Academic literature on the topic 'Basilosauridae'

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Journal articles on the topic "Basilosauridae"

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Gol'din, Pavel, and Evgenij Zvonok. "Basilotritus uheni, a new cetacean (Cetacea, Basilosauridae) from the late middle Eocene of eastern Europe." Journal of Paleontology 87, no. 2 (2013): 254–68. http://dx.doi.org/10.1666/12-080r.1.

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A new basal basilosaurid cetacean, Basilotritus uheni n. gen. n. sp., comes from the late middle Eocene (Bartonian) of Ukraine. It is the earliest dated record of a cetacean from Eastern Europe. The tympanic bulla of Basilotritus uheni shares basilosaurid synapomorphies but possesses unusual traits inherited from protocetids. Cetaceans related to Basilotritus uheni and referred to as Eocetus or “Eocetus” have been recorded from Africa, Europe, North America and South America. “Eocetus” wardii from North America is recombined as Basilotritus wardii. Platyosphys paulsonii and Platyosphys einori from Ukraine are considered as nomina dubia; specimens prior referred to as Platyosphys sp. are similar or related to Basilotritus. Other records of the Eocene cetaceans from Ukraine and south Russia are identified as Basilotritus or related genera. Early basilosaurids are demonstrated to be a paraphyletic, morphologically and geographically diverse group of the genera that colonized the world ocean as late as in Bartonian age and were probably the ancestors of Neoceti, as well as of more derived basilosaurids.
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Тарасенко, К. К. "ПЕРВАЯ НАХОДКА BASILOSAURIDAE (MAMMALIA, CETACEA) В ЭОЦЕНЕ КРАСНОДАРСКОГО КРАЯ (АПШЕРОНСКИЙ РАЙОН, ГОРНЫЙ ЛУЧ)". Доклады Российской академии наук. Науки о жизни 502, № 1 (2022): 66–69. http://dx.doi.org/10.31857/s268673892201019x.

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Davydenko, Svitozar, Manuel J. Laime, and Pavel Gol'din. "The earliest record of a marine mammal (Cetacea: Basilosauridae) from the Eocene of Amazonia." Journal of Vertebrate Paleontology 38, no. 6 (2018): e1549060. http://dx.doi.org/10.1080/02724634.2018.1549060.

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Uhen, Mark D., and David Taylor. "A basilosaurid archaeocete (Cetacea, Pelagiceti) from the Late Eocene of Oregon, USA." PeerJ 8 (October 2, 2020): e9809. http://dx.doi.org/10.7717/peerj.9809.

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Background Basilosaurid archaeocetes are known from the Late Eocene of virtually all coastlines bearing coeval marine rocks except the North Pacific Basin, until now. Here we report on three consecutive posterior thoracic vertebrae of a large, basilosaurid archaeocete from a Late Eocene horizon in the Keasey Formation in Oregon. Methods These vertebrae were morphologically and morphometrically compared to other vertebrae of similar age from around the world. Results The specimens were determined to be different from all currently named species of fossil cetacean, but most similar to those found in the Gulf Coast region of North America. These vertebrae represent the first confirmed specimen of a Late Eocene basilosaurid from the North Pacific. These and other basilosaurids known only from vertebrae are reviewed here in the context of Late Eocene paleoceanography and cetacean evolution.
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Kalmykov, N. P. "New finding of the ancient whale Basilosaurus (Cetacea, Archaeoceti: Basilosauridae) in the Lower Don area." Doklady Earth Sciences 442, no. 2 (2012): 178–80. http://dx.doi.org/10.1134/s1028334x12020055.

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Tarasenko, K. K. "First Record of Basilosauridae (Mammalia, Cetacea) in the Eocene of the Krasnodar Territory (Apsheron District, Gorny Luch)." Doklady Biological Sciences 502, no. 1 (2022): 11–14. http://dx.doi.org/10.1134/s0012496622010094.

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Martínez-Cáceres, Manuel, Olivier Lambert, and Christian de Muizon. "The anatomy and phylogenetic affinities of Cynthiacetus peruvianus, a large Dorudon-like basilosaurid (Cetacea, Mammalia) from the late Eocene of Peru." Geodiversitas 39, no. 1 (2017): 7–163. https://doi.org/10.5252/g2017n1a1.

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Martínez-Cáceres, Manuel, Lambert, Olivier, Muizon, Christian de (2017): The anatomy and phylogenetic affinities of Cynthiacetus peruvianus, a large Dorudon-like basilosaurid (Cetacea, Mammalia) from the late Eocene of Peru. Geodiversitas 39 (1): 7-163, DOI: 10.5252/g2017n1a1, URL: http://dx.doi.org/10.5252/g2017n1a1
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Mychko, E. V., and K. K. Tarasenko. "The First Finding of Basilosauridae (Mammalia: Cetacea) in the Upper Eocene of the Baltic States (Russia, Kaliningrad Region)." Paleontological Journal 54, no. 3 (2020): 311–18. http://dx.doi.org/10.1134/s0031030120030119.

