Astrohippus: Difference between revisions

Astrohippus; Temporal range: 16.3–4.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N Barstovian to Late Hemphillian
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	Equidae
Subfamily:	Equinae
Tribe:	Equini
Genus:	†Astrohippus; Quinn, 1955
Species
	†A. ansae; †A. stockii (syn. A. albidens);

Browse history interactively

← Previous edit

Content deleted Content added

VisualWikitext

Inline

Latest revision as of 10:51, 22 October 2024

Astrohippus ("Star horse") is an extinct member of the Equidae tribe Equini, the same tribe that contains the only living equid genus, Equus. Fossil remains have been found in the central United States, Florida, and the Mexican states of Chihuahua, Jalisco, and Guanajuato. The fossils date in time from the oldest dating from the Barstovian in the Miocene to the youngest dating in the Hemphillian faunal stage of the early Pliocene.^[1]

Based on study of the tooth morphology it is considered unlikely that Astrohippus could be an ancestor of modern horses^{[dubious – discuss]}, with the most likely ancestor of Astrohippus being Pliohippus.^[2]

The species Astrohippus ansae was originally described by W. D. Matthew and R. A. Stirton based on several cheek teeth found in the Coffee Ranch quarry, Hemphill County, Texas. This quarry has produced the remains of six other equid genera including Dinohippus and Nannippus.^[3] Astrohippus stockii was described from the Yepomera locality in Chihuahua, Mexico, by J.F. Lance in 1950 as Pliohippus stockii.^[1] The species was moved to Astrohippus five years later by Quinn.^[1] The species Astrohippus albidens was named by O. Mooser in 1965 from Mexico, the taxon was reassigned to the genus Dinohippus in 1988 by T. S. Kelly and E. B. Lander.^[1] In 1998 A. stockii and A. albidens were combined by T. S. Kelly, with the older A. stockii name being retained and A. albidens becoming a junior synonym.^[1]

Both species of Astrohippus have been reported to occur in the Ocote Local Fauna of Guanajuato, Mexico by O. Mooser in 1973.^[4]

References

^ ^a ^b ^c ^d ^e ^f The Paleobiology Database 1/21/09 ^{[dead link]}
^ MacFadden, B. J. (1984). "Astrohippus and Dinohippus". J. Vert. Paleon. 4(2):273–283.
^ http://paleodb.org/cgi-bin/bridge.pl?action=displayCollectionDetails&collection_no=18097&is_real_user=1Coffee Ranch Quarry at the Paleobiology Database 1/2109 Archived 2012-10-12 at the Wayback Machine
^ Mooser, O. 1973 "Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico" The Southwestern Naturalist 18(3):257–268

[PBDBastrohippus-1] ^ ^a ^b ^c ^d ^e ^f The Paleobiology Database 1/21/09 ^{[dead link]}

[MacFadden84-2] MacFadden, B. J. (1984). "Astrohippus and Dinohippus". J. Vert. Paleon. 4(2):273–283.

[PBDCoffee-3] ttp://paleodb.org/cgi-bin/bridge.pl?action=displayCollectionDetails&collection_no=18097&is_real_user=1Coffee Ranch Quarry at the Paleobiology Database 1/2109 Archived 2012-10-12 at the Wayback Machine

[Mooser73-4] Mooser, O. 1973 "Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico" The Southwestern Naturalist 18(3):257–268

[1]

[2]

[3]

[4]

