Occurrence of a second ichthyosaur genus (Reptilia: Ichthyosauria) in the Late Jurassic Gulf of Mexico
The forefin of the recently excavated partial skeleton of a large ichthyosaur is here described. The specimen comes from the upper Tithonian (Upper Jurassic) La Caja Formation in the south of Coahuila State. The anatomy of the forefin as well as of those currently visible parts of the skull demonstr...
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| Veröffentlicht in: | Boletín de la Sociedad Geológica Mexicana 2009-01, Vol.61 (2), p.233-238 |
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| creator | Buchy, Marie-Céline Oliva, José Guadalupe López |
| description | The forefin of the recently excavated partial skeleton of a large ichthyosaur is here described. The specimen comes from the upper Tithonian (Upper Jurassic) La Caja Formation in the south of Coahuila State. The anatomy of the forefin as well as of those currently visible parts of the skull demonstrates it likely represents an Ophthalmosauridae, in any case it is distinct fromOphthalmosaurus, possibly close toBrachypterygius. Although generally poorly diagnostic, Late Jurassic Mexican ichthyosaurian remains are relatively abundant; a single specimen was surely identified as belonging toOphthalmosaurus. The new specimen is therefore the first evidence of the presence of a second ichthyosaurian genus in the Late Jurassic Mexican Gulf. |
| doi_str_mv | 10.18268/BSGM2009v61n2a11 |
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The specimen comes from the upper Tithonian (Upper Jurassic) La Caja Formation in the south of Coahuila State. The anatomy of the forefin as well as of those currently visible parts of the skull demonstrates it likely represents an Ophthalmosauridae, in any case it is distinct fromOphthalmosaurus, possibly close toBrachypterygius. Although generally poorly diagnostic, Late Jurassic Mexican ichthyosaurian remains are relatively abundant; a single specimen was surely identified as belonging toOphthalmosaurus. 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Soc. Geol. Mex</addtitle><description>The forefin of the recently excavated partial skeleton of a large ichthyosaur is here described. The specimen comes from the upper Tithonian (Upper Jurassic) La Caja Formation in the south of Coahuila State. The anatomy of the forefin as well as of those currently visible parts of the skull demonstrates it likely represents an Ophthalmosauridae, in any case it is distinct fromOphthalmosaurus, possibly close toBrachypterygius. Although generally poorly diagnostic, Late Jurassic Mexican ichthyosaurian remains are relatively abundant; a single specimen was surely identified as belonging toOphthalmosaurus. The new specimen is therefore the first evidence of the presence of a second ichthyosaurian genus in the Late Jurassic Mexican Gulf.</description><subject>ARTÍCULOS</subject><subject>Forelimbs</subject><subject>Geology</subject><subject>Geosciences, Multidisciplinary</subject><subject>Humerus</subject><subject>Late Jurassic epoch</subject><subject>Phalanges</subject><subject>Reptiles</subject><subject>Skull</subject><subject>Spine</subject><subject>Tithonian age</subject><subject>Ulna</subject><issn>1405-3322</issn><issn>1405-3322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNpdkE1LAzEURYMoWKs_wIWQpS6m5nOauNOitdJSsLoe0vTFpowTSWbE_ntnrKi4ug8u5z44CJ1SMqCK5eryZjGeMUL0e04rZijdQz0qiMw4Z2z_z32IjlLaECJywXkPubm1TYxQWcDBYYMT2FCtsLfrer0NyTQRv0DVJHz-CG-1L725wpPf0psL7CtcrwFPTQ34oYkmJW_xuCldtziDD2_DMTpwpkxw8p199Hx3-zS6z6bz8WR0Pc0Mo0OaSUEV51LZpdI0l1IqJYRxXGu10swZDlwDByoZzy3LJTdLwRxQkLrtV5r30WC3m6yHMhSb0MSqfVgsOgFFJ6CTRAhpg1DeAnQH2BhSiuCKt-hfTdwWlBRfZov_ZlvmbMdsUh3iD8CEZm075J_IyHLz</recordid><startdate>20090101</startdate><enddate>20090101</enddate><creator>Buchy, Marie-Céline</creator><creator>Oliva, José Guadalupe López</creator><general>Sociedad Geológica Mexicana e Instituto de Geología de la UNAM</general><general>Sociedad Geológica Mexicana, A.C</general><scope>AAYXX</scope><scope>CITATION</scope><scope>GPN</scope></search><sort><creationdate>20090101</creationdate><title>Occurrence of a second ichthyosaur genus (Reptilia: Ichthyosauria) in the Late Jurassic Gulf of Mexico</title><author>Buchy, Marie-Céline ; Oliva, José Guadalupe López</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a2171-54183358cb89165558844af3998d92fa3e39e3e15236c2653ab42fe1e59d92d93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>ARTÍCULOS</topic><topic>Forelimbs</topic><topic>Geology</topic><topic>Geosciences, Multidisciplinary</topic><topic>Humerus</topic><topic>Late Jurassic epoch</topic><topic>Phalanges</topic><topic>Reptiles</topic><topic>Skull</topic><topic>Spine</topic><topic>Tithonian age</topic><topic>Ulna</topic><toplevel>online_resources</toplevel><creatorcontrib>Buchy, Marie-Céline</creatorcontrib><creatorcontrib>Oliva, José Guadalupe López</creatorcontrib><collection>CrossRef</collection><collection>SciELO</collection><jtitle>Boletín de la Sociedad Geológica Mexicana</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Buchy, Marie-Céline</au><au>Oliva, José Guadalupe López</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Occurrence of a second ichthyosaur genus (Reptilia: Ichthyosauria) in the Late Jurassic Gulf of Mexico</atitle><jtitle>Boletín de la Sociedad Geológica Mexicana</jtitle><addtitle>Bol. Soc. Geol. Mex</addtitle><date>2009-01-01</date><risdate>2009</risdate><volume>61</volume><issue>2</issue><spage>233</spage><epage>238</epage><pages>233-238</pages><issn>1405-3322</issn><eissn>1405-3322</eissn><abstract>The forefin of the recently excavated partial skeleton of a large ichthyosaur is here described. The specimen comes from the upper Tithonian (Upper Jurassic) La Caja Formation in the south of Coahuila State. The anatomy of the forefin as well as of those currently visible parts of the skull demonstrates it likely represents an Ophthalmosauridae, in any case it is distinct fromOphthalmosaurus, possibly close toBrachypterygius. Although generally poorly diagnostic, Late Jurassic Mexican ichthyosaurian remains are relatively abundant; a single specimen was surely identified as belonging toOphthalmosaurus. 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| source | Jstor Complete Legacy; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | ARTÍCULOS Forelimbs Geology Geosciences, Multidisciplinary Humerus Late Jurassic epoch Phalanges Reptiles Skull Spine Tithonian age Ulna |
| title | Occurrence of a second ichthyosaur genus (Reptilia: Ichthyosauria) in the Late Jurassic Gulf of Mexico |
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