New Late Miocene Alilepus (Lagomorpha, Mammalia) from Eastern Europe - a new light on the evolution of the earliest Old World Leporinae

Čermák, Stanislav; Angelone, Chiara; Sinitsa, Maxim V.

doi:10.3140/bull.geosci.1523

Cited by 17 publications

(11 citation statements)

References 22 publications

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“…Dental terminology, metrics, and morphotype classification used to describe teeth follow Sych (1965), Palacios and López Martínez (1980), Fladerer (1987), Fladerer and Reiner (1996), and Čermák et al (2015). The original scheme of P2 morphotypes by Fladerer and Reiner (1996), originally used for Hypolagus , was extended here by adding the BMR-morphotype “C” (characterized by very long hypoflexus) in order to be applicable also to advanced/modern taxa of Leporidae.…”

Section: Methodsmentioning

confidence: 99%

“…All length dimensions are given in millimeters (mm) and weight estimates in grams (g). We reserve the formal term ‘crown Leporinae’ for the group of extant hares and rabbits; the formal term ‘Leporinae’, or informally ‘leporines’, for the leporid group, including Alilepus Dice, 1931 and presumed descendants; and fossil genera closely related to that radiation are ‘stem Leporidae’ or informally ‘modern leporids’ (Flynn et al, 2014; Čermák et al, 2015). For geologically older genera distantly related to the modern radiation, we informally use the term ‘leporid,’ or simply ‘lagomorph.’ Biostratigraphic terminology follows Palombo (2009).…”

Section: Methodsmentioning

confidence: 99%

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Systematics and paleobiogeography of Sardolagus obscurus n. gen. n. sp. (Leporidae, Lagomorpha) from the early Pleistocene of Sardinia

Angelone¹,

Čermák²,

Moncunill-Solé³

et al. 2018

J. Paleontol.

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The extreme rareness of Sardinian fossil sites older than Middle and Late Pleistocene makes the Monte Tuttavista karst complex (E Sardinia, Italy) very important. Remarkable lagomorph material, recovered from several fissure infillings of Monte Tuttavista referable to the Capo Figari/Orosei 1 and Orosei 2 faunal sub-complexes (early Pleistocene, ~2.1/1.9–1.1 Ma), allowed us to describe a new endemic insular leporid, Sardolagus obscurus n. gen. n. sp. The new taxon is characterized by a peculiar combination of an advanced p3 (Lepus-type) and a primitive P2 lacking deep flexa. The origin of such discrepancy, unprecedented among continental and insular endemic European leporids, is unclear. It could be the result of: (1) an independent evolution of p3 from an ancestor bearing the primitive P2/p3 (e.g., Alilepus, Hypolagus), or (2) a selective reversal morphocline from an Oryctolagus/Lepus-like leporine. The lack of data about the phylogenetic origin of the new taxon makes any inference about its possible arrival to Sardinia problematic. Crossing the European leporid records and evidence of migrations to Sardinia, we hypothesize three possible ages in which the ancestor of Sardolagus obscurus could have arrived in Sardinia, restricted to the late Miocene–early/late Pliocene (~8–3.6 Ma). The phylogenetic relationship between Sardolagus obscurus n. gen. n. sp. and the oldest Sardinian leporid, recorded from Capo Mannu D1 and dated at the early/late Pliocene boundary (~3.6 Ma), is unclear at present, however it is quite likely that they pertain to the same lineage.UUID: http://zoobank.org/ca8e0023-7c9d-4b00-a294-d166c37c5c71

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Systematics and paleobiogeography of Sardolagus obscurus n. gen. n. sp. (Leporidae, Lagomorpha) from the early Pleistocene of Sardinia

Angelone¹,

Čermák²,

Moncunill-Solé³

et al. 2018

J. Paleontol.

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“…In this genus the presence of mesofossettid, but significantly less common, can also be observed in A. longisinuosus (Lufeng, Yunnan, China;MN12/13;Qi et al, 2006) and sporadically also in A. annectens (Ertemte 2, China; MN13; Qiu, 1987). Among other Eurasiatic leporid taxa the mesofossettid shows a high incidence only in Pliopentalagus species; within the latest Miocene -late Pliocene lineage P. huainanensis Jin, 2004-P. dajushanensis Tomida and Jin, 2009-P. anhuiensis Tomida and Jin, 2009 the p3 mesofossettid is gradually reduced in relation to the mesoflexid (in more detail in Tomida and Jin, 2009;Čermák et al, 2015). The only European record of this genus is the early Pliocene (MN15) P. dietrichi (Fejfar, 1961), which p3 shows an exclusively PR1 morphotype.…”