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Gingerich, Philip D., Ayoub Amane, and Samir Zouhri. "Skull and partial skeleton of a new pachycetine genus (Cetacea, Basilosauridae) from the Aridal Formation, Bartonian middle Eocene, of southwestern Morocco." PLOS ONE 17, no. 10 (2022): e0276110. http://dx.doi.org/10.1371/journal.pone.0276110.

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Pachycetus paulsonii, Pachycetus wardii, and Antaecetus aithai are middle Eocene archaeocete whales found in Europe, North America, and Africa, respectively. The three are placed in the new basilosaurid subfamily Pachycetinae. Antaecetus is a new genus known from Egypt and Morocco, and the only pachycetine known from a substantial postcranial skeleton. The skull of A. aithai described here resembles that of Saghacetus osiris in size, but lacks the narrowly constricted rostrum of Saghacetus. Antaecetus is smaller than Pachycetus and its teeth are more gracile. Upper premolars differ in having two rather than three accessory cusps flanking the principal cusp. Pachycetines differ from dorudontines in having elongated posterior thoracic and lumbar vertebrae like those of Basilosaurus, but differ from basilosaurines and from dorudontines in having conspicuously pachyosteosclerotic vertebrae with dense and thickly laminated cortical bone surrounding a cancellous core. Pachycetinae are also distinctive in having transverse processes on lumbar vertebrae nearly as long anteroposteriorly as the corresponding centrum. We infer from their pachyosteosclerotic vertebrae that pachycetines were probably sirenian-like slow swimmers living in shallow coastal seas and feeding on passing fish and mobile invertebrates.
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Bianucci, Giovanni, Olivier Lambert, Mario Urbina, et al. "A heavyweight early whale pushes the boundaries of vertebrate morphology." Nature 620 (June 28, 2023): 824–29. https://doi.org/10.1038/s41586-023-06381-1.

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Bianucci, Giovanni, Lambert, Olivier, Urbina, Mario, Merella, Marco, Collareta, Alberto, Bennion, Rebecca, Salas-Gismondi, Rodolfo, Benites-Palomino, Aldo, Post, Klaas, Muizon, Christian de, Bosio, Giulia, Celma, Claudio Di, Malinverno, Elisa, Pierantoni, Pietro Paolo, Villa1, Igor Maria, Amson1, Eli (2023): A heavyweight early whale pushes the boundaries of vertebrate morphology. Nature 620: 824-829, DOI: 10.1038/s41586-023-06381-1
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Book chapters on the topic "Basilosauridae"

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Amane, Ayoub, Hakima Zair, Fadwa Aniny, Philip Gingerich, and Samir Zouhri. "Basilosauridae (Mammalia, Cetacea) from the Sahara Desert of Southwestern Morocco." In Advances in Science, Technology & Innovation. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-48758-3_18.

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Cooper, Lisa Noelle, Robert Suydam, and J. G. M. Thewissen. "Cetacean Evolution: Copulatory and Birthing Consequences of Pelvic and Hindlimb Reduction." In Sex in Cetaceans. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-35651-3_4.

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AbstractThe earliest fossil cetaceans (archaeocetes) dramatically shifted the shape and articulation of the pelvis and hindlimbs during the land-to-sea transition. Archaeocetes were mostly semi-aquatic “walking whales” that used powerful hindlimbs to walk on land and swim to reach new aquatic sources of food. However, skeletons of the latest diverging lineages of archaeocetes, the basilosaurids, showed that the pelvis initially lost articulation with the sacrum, and hindlimbs were reduced and encased within the body wall. Consequently, basilosaurids were no longer able to bear their weight on land and probably had a different mating strategy compared to the other archaeocetes. Basilosaurid mating behaviors were probably consistent with those of modern cetaceans, including lateral- and ventral-facing copulation. Moreover, a pelvic girdle that was no longer constrained by vertebral and limb attachments likely freed fetal development from size constraints at birth, allowing for the birth of large fetuses. This study reports new data showing growth of the pelvis with age in modern bowhead whales (Balaena mysticetus) and their implications for left-right asymmetry and sex difference in pelvic dimensions among modern cetaceans. Reproductive structures present in modern cetaceans and artiodactyls were probably present in archaeocetes, including pelvic attachment of muscles associated with erection and mobility of the penis, the ischiocavernosus, in males and the clitoris of females. Within females, transverse folds along the vaginal canal are present in some terrestrial artiodactyls, modern cetaceans, and probably archaeocetes. Vaginal folds were probably exapted to assist in successful aquatic copulation in all fossil and modern cetaceans as they may protect some sperm from the lethal effects of sea water. Taken together, shifts in the pelvic girdle of cetaceans occurred over 40 million years ago and probably required changes in mating behaviors that were consistent with those seen in modern cetaceans.
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Uhen, Mark D. "Basilosaurids." In Encyclopedia of Marine Mammals. Elsevier, 2009. http://dx.doi.org/10.1016/b978-0-12-373553-9.00026-2.

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Uhen, Mark D. "Basilosaurids and Kekenodontids." In Encyclopedia of Marine Mammals. Elsevier, 2018. http://dx.doi.org/10.1016/b978-0-12-804327-1.00061-3.

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