{"id":37102,"date":"2026-06-07T16:38:29","date_gmt":"2026-06-07T19:38:29","guid":{"rendered":"http:\/\/localhost:8012\/GabrielPaladino.com\/2026\/06\/07\/epimayaites-species\/"},"modified":"2026-06-07T16:39:07","modified_gmt":"2026-06-07T19:39:07","slug":"epimayaites-species","status":"publish","type":"post","link":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/2026\/06\/07\/epimayaites-species\/","title":{"rendered":"Epimayaites species"},"content":{"rendered":"
\n <\/p>\n

Epimayaites<\/i><\/b> is a genus of ammonites from the Late Jurassic, specifically the Oxfordian stage, approximately 163 to 157 million years ago. Its fossils are found in the marine limestones and marls of southwestern Madagascar \u2014 one of the richest Oxfordian ammonite sites in the Indian Ocean region. Specimens of Epimayaites<\/i> are widely used by geologists to date and correlate rock layers of this age.<\/p>\n

The shell is moderately tightly coiled, with a narrow central opening and a whorl section that is taller than it is wide. The ribbing is dense and fine, with primary ribs originating near the inner edge of the shell and sweeping forward across the outer surface. Like all members of the subfamily Mayaitinae, this genus is known exclusively from rocks deposited around the ancient Indian Ocean, and likely showed differences in size or form between males and females, though this aspect of its biology remains poorly understood.<\/p>\n

Scientific classification:<\/b>
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Sphaeroceratidae
Subfamily: Mayaitinae
Genus: Epimayaites<\/i>
Species: Epimayaites<\/i> sp.<\/p>\n

Era:<\/b> Mesozoic
Period:<\/b> Jurassic (Oxfordian, ~163\u2013157 Ma)
Origin:<\/b> Madagascar (precise locality unknown)
Specimen diameter:<\/b> 64 mm<\/p>\n

The diversity of Epimayaites<\/i> and related genera in southwestern Madagascar was extensively documented by the French paleontologist Maurice Collignon in his Atlas des Fossiles Caract\u00e9ristiques de Madagascar<\/i> (1959), which remains the standard reference for identifying these ammonites. Comparison of this specimen with Collignon’s type material points to a possible affinity with E. transiens<\/i> (Waagen, 1875), E. axonoides<\/i> var. rigida<\/i> Collignon, 1959, or E.<\/i> aff. falcoides<\/i> Spath, 1928, though a definitive species identification is not possible without knowing the precise location and rock layer from which it was collected.<\/p>\n

