary S.; Albury, Nancy Ann, 1955-; Rímoli, Renato O.; Lehman, Phillip.; Rosenberger, Alfred L.; Cooke, Siobhán B. (American Museum of Natural History., 2018-12-21)

  Late Quaternary fossils representing a locally extinct population of the Cuban crocodile (Crocodylus rhombifer) are reported from two underwater caves in the Dominican Republic. A large fossil sample of C. rhombifer, from ...
• A new species of Eumanota Edwards (Diptera, Mycetophilidae, Manotine) from Colombia : evidence for a pseudogondwanan pattern. (American Museum novitates, no. 3915) 

  Amorim, Dalton de Souza.; Oliveira, Sarah S.; Henao-Sepulvéda, Andrea C. (American Museum of Natural History., 2018-12-18)

  Eumanota wolffae, sp. nov., is described from the high Andean forests of Colombia. This is the first Neotropical species of the clade of non-Manota genera of the mycetophilid subfamily Manotinae--to date known entirely ...
• Biostratigraphy and diversity of Paleogene perissodactyls from the Erlian Basin of Inner Mongolia, China. 

  Bai, Bin, 1981-; Wang, Yuan-qing.; Li, Qian (Paleontologist); Wang, Hai-bing.; Mao, Fang-yuan.; Gong, Yan-xin.; Meng, Jin (Paleontologist) (American Museum of Natural History., 2018-12-14)

  Extant perissodactyls (horses, rhinos, and tapirs) comprise a small portion of living mammals, but fossil perissodactyls were more diverse and commonly dominated Paleogene faunas. Unfortunately, the taxonomy and distribution ...

View more