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| first = R. C. [[Category:Extant Rupelian first appearances]] ...

[[Category:Extant Rupelian first appearances]] [[Category:Rupelian genus first appearances]] ...

| first = Jack ...el shark]]s, [[family (biology)|family]] [[Hemigaleidae]]. It contains one extant [[species]], the [[snaggletooth shark]] (''H. elongata'') and several extin ...

=== Extant species === ...rl-access=subscription }}</ref><ref name=":0">{{Cite journal |last=Murray |first=Alison M. |last2=Kovalchuk |first2=Oleksandr M. |last3=Vernygora |first3=Ok ...

| subdivision = 2 extant, see text ...[[black-crowned night heron]].<ref name=job>{{cite book | last= Jobling | first= James A | year= 2010| title= The Helm Dictionary of Scientific Bird Names ...

|first=J. There are currently two recognized extant species in this genus, and numerous extinct species: ...

|first=Jack ...lectronica |language=en}}</ref><ref name=":0">{{Cite journal |last=Pictet |first=Antoine |last2=Chablais |first2=Jérôme |last3=Cavin |first3=Lionel |date=20 ...

...|34|0}} Early [[Oligocene]] to present<ref>{{cite journal| last =Sepkoski| first =Jack| title =A compendium of fossil marine animal genera (Chondrichthyes e [[Category:Extant Rupelian first appearances]] ...

...ree | pages=340–350}}</ref><ref name="Stull">{{cite journal | last=Stull | first=Gregory W. | last2=Qu | first2=Xiao-Jian | last3=Parins-Fukuchi | first3=Ca [[Category:Extant Rupelian first appearances]] ...

|first=Jack ''Calamus'' was first proposed as a [[monospecific genus]] in 1839 by the English [[zoologist]] [ ...

[[Category:Extant Rupelian first appearances]] ...

...efined with only 3 species.<ref name=":2">{{Cite journal |last=Brownstein |first=Chase D. |last2=Near |first2=Thomas J. |date=2025-04-25 |title=Toward a Phy === Extant species === ...

...n its family, it contains over half of the species therein. It contains 35 extant and eight extinct [[species]] to date, with likely more species yet to be d === Extant === ...

=== Extant species === ...ti |first2=Luca |last3=Carnevale |first3=Giorgio |date=2022-04-28 |title=A Rupelian Coral Reef Fish Assemblage from the Venetian Southern Alps (Berici Hills, N ...

| fossil_range = [[Rupelian|Early Oligocene]] to recent ...iving lineages (subtribes) of Marmotini. The oldest fossils are from the [[Rupelian|Early Oligocene]], more than 30 [[Myr|million years ago]] (Mya), but the ge ...

...i mice''.<ref name="Macdonald">{{cite book |editor-last=Macdonald |editor-first=David W. |title=The Encyclopedia of Mammals |publisher=Oxford University Pr ...tor3-last=McDade |editor3-first=Melissa C. |editor4-last=Hutchins |editor4-first=Michael |title=Grzimek's Animal Life Encyclopedia |volume=V&nbsp;Mammals |d ...

...54|url-access=subscription }}</ref> In addition, several fossil species in extant genera have been described, including:<ref name="Hand 1985" /> A list of extant species includes, ...

| subdivision_ranks = Extant species ''Homarus'' is one of three extant genera of clawed lobsters to show dimorphism between claws – a specialisati ...

The best-known (and first-described) species is ''A. zitteli''. Another species, ''A. giganteum'', wa ...paleontology in Egypt.<ref name=Beadnell1902>{{cite journal|last=Beadnell|first=H.G.C.|title=A preliminary note on ''Arsinoitherium zitteli'', Beadnell, fr ...

...il record from the [[Miocene]] onwards.<ref>{{Cite journal |last=Nazarkin |first=M. V. |date=2017-01-01 |title=A new horned sculpin (Pisces: Cottidae) from The Cottidae was first recognised as a taxonomic grouping by the French zoologist [[Charles Lucien ...