Photo Taken: June 05, 2026
\n High resolution<\/a>
\n Flickr Gallery<\/a>\n <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Epimayaites is a genus of ammonites from the Late Jurassic, specifically the Oxfordian stage, approximately 163 to 157 million years ago. Its fossils are found in the marine limestones and marls of southwestern Madagascar \u2014 one of the richest Oxfordian ammonite sites in the Indian Ocean region. Specimens of Epimayaites are widely used by geologists […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[2],"tags":[521,524,526,640,16911,1568,1578,1584,2743,2744,3275,3276,3374,3375,3413,16915,16903,16893,16913,16914,16894,16912,4731,4741,4809,4838,5202,5204,5206,5352,5354,16904,16900,6694,16906,6941,7363,7703,16902,7846,7910,16901,8053,16909,16910,16895,8274,16898,8451,8452,8907,9308,9366,16897,9559,9564,16905,10693,11211,11814,16908,11926,16899,12280,12281,16896,12330,12459,12506,13549,13587,16907,14331,14333],"class_list":["post-37102","post","type-post","status-publish","format-standard","hentry","category-related-posts","tag-ammonite","tag-ammonitida","tag-ammonoidea","tag-animalia","tag-atlas-des-fossiles-caracteristiques-de-madagascar","tag-bilateria","tag-biodiversity","tag-biostratigraphy","tag-cephalopod","tag-cephalopoda","tag-collectable","tag-collection","tag-conchologia","tag-conchology","tag-conquiliologia","tag-conquiliology","tag-correlation","tag-epimayaites","tag-epimayaites-axonoides-rigida","tag-epimayaites-falcoides","tag-epimayaites-sp","tag-epimayaites-transiens","tag-eubilateria","tag-eukaryota","tag-evolution","tag-extinct","tag-fosil","tag-fossil","tag-fossilised","tag-gabriel-paladino-ibanez","tag-gabrielpaladino-com","tag-geochronology","tag-indian-ocean","tag-invertebrate","tag-involute","tag-jurassic","tag-late-jurassic","tag-lophotrochozoa","tag-madagascan-ammonite","tag-madagascar","tag-malacology","tag-malagasy-ammonite","tag-marine","tag-marine-limestone","tag-maurice-collignon","tag-mayaitinae","tag-mesozoic","tag-middle-oxfordian","tag-mollusc","tag-mollusca","tag-nektonic","tag-opisthokonta","tag-ornamentation","tag-oxfordian","tag-paleoenvironment","tag-paleontology","tag-planispiral","tag-protostomia","tag-ribbing","tag-seashell","tag-sexual-dimorphism","tag-shell","tag-southwestern-madagascar","tag-species","tag-specimen","tag-sphaeroceratidae","tag-spiralia","tag-stephanoceratoidea","tag-stratigraphy","tag-umbilicus","tag-upper-jurassic","tag-whorl-section","tag-zoologia","tag-zoology","has-post-thumbnail"],"tags_input":"ammonite,ammonitida,ammonoidea,animalia,Atlas des Fossiles Caract\u00e9ristiques de Madagascar,bilateria,biodiversity,biostratigraphy,cephalopod,cephalopoda,collectable,collection,conchologia,conchology,conquiliologia,conquiliology,correlation,Epimayaites,Epimayaites axonoides rigida,Epimayaites falcoides,Epimayaites sp.,Epimayaites transiens,eubilateria,eukaryota,evolution,extinct,fosil,fossil,fossilised,Gabriel Paladino Iba\u00f1ez,gabrielpaladino.com,geochronology,Indian Ocean,invertebrate,involute,jurassic,Late Jurassic,lophotrochozoa,Madagascan ammonite,madagascar,malacology,Malagasy ammonite,marine,marine limestone,Maurice Collignon,Mayaitinae,mesozoic,Middle Oxfordian,mollusc,mollusca,nektonic,opisthokonta,ornamentation,Oxfordian,paleoenvironment,paleontology,planispiral,protostomia,ribbing,seashell,sexual dimorphism,shell,Southwestern Madagascar,species,specimen,Sphaeroceratidae,spiralia,Stephanoceratoidea,stratigraphy,umbilicus,Upper Jurassic,whorl section,zoologia,zoology","jetpack_shortlink":"https:\/\/wp.me\/phjlBv-9Eq","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":32005,"url":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/2025\/07\/23\/ataxioceras-discobolum\/","url_meta":{"origin":37102,"position":0},"title":"Ataxioceras discobolum","author":"Gabriel Paladino Ib\u00e1\u00f1ez","date":"July 23, 2025","format":false,"excerpt":"Ataxioceras discobolum is a species of ammonite from the Late Jurassic, specifically the Unter\u2011Kimmeridgian (approximately 155\u2013153\u202fMa). 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Scientific classification:Kingdom: AnimaliaPhylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: AmmonitidaSuperfamily: AmaltheoideaFamily: AmaltheidaeSubfamily: PleuroceratinaeGenus: PleurocerasSpecies: Pleuroceras sp. Era: MesozoicPeriod: Jurassic (Pliensbachian, ~190\u2013183 Ma)Origin: Bavaria (Bayern), GermanySpecimen size: 45 mm diameter Key species\u2026","rel":"","context":"In "Related posts"","block_context":{"text":"Related posts","link":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/category\/related-posts\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/posts\/37102","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/comments?post=37102"}],"version-history":[{"count":1,"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/posts\/37102\/revisions"}],"predecessor-version":[{"id":37103,"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/posts\/37102\/revisions\/37103"}],"wp:attachment":[{"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/media?parent=37102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/categories?post=37102"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pelecyphora.ddns.net:60123\/GabrielPaladino.com\/wp-json\/wp\/v2\/tags?post=37102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}