<i>Lontra weiri</i>, sp. nov., a Pliocene river otter (Mammalia, Carnivora, Mustelidae, Lutrinae) from the Hagerman Fossil Beds (Hagerman Fossil Beds National Monument), Idaho, U.S.A.

Prassack, Kari A.

doi:10.1080/02724634.2016.1149075

Cited by 9 publications

(4 citation statements)

References 30 publications

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“…by Bjork (1970) and assigned to B. hilli by McDonald (2020) b Identified as Canis lepophagus by Bjork (1970), Canis ferox by Tedford et al (2009), Canis sp. by Lucenti and Rook (2020) and referred to here as Hagerman-Rexroad Canis c Specimens described in this paper d Werdelin (1985) e Prassack (2016) f S. Wallace pers. comm.…”

Section: Site Descriptionmentioning

confidence: 94%

“…The Carnivora are well represented with six families and, with this new canid, 19 species (Table 1). Notable carnivoran taxa include the enigmatic meline, Ferinestrix vorax (Bjork 1970), a Blancan-aged remnant of the Hemphillian ursid, Agriotherium (Samuels et al 2009), and the oldest New World river otter, Lontra weiri (Prassack 2016). Bjork (1970) described two canids from the Hagerman fossil beds: Canis lepophagus, a canine (see also Nowak 1979) and Borophagus hilli, a borophagine.…”

Section: Hagerman Fossil Beds National Monument (Hafo)mentioning

confidence: 99%

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Maybe So, Maybe Not: Canis lepophagus at Hagerman Fossil Beds National Monument, Idaho, USA

Prassack

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2022

J Mammal Evol

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A canid dentary is described from the Pliocene Glenns Ferry Formation at Hagerman Fossil Beds National Monument, south-central Idaho, USA. The specimen possesses traits in alliance with and measurements falling within or exceeding those of Canis lepophagus. The dentary, along with a tarsal IV (cuboid) and an exploded canine come from the base of the fossiliferous Sahara complex within the monument. Improved geochronologic control provided by new tephrochronologic mapping by the U.S. Geological Survey-National Park Service Hagerman Paleontology, Environments, and Tephrochronology Project supports an interpolated age of approximately 3.9 Ma, placing it in the early Blancan North American Land Mammal Age. It is conservatively referred to herein as Canis aff. C. lepophagus with the caveat that it is an early and robust example of that species. A smaller canid, initially assigned to Canis lepophagus and then to Canis ferox, is also known from Hagerman. Most specimens of Canis ferox, including the holotype, were recently reassigned to Eucyon ferox, but specimens from the Hagerman and Rexroad faunas were left as Canis sp. and possibly attributed to C. lepophagus. We agree that these smaller canids belong in Canis and not Eucyon but reject placing them within C. lepophagus; we refer to them here as Hagerman-Rexroad Canis. This study confirms the presence of two approximately coyote-sized canids at Hagerman and adds to the growing list of carnivorans now known from these fossil beds.

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Section: Site Descriptionmentioning

confidence: 94%

Section: Hagerman Fossil Beds National Monument (Hafo)mentioning

confidence: 99%

Maybe So, Maybe Not: Canis lepophagus at Hagerman Fossil Beds National Monument, Idaho, USA

Prassack

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2022

J Mammal Evol

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“…We used three calibration points: (1) root age between 5.7 and 11.8 MYA; 71 (2) 3.6 MYA as the minimum age for Lutra; 72 and (3) 3.8 MYA as the minimum age for Lontra. 73…”

Section: Lead Contactmentioning

confidence: 99%

Phylogenomics of the world’s otters

Ferran¹,

Figueiró²,

Trindade³

et al. 2022

Current Biology

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“…However, if Lontra occurred in North American deposits since the Pliocene (Prassack 2016), placing the first appearance of Lutra in a chronological framework is on the contrary complicated by the use of the genus either as a waste-basket taxon, or in sensu lato, to allocate specimens of uncertain affinities and/or Lutra-like morphology (Willemsen 1992; Geraads et al 2015;Cherin et al 2016). In Handling Editor: Irina Ruf.…”

Section: Introductionmentioning

confidence: 99%

Rediscovering Lutra lutra from Grotta Romanelli (southern Italy) in the framework of the puzzling evolutionary history of Eurasian otter

Mecozzi

Iannucci

Bona

et al. 2021

PalZ

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A river otter hemimandible has been rediscovered during the revision of the historical collections of G.A. Blanc from Grotta Romanelli, complementing the ongoing multidisciplinary research fieldwork on the site. The specimen, recovered from the level G (“terre rosse”; early Late Pleistocene or late Middle Pleistocene), is here assigned to Lutra lutra. Indeed, morphological and morphometric comparisons with other Quaternary Lutrinae fossils from Europe allow to exclude an attribution to the relatively widespread and older Lutra simplicidens, characterized by distinctive carnassial proportions. Differences with Cyrnaonyx antiqua, which possessed a more robust, shellfish-feeding dentition, support the view of a successful niche repartition between the two species during the late Middle to Late Pleistocene of Europe. The occurrence of Lutra lutra from the “terre rosse” of Grotta Romanelli suggests deep modifications of the landscapes due to the ecological adaptation of the taxon, and indicates that the Eurasian otter spread into Europe at the Middle–Late Pleistocene transition.

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Lontra weiri, sp. nov., a Pliocene river otter (Mammalia, Carnivora, Mustelidae, Lutrinae) from the Hagerman Fossil Beds (Hagerman Fossil Beds National Monument), Idaho, U.S.A.

Cited by 9 publications

References 30 publications

Maybe So, Maybe Not: Canis lepophagus at Hagerman Fossil Beds National Monument, Idaho, USA

Maybe So, Maybe Not: Canis lepophagus at Hagerman Fossil Beds National Monument, Idaho, USA

Phylogenomics of the world’s otters

Rediscovering Lutra lutra from Grotta Romanelli (southern Italy) in the framework of the puzzling evolutionary history of Eurasian otter

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