Lentiarenium Manja Voss & Björn Berning & Erich Reiter 2016, gen. nov.

• Main Authors: Voss, Manja, Berning, Björn, Reiter, Erich
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Mammalia; Sirenia; Dugongidae; Lentiarenium; Aguilera; Fossa; Meredith; Steller's sea cow
• Online Access: https://dx.doi.org/10.5281/zenodo.6074999; https://zenodo.org/record/6074999

Genus Lentiarenium Voss gen. nov. urn:lsid:zoobank.org:act:A67C71FB-CBC3-460E-953C-5774A3EA9939 Type species Halitherium cristolii Fitzinger, 1842 Diagnosis Dugongid based on the following combination of synapomorphies: absence of alisphenoid canal, open foramen ovale , loss of permanent ffth premolar, and squamosal reaching temporal crest. Differs from the Dugonginae ( Crenatosiren Domning, 1991, Nanosiren Domning & Aguilera, 2008, Dugong Lacépède, 1799, Rytiodus Lartet, 1866, Corystosiren Domning, 1990, Callistosiren Vélez-Juarbe & Domning, 2015, Bharatisiren Bajpai & Domning, 1997, Domningia Thewissen & Bajpai, 2009, Kutchisiren Bajpai, Domning, Das, Vélez-Juarbe & Mishra, 2010, Dioplotherium Cope, 1883 and Xenosiren Domning, 1989), the Hydrodamalinae Simpson, 1932 ( Dusisiren Domning, 1978 and Hydrodamalis Retzius, 1794), and other dugongid genera ( Eotheroides Palmer, 1899, Prototherium De Zigno, 1887, Eosiren Andrews, 1902, Caribosiren Reinhart, 1959, Priscosiren Vélez-Juarbe & Domning, 2014b, Metaxytherium De Christol, 1840, and other species formerly lumped under “ Halitherium ”) by displaying the following unique combination of plesiomorphies: frontal roof fat; supraorbital process of the frontal dorsoventrally fattened with well-developed, prominent posterolateral corner; supraoccipital wider dorsally than ventrally; exoccipitals meet in a suture dorsal to the foramen magnum posttympanic process with a prominent anteroventral process for attachment of m. sternomastoideus paroccipital process of exoccipital long, reaching as far ventrally as occipital condyles; accessory mental foramina present; horizontal ramus of mandible slender dorsoventrally; permanent premolars (P2/p2 – P4/p4) present. Synapomorphies: nasals reduced and not meeting in midline (shared with Eosiren imenti Domning et al ., 1994, Caribosiren , Priscosiren , and all later dugongid taxa), nasal incisure at posterior end of the mesorostral fossa deep, extending posterior to the supraorbital processes of the frontals (shared with some Metaxytherium spp., dugongines, and Hydrodamalis ); strongly concave ventral border of the horizontal mandibular ramus (shared with Priscosiren , Metaxytherium spp., and dugongines), masticating surface of mandible broad (shared with Metaxytherium ssp., dugongines, and hydrodamalines). In contrast to the similar species Priscosiren atlantica it has a supraorbital process with the posterolateral corner projecting posteriorly; prominent temporal crests on frontal and parietal; supraoccipital distinct in height, only slightly wider than high. Etymology A combination of the Latin terms for the Linz Sands ( Lentia and arenium ), the informal name for the upper Oligocene sediments in which the species was found. : Published as part of Manja Voss, Björn Berning & Erich Reiter, 2016, A taxonomic and morphological re-evaluation of " Halitherium " cristolii Fitzinger, 1842 (Mammalia, Sirenia) from the late Oligocene of Austria, with the description of a new genus, pp. 1-32 in European Journal of Taxonomy 256 on pages 6-7, DOI: 10.5852/ejt.2016.256, http://zenodo.org/record/889326 : {"references": ["Fitzinger L. J. 1842. Bericht uber die in den Sandlagern von Linz aufgefundenen fossilen Reste eines urweltlichen Saugers (Halitherium cristolii). Bericht uber das Museum Francisco-Carolinum Linz 6: 61 - 72.", "Domning D. P. & Aguilera O. A. 2008. Fossil Sirenia of the West Atlantic and Caribbean Region. VIII. Nanosiren garciae, gen. et sp. nov. and Nanosiren sanchezi, sp. nov. Journal of Vertebrate Paleontology 28 (2): 479 - 500. http: // dx. doi. org / 10.1671 / 0272 - 4634 (2008) 28 [479: FSOTWA] 2.0. CO; 2", "Springer M. S., Signore A. V., Paijmans J. L. A., Velez-Juarbe J., Domning D. P., Bauer C. E., He K., Crerar L., Campos P. F., Murphy W. J., Meredith R. W., Gatesy J., Willerslev E., MacPhee R. D. E., Hofreiter M. & Campbell K. L. 2015. Interordinal gene capture, the phylogenetic position of Steller's sea cow based on molecular and morphological data, and the macroevolutionary history of Sirenia. Molecular Phylogenetics and Evolution 91: 178 - 193. http: // dx. doi. org / 10.1016 / j. ympev. 2015.05.022", "Domning D. P. 1997. Fossil Sirenia of the West Atlantic and Caribbean region. VI. Crenatosiren olseni (Reinhart, 1976). Journal of Vertebrate Paleontology 17 (2): 397 - 412. http: // dx. doi. org / 10.1080 / 027246 34.1997. 10010984", "Domning D. P. 1989. Fossil Sirenia of the West Atlantic and Caribbean region. II. Dioplotherium manigaulti Cope, 1883. Journal of Vertebrate Paleontology 9 (4): 415 - 428. http: // dx. doi. org / 10.1080 / 02 724634.1989. 10011774", "Simpson G. G. 1932. Fossil Sirenia of Florida and the evolution of the Sirenia. Bulletin of the American Museum of Natural History 59: 419 - 503.", "Domning D. P. 1978. Sirenian evolution in the North Pacifc Ocean. University of California Publications in Geological Sciences 118: 1 - 177.", "Reinhart R. H. 1959. A review of the Sirenia and Desmostylia. University of California Publications in Geological Sciences 36: 1 - 146.", "Velez-Juarbe J. & Domning D. P. 2014 b. Fossil Sirenia of the West Atlantic and Caribbean region. X. Priscosiren atlantica, gen. et sp. nov. Journal of Vertebrate Paleontology 34 (4): 951 - 964. http: // dx. doi .org / 10.1080 / 02724634.2013.815192", "Domning D. P. 1994. A phylogenetic analysis of the Sirenia. In: Berta A. & Demere T. (eds) Contributions in marine mammal paleontology honoring Frank C. Whitmore Jr. Proceedings of the San Diego Society of Natural History 29: 177 - 189, San Diego Society of Natural History, San Diego"]}