@@ Line 1: / Line 1: @@
+{{Short description|Extinct genus of mammals}}
-{{italictitle}}{{Taxobox
+{{Automatic taxobox
-|fossil_range = {{fossilrange|16.3|4.9}} <small>[[Barstovian]] to Late [[Hemphillian]]</small><ref name="PBDBastrohippus">[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=42989&is_real_user=1 The Paleobiology Database 1/21/09]</ref>
+| fossil_range = {{fossilrange|16.3|4.9}} <small>[[Barstovian]] to Late [[Hemphillian]]</small><ref name="PBDBastrohippus">[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=42989&is_real_user=1 The Paleobiology Database 1/21/09] {{Dead link|date=April 2022}}</ref>
-|regnum = [[Animal]]ia
+| display_parents = 2
-|phylum = [[Chordata]]
+| taxon = Astrohippus
-|classis = [[Mammalia]]
+| authority = Quinn, 1955
-|ordo = [[Perissodactyla]]
+| subdivision_ranks = Species
-|familia = [[Equidae]]
+| subdivision =
-|subfamilia = [[Equinae]]
+*{{extinct}}''A. ansae''
-|tribus = [[Equini]]
+*{{extinct}}''A. stockii'' (syn. ''A. albidens'')
-|genus = †'''''Astrohippus'''''
+| synonyms =
-|genus_authority = Quinn, 1955
-|subdivision_ranks = Species
-|subdivision =
-*''Astrohippus ansae''
-*''Astrohippus stockii'' (syn. ''A. albidens'')
-|synonyms =
 }}
-'''''Astrohippus''''' is an extinct member of the [[Equidae]] [[Tribe (biology)|tribe]] Equini, the same tribe that contains the only living equid genus, ''[[Equus (genus)|Equus]]''. Fossil remains have been found in the central [[United States]], [[Florida]], and the [[Mexico|Mexican]] states of [[Chihuahua (state)|Chihuahua]], [[Jalisco]], and [[Guanajuato]]. The fossils date in time from the oldest dating from the [[Barstovian]] in the [[Miocene]] to the youngest dating in the [[Hemphillian]] [[faunal stage]] of the early [[Pliocene]].<ref name="PBDBastrohippus"/>
+'''''Astrohippus''''' ("Star horse") is an extinct member of the [[Equidae]] [[Tribe (biology)|tribe]] [[Equini]], the same tribe that contains the only living equid genus, ''[[Equus (genus)|Equus]]''. Fossil remains have been found in the [[central United States]], [[Florida]], and the [[Mexico|Mexican]] states of [[Chihuahua (state)|Chihuahua]], [[Jalisco]], and [[Guanajuato]]. The fossils date in time from the oldest dating from the [[Barstovian]] in the [[Miocene]] to the youngest dating in the [[Hemphillian]] [[faunal stage]] of the early [[Pliocene]].<ref name="PBDBastrohippus"/>
-Based on study of the tooth morphology it is considered unlikely that ''Astrohippus'' could be an ancestor of modern [[horse]]s, with the most likely ancestor of ''Astrohippus'' being ''[[Pliohippus]]''.<ref name="MacFadden84">MacFadden, B. J. (1984). "Astrohippus and Dinohippus". ''J. Vert. Paleon''. 4(2):273-283.</ref>
+Based on study of the tooth morphology it is considered unlikely that ''Astrohippus'' could be an ancestor of modern [[horse]]s{{Dubious|date=May 2018}}, with the most likely ancestor of ''Astrohippus'' being ''[[Pliohippus]]''.<ref name="MacFadden84">MacFadden, B. J. (1984). "Astrohippus and Dinohippus". ''J. Vert. Paleon''. 4(2):273–283.</ref>
-The species ''A. ansae'' was originally described by W.D. Matthew and R.A. Stirton based on several cheek teeth found in the [[Coffee Ranch quarry]], [[Hemphill County]], [[Texas]]. This quarry has produced the remains of six other equid genera including ''[[Dinohippus]]'' and ''[[Nannippus]]''.<ref name="PBDCoffee">http://paleodb.org/cgi-bin/bridge.pl?action=displayCollectionDetails&collection_no=18097&is_real_user=1 Coffee Ranch Quarry at the Paleobiology Database 1/2109</ref>  ''A. stockii'' was described from the [[Yepomera]] locality in Chihuahua, Mexico, by J.F. Lance in 1950 as ''Pliohippus stockii''.<ref name="PBDBastrohippus"/>  The species was moved to ''Astrohippus'' five years later by Quinn.<ref name="PBDBastrohippus"/>   The species ''A. albidens'' was named by O. Mooser in 1965 from Mexico, the species was subsequently moved to ''Dinohippus'' in 1988 by T. S. Kelly and E. B. Lander.<ref name="PBDBastrohippus"/>  In 1998 ''A. stockii'' and ''A. albidens'' were combined by T. S. Kelly, with the older ''A. stockii'' name being retained and ''A. albidens'' becoming a junior synonym.<ref name="PBDBastrohippus"/>
+The species ''[[Astrohippus ansae]]'' was originally described by [[W. D. Matthew]] and [[R. A. Stirton]] based on several cheek teeth found in the [[Coffee Ranch quarry]], [[Hemphill County]], [[Texas]]. This quarry has produced the remains of six other equid genera including ''[[Dinohippus]]'' and ''[[Nannippus]]''.<ref name="PBDCoffee">http://paleodb.org/cgi-bin/bridge.pl?action=displayCollectionDetails&collection_no=18097&is_real_user=1Coffee Ranch Quarry at the Paleobiology Database 1/2109 {{Webarchive|url=https://web.archive.org/web/20121012085608/http://paleodb.org/cgi-bin/bridge.pl?action=displayCollectionDetails&collection_no=18097&is_real_user=1 |date=2012-10-12 }}</ref> ''[[Astrohippus stockii]]'' was described from the [[Yepomera]] locality in Chihuahua, Mexico, by J.F. Lance in 1950 as ''Pliohippus stockii''.<ref name="PBDBastrohippus"/> The species was moved to ''Astrohippus'' five years later by Quinn.<ref name="PBDBastrohippus"/>  The species ''Astrohippus albidens'' was named by O. Mooser in 1965 from Mexico, the taxon was reassigned to the genus ''[[Dinohippus]]'' in 1988 by T. S. Kelly and E. B. Lander.<ref name="PBDBastrohippus"/> In 1998 ''A. stockii'' and ''A. albidens'' were combined by T. S. Kelly, with the older ''A. stockii'' name being retained and ''A. albidens'' becoming a junior synonym.<ref name="PBDBastrohippus"/>
-Both species of ''Astrohippus'' have been reported to occur in the [[Ocote Local Fauna]] of Guanajuato, Mexico by O. Mooser in 1973.<ref name="Mooser73">{{aut|Mooser, O.}} 1973 "Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico" ''The Southwestern Naturalist'' '''18'''(3):257-268</ref>
+Both species of ''Astrohippus'' have been reported to occur in the [[Ocote Local Fauna]] of Guanajuato, Mexico by O. Mooser in 1973.<ref name="Mooser73">{{aut|Mooser, O.}} 1973 "Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico Pliocene Horses of the Ocote Local Fauna, Central Plateau of Mexico" ''The Southwestern Naturalist'' '''18'''(3):257–268</ref>
 ==References==
-{{reflist}}
+{{Reflist}}
+{{Perissodactyla Genera|P.}}
 {{Equidae extinct nav}}
+{{Taxonbar|from=Q779260}}
 [[Category:Miocene horses]]
-[[Category:Pliocene odd-toed ungulates]]
+[[Category:Pliocene horses]]
+[[Category:Neogene Mexico]]
+[[Category:Neogene mammals of North America]]
+[[Category:Miocene mammals of North America]]
+[[Category:Pliocene animals of North America]]
+[[Category:Pliocene Perissodactyla]]
+[[Category:Extinct animals of Mexico]]
+[[Category:Natural history of Guanajuato]]
+[[Category:Miocene genus first appearances]]
 [[Category:Zanclean extinctions]]
-[[Category:Mammal genera]]
+[[Category:Prehistoric placental genera]]
-[[Category:Prehistoric mammals of North America]]
+[[Category:Equini]]