Section: The P3 Mesofossettid In Leporidae: An Unsolved Mysterymentioning

confidence: 99%

“…In Leporinae, a predisposition to development of posterolingual tooth structures together with anteroflexids is significantly higher. These structures appear across the Leporinae lineage in various combinations and ratios and often are taxonomically discriminative for numerous species and genera (Hibbard, 1963;White, 1991;Čermák et al, 2015).…”

Section: The P3 Mesofossettid In Leporidae: An Unsolved Mysterymentioning

confidence: 99%

A new early Pliocene locality Tepe Alagöz (Turkey) reveals a distinctive tooth phenotype of Trischizolagus (Lagomorpha, Leporidae) in Asia Minor

Čermák

Joniak

Rojay

2019

Palaeontol Electron

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Pliocene leporid remains are very rare in Anatolia, occurring sporadically only in a few localities. The new locality of Tepe Alagöz (Çankırı Basin) is the first reported Pliocene locality in Turkey with sufficiently rich leporid material for determination of morphometric variability in taxonomically important teeth. The locality also yielded remains of the rodents Occitanomys debruijni, Allocricetus cf. ehiki, Pseudomeriones hansi, and an ochotonid lagomorph. The assemblage suggests an early Pliocene age (MN14) of about the same age or somewhat older than that in İğdeli (Sivas Basin). The medium-sized leporid is characterized by p3 of almost exclusively a "Nekrolagus" pattern with narrow anteroconid and very variable anteroflexid. It is associated with P2 bearing short paraflexus, long hypoflexus, and moderately developed mesoflexus, and I1 which is anteroposteriorly shortened with a shallow, V-shaped, cement-free anterior notch. The leporid was co-identified with Trischizolagus gambariani described from the coeval locality Nurnus (Armenia). A lectotype designation and emended diagnosis of the species are provided in this paper. The available fossil record of Trischizolagus indicates that the northwestern part of the peri-Paratethyan area was inhabited by T. dumitrescuae, but to the south and southeast by distinct T. gambariani. The only other proven finding of Trischizolagus from Anatolia was reported from Tozaklar (MN15), but due to the scarcity of fossil material a definite species determination is impossible.

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“…Описание новых материалов (коллекция ПИН, Москва) приводится ниже. Терминология и морфотипы зубных структур по [3,4] В эволюции разных линий рода Lepus основные изменения формы и строения P 3 были связаны с увеличением или уменьшением длины и ширины зуба в сочетании с расширением или сужением лингвального антероконида [13]. Указанные преобразования происходили в основном в среднем-позднем плейстоцене, но исследование раннеплейстоценовых материалов должно прояснить начальные этапы этих процессов.…”

unclassified

The CoOccurence of Hyoplagus and Lepus (Leporidae, Lagomorpha) in the early pleistocene of Crimea

Лопатин

2019

Доклады Академии наук

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New fossils of Leporidae from the Lower Pleistocene deposits of the Taurida Cave in the central Crimea (Belogorsk district, Zuya village) are referred to Hypolagus brachygnathus (Kormos, 1930) and Lepus sp. Cooccurrence of Hypolagus and Lepus in the Early Pleistocene of Crimea is significant in terms of the question of the first appearance of Lepus in Europe, as well as the hypothesis of the competition with hares as one of the possible causes of extinction of Hypolagus.

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New Late Miocene Alilepus (Lagomorpha, Mammalia) from Eastern Europe - a new light on the evolution of the earliest Old World Leporinae

Cited by 17 publications

References 22 publications

Systematics and paleobiogeography of Sardolagus obscurus n. gen. n. sp. (Leporidae, Lagomorpha) from the early Pleistocene of Sardinia

Systematics and paleobiogeography of Sardolagus obscurus n. gen. n. sp. (Leporidae, Lagomorpha) from the early Pleistocene of Sardinia

A new early Pliocene locality Tepe Alagöz (Turkey) reveals a distinctive tooth phenotype of Trischizolagus (Lagomorpha, Leporidae) in Asia Minor

The CoOccurence of Hyoplagus and Lepus (Leporidae, Lagomorpha) in the early pleistocene of Crimea

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