“On the Fossil Horses of America,” <i>Proceedings of the Academy of Natural Sciences of Philadelphia</i> (1847)

Leidy, Joseph

doi:10.7135/upo9780857286512.019

Cited by 4 publications

(8 citation statements)

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“…Synonymy. Oromys aesopi (Leidy, 1853); Hydrochoerus aesopi (Leidy, 1856); Hydrochoerus magnus (Gervais and Ameghino, 1880); Hydrochoerus robustus (Leidy, 1887); Hydrochoerus holmesi (Simpson, 1928); Neochoerus magnus (Kraglievich, 1930); Neochoerus robustus (Kraglievich, 1930); Prohydrochoerus sirasakae (Spillmann, 1941); Protohydrochoerus schirasakae [sic] (Spillmann, 1948); Neochoerus (Neochoerus) sirasakae (Hoffstteter, 1952); Neochoerus sirasakae (Mones, 1975b); Neochoerus pinckneyi (Mones, 1991).…”

Section: Resultsmentioning

confidence: 99%

Description of the Neochoerus specimens from the Late Pleistocene (Rancholabrean) of Chiapas, and comments on the taxonomic identity of the fossil capybaras from other Mexican localities

Carbot-Chanona

Eng-Ponce

Pérez

2020

BOL. SOC. GEOL. MEX.

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Aquí describimos los restos de N. aesopi encontrados en los sedimentos del Pleistoceno tardío que afloran en la localidad Los Mangos, en el Municipio de Villaflores, Chiapas, México. También, reexaminamos el material de capibaras de Jalisco y Puebla (referido como Hydrochoerus sp. y Neochoerus sp., respectivamente). Las características morfológicas mandibulares y dentales, así como las medidas de los especímenes examinados de Jalisco y Puebla permiten referirlos también como N. aesopi. La identificación definitiva de esta especie amplía su rango geográfico en América del Norte.

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Section: Resultsmentioning

confidence: 99%

Description of the Neochoerus specimens from the Late Pleistocene (Rancholabrean) of Chiapas, and comments on the taxonomic identity of the fossil capybaras from other Mexican localities

Carbot-Chanona

Eng-Ponce

Pérez

2020

BOL. SOC. GEOL. MEX.

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“…For this study, ingroup taxa originated from the results of the valid species analyses and include: Hoplophoneus primaevus (Leidy 1851), H. occidentalis (Leidy 1866), H. dakotensis (Hatcher 1895), H. oharrai (Jepsen 1926), H. sicarius (Sinclair & Jepsen 1927), H. cerebralis (Cope 1880a), Nimravus brachyops (Cope 1878), Pogonodon platycopis (Cope 1879c), P. davisi (Merriam 1906), Dinictis felina (Leidy 1854), Dinaelurus crassus (Eaton 1922), and Nanosmilus kurteni (Martin 1992). Hoplophoneus dakotensis was partially scored from literature, due to inaccessibility of specimens (Jepsen 1933;Peigné 2003).…”

Section: Ingroup Taxamentioning

confidence: 99%

“…Referred Taxa "Machairodus" primaevus (Leidy 1851) "Drepanodon" primaevus (Leidy 1857) "Machaerodus" oreodontis (Cope 1873) Hoplophoneus oreodontis (Cope 1874) Hoplophoneus primaevus (Cope 1879b) Hoplophoneus robustus (Adams 1896a) Hoplophoneus insolens (Adams 1896a) Hoplophoneus marshi (Thorpe 1920) Hoplophoneus latidens (Thorpe 1920) Hoplophoneus molossus (Thorpe 1920) Hoplophoneus mentalis (Sinclair 1921) Hoplophoneus primaevus primaevus (Hough 1949) Hoplophoneus primaevus latidens (Hough 1949) Type-USNM 99, cranium and partial dentary. Diagnosis -Characters of Hoplophoneus plus: sutural contact absent between the lacrimal and jugal; medial ridge of palate present; postglenoid foramen present; posterior lip of the glenoid socket projects more ventrally than the anterior lip; oblique angle between the braincase, disregarding the sagittal crest, and axial plane of the cranium; anterior dentary position elevate above cheek tooth row; vertically orientated posterior border of coronoid process; deep genial flange between 32 and 50% of total dentary length; mesial-distal length of C1 less than that of P4; ratio of height between P3 and P4 0.50 to 0.70; p3 lower than p4; trigonid proportion of m1, 88% or greater.…”

Section: Hoplophoneus Primaevus (Leidy 1851)mentioning

confidence: 99%

“…Referred Taxa "Drepanodon"/"Machairodus" occidentalis (Leidy 1866) Hoplophoneus occidentalis (Cope 1879b) Dinotomius atrox (Williston 1895) Type-ANSP 11074, left dentary fragment with p4. Diagnosis -Characters of Hoplophoneus plus: sutural contact absent between the lacrimal and jugal; medial ridge of palate present; postglenoid foramen absent; posterior lip of the glenoid socket projects more ventrally than the anterior lip; oblique angle between the braincase, disregarding the sagittal crest, and axial plane of the cranium; anterior dentary position elevate above cheek tooth row; vertically orientated posterior border of coronoid process; deep genial flange between 32 and 50% of total dentary length; mesial-distal length of C1 less than that of P4; ratio of height between P3 and P4 0.50 to 0.70; p3 lower than p4; trigonid proportion of m1, 88% or greater.…”

Section: Hoplophoneus Occidentalis (Leidy 1866)mentioning

confidence: 99%

“…Diagnosis -Characters of Hoplophoneus plus: sutural contact absent between the lacrimal and jugal; medial ridge of palate present; postglenoid foramen absent; posterior lip of the glenoid socket projects more ventrally than the anterior lip; oblique angle between the braincase, disregarding the sagittal crest, and axial plane of the cranium; anterior dentary position elevate above cheek tooth row; vertically orientated posterior border of coronoid process; deep genial flange between 32 and 50% of total dentary length; mesial-distal length of C1 less than that of P4; ratio of height between P3 and P4 0.50 to 0.70; p3 lower than p4; trigonid proportion of m1, 88% or greater. Discussion-The first mention of Hoplophoneus occidentalis was in the minutes of an Academy of Natural Sciences of Philadelphia meeting, where Leidy (1866) characterizes "…a new sabretoothed tiger, under the name of Drepanodon or Machairodus occidentalis, a species larger than its contemporary the D. primaevus" (p.345). However, further description of this specimen did not occur until three years later (Leidy 1869).…”

Section: Hoplophoneus Occidentalis (Leidy 1866)mentioning

confidence: 99%

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Peer Review #2 of "Taxonomic and systematic revisions to the North American Nimravidae (Mammalia, Carnivora) (v0.1)"

Werdelin¹

2016

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The Nimravidae is a family of extinct carnivores commonly referred to as "false sabertooth cats". Since their initial discovery, they have prompted difficulty in taxonomic assignments and number of valid species. Past revisions have only examined a handful of genera, while recent advances in cladistic and morphometric analyses have granted us additional avenues to answering questions regarding our understanding of valid nimravid taxa and their phylogenetic relationships. To resolve issues of specific validity, the phylogenetic species concept (PSC) was utilized to maintain consistency in diagnosing valid species, while simultaneously employing character and linear morphometric analyses for confirming the validity of taxa. Determined valid species and taxonomically informative characters were then employed in two differential cladistic analyses to create competing hypotheses of interspecific relationships. The results suggest the validity of twelve species and six monophyletic genera. The first in depth reviews of Pogonodon and Dinictis returned two valid species (P. platycopis, P. davisi) for the former, while only one for the latter (D. felina). The taxonomic validity of Nanosmilus is upheld. Two main clades with substantial support were returned for all cladistic analyses, the Hoplophoneini and Nimravini, with ambiguous positions relative to these main clades for the European taxa: Eofelis, Dinailurictis bonali, and Quercylurus major; and the North American taxa Dinictis and Pogonodon. Eusmilus is determined to represent a non-valid genus for North American taxa, suggesting non-validity for Old World nimravid species as well. Finally, Hoplophoneus mentalis is found to be a junior synonym of Hoplophoneus primaevus, while the validity of Hoplophoneus oharrai is reinstated.

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New Discovery of Hipparion theobaldi Skull from the Late Miocene of Padhri, District Jhelum, Punjab, Pakistan and Associated Mammalian Fossil Assemblage

Samiullah

Draz

Yasin

et al. 2022

Acta Geologica Sinica (Eng)

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A fossil-bearing locality near Padhri village, Dhok Pathan, 55 km away from the tehsil Dina, Jhelum District, in the Potwar Plateau, Middle Siwaliks, Punjab, northern Pakistan, is significantly rich in mammalian fossils. This site has provided an abundant mammalian fossil fauna of Late Miocene age from the Dhok Pathan Formation (Fm.). The recovered material belongs to four families: Equidae (horses), Rhinocerotidae (rhinos), Bovidae (cows), and Suidae (pigs). We discovered a new skull of hipparionine Hipparion theobaldi from this locality along with 22 specimens from the associated assemblage of fossil mammals. The recovered material includes seven other species: the aceratheriine Chilotherium intermedium, boselaphines Tragoportax punjabicus, Selenoportax vexillarius, Pachyportax latidens, the antelope Gazella lydekkeri and suinine Propotamochoerus hysudricus. The specimens are isolated teeth, fragments of maxilla, mandibles and horn cores. The Dhok Pathan Fm. is generally composed of claystone, siltstone and sandstone beds and, based on the mammalian fauna, the Padhri fossil locality is dated as Late Miocene. Thi99s formation was deposited in a subtropical paleoenvironment and the predominance of fossil bovids indicates extremely moist conditions with small but frequent standing water bodies.

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“On the Fossil Horses of America,” Proceedings of the Academy of Natural Sciences of Philadelphia (1847)

Cited by 4 publications

References 0 publications

Description of the Neochoerus specimens from the Late Pleistocene (Rancholabrean) of Chiapas, and comments on the taxonomic identity of the fossil capybaras from other Mexican localities

Description of the Neochoerus specimens from the Late Pleistocene (Rancholabrean) of Chiapas, and comments on the taxonomic identity of the fossil capybaras from other Mexican localities

Peer Review #2 of "Taxonomic and systematic revisions to the North American Nimravidae (Mammalia, Carnivora) (v0.1)"

New Discovery of Hipparion theobaldi Skull from the Late Miocene of Padhri, District Jhelum, Punjab, Pakistan and Associated Mammalian Fossil Assemblage

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