Gyrosteus is an extinct genus of very large ray-finned fish belonging to the family Chondrosteidae. It comprises the type species, Gyrosteus mirabilis, which lived during the early Toarcian (Late Early Jurassic) in what is now northern Europe. A possible second species, "Gyrosteus" subdeltoideus, is known from otoliths. The members of the genus Gyrosteus were massive fishes, with a maximum calculated standard length of 6 metres (20 ft) to 7 metres (23 ft), and with a reported hyomandibula reaching 50 centimetres (20 in).
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| - Gyrosteus (en)
- Gyrosteus mirabilis (es)
- Gyrosteus mirabilis (it)
- Gyrosteus (nl)
- Gyrosteus (sv)
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| - El péz fósil Gyrosteus mirabilis es la única especie del género Gyrosteus, que ha sido descrita a partir de tan sólo 5 especímenes de fósil encontrados todos en Europa, y que vivieron al principio del periodo Jurásico. Su anatomía es poco conocida, si bien es casi idéntica a la de los esturiones actuales —que probablemente evolucionan a partir de él— pero con la boca en posición terminal en vez de mirar hacia abajo como en los esturiones. (es)
- Il girosteo (Gyrosteus mirabilis) è un pesce osseo estinto, appartenente agli acipenseriformi. Visse nel Giurassico inferiore (Toarciano, circa 185 - 180 milioni di anni fa) e i suoi resti fossili sono stati ritrovati in Inghilterra e in Germania. (it)
- Gyrosteus mirabilis är ett utdött släkte av störartade fiskar som levde under juraperioden. Fossil av Gyrosteus har hittats i närheten av Whitby, Storbritannien och den var runt 5 meter lång. (sv)
- Gyrosteus is an extinct genus of very large ray-finned fish belonging to the family Chondrosteidae. It comprises the type species, Gyrosteus mirabilis, which lived during the early Toarcian (Late Early Jurassic) in what is now northern Europe. A possible second species, "Gyrosteus" subdeltoideus, is known from otoliths. The members of the genus Gyrosteus were massive fishes, with a maximum calculated standard length of 6 metres (20 ft) to 7 metres (23 ft), and with a reported hyomandibula reaching 50 centimetres (20 in). (en)
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| - Lower Toarcian (Possible Bathonian record) (en)
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| - Restoration of Gyrosteus (en)
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| - * "Gyrosteus" subdeltoideus (en)
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| - Gyrosteus is an extinct genus of very large ray-finned fish belonging to the family Chondrosteidae. It comprises the type species, Gyrosteus mirabilis, which lived during the early Toarcian (Late Early Jurassic) in what is now northern Europe. A possible second species, "Gyrosteus" subdeltoideus, is known from otoliths. Fossil remains of G. mirabilis have been recovered from the Whitby Mudstone Formation, United Kingdom, and from Ahrensburg erratics assemblage in Schleswig-Holstein, northern Germany. It was mentioned but not formally described in subsequent publications and was left as a nomen nudum for more than 25 years. Then in 1889 it was featured and formally described by Arthur Smith Woodward. Gyrosteus was thought to be exclusive of the “British faunal province” and separated from the “Germanic faunal province” until the discovery of a hyomandibula in the baltic realm, mostly populated by Germanic fauna, which possibly implicates that Baltic region represented an interdigitating zone between both regions. The members of the genus Gyrosