The body mass of Paludotona (Lagomorpha, Mammalia): first approach to the ecology of the last stem lagomorph (Tusco-Sardinia palaeobioprovince, Late Miocene)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F22%3A00557112" target="_blank" >RIV/67985831:_____/22:00557112 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.paleoitalia.it/bollettino-spi/bspi-vol-611/" target="_blank" >https://www.paleoitalia.it/bollettino-spi/bspi-vol-611/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4435/BSPI.2022.01" target="_blank" >10.4435/BSPI.2022.01</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The body mass of Paludotona (Lagomorpha, Mammalia): first approach to the ecology of the last stem lagomorph (Tusco-Sardinia palaeobioprovince, Late Miocene)

Popis výsledku v původním jazyce

Paludotona, an insular lagomorph genus endemic of the Tusco-Sardinia palaeobioprovince (~8.3-6.7 Ma), is the last representative of the heterogeneous basal group of early lagomorphs. It post-dates the last appearance datum of stem lagomorphs to 6.7 Ma, i.e., by 2.5 my with respect to the previous datum. This makes Paludotona, during the Late Miocene, a living fossil thriving in an insular refugium. We have a record of only the last 15% or less of the temporal distribution range of Paludotona: in fact Paludotona developed in isolation sensu lato as a ghost lineage for at least 14 my. Paludotona matched the pattern followed by small mammals in insular environments, acquiring a gigantic size with respect to continental ancestors. Its body mass (BM) is here estimated in ~1100 g, i.e., three to five times the BM of the taxa here taken as reference for European MP28-MN1 stem lagomorphs, the group from which Paludotona likely stemmed. The reasons for such an enormous BM increase are multiple and interconnected: synecological factors s.l., lower extrinsic mortality, changes in size and degree/pattern of fragmentation of the area of the insular palaeobioprovince, and successive climate changes (which caused a rapid evolutionary pulse followed by a relative stasis following the pattern of Mein’s biphasic model). At any rate, through BM estimation and morphological observation we discuss some biological traits of Paludotona: there is evidence of increased lifespan (though, at present, not quantitatively determined), and we suspect a change in posture and locomotion caused by the noticeable BM increase.

Název v anglickém jazyce

The body mass of Paludotona (Lagomorpha, Mammalia): first approach to the ecology of the last stem lagomorph (Tusco-Sardinia palaeobioprovince, Late Miocene)

Popis výsledku anglicky

Paludotona, an insular lagomorph genus endemic of the Tusco-Sardinia palaeobioprovince (~8.3-6.7 Ma), is the last representative of the heterogeneous basal group of early lagomorphs. It post-dates the last appearance datum of stem lagomorphs to 6.7 Ma, i.e., by 2.5 my with respect to the previous datum. This makes Paludotona, during the Late Miocene, a living fossil thriving in an insular refugium. We have a record of only the last 15% or less of the temporal distribution range of Paludotona: in fact Paludotona developed in isolation sensu lato as a ghost lineage for at least 14 my. Paludotona matched the pattern followed by small mammals in insular environments, acquiring a gigantic size with respect to continental ancestors. Its body mass (BM) is here estimated in ~1100 g, i.e., three to five times the BM of the taxa here taken as reference for European MP28-MN1 stem lagomorphs, the group from which Paludotona likely stemmed. The reasons for such an enormous BM increase are multiple and interconnected: synecological factors s.l., lower extrinsic mortality, changes in size and degree/pattern of fragmentation of the area of the insular palaeobioprovince, and successive climate changes (which caused a rapid evolutionary pulse followed by a relative stasis following the pattern of Mein’s biphasic model). At any rate, through BM estimation and morphological observation we discuss some biological traits of Paludotona: there is evidence of increased lifespan (though, at present, not quantitatively determined), and we suspect a change in posture and locomotion caused by the noticeable BM increase.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10506 - Paleontology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bolletino della Societa Paleontologica Italiana

ISSN

0375-7633

e-ISSN

—

Svazek periodika

61

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

10

Strana od-do

61-70

Kód UT WoS článku

000913178400003

EID výsledku v databázi Scopus

2-s2.0-85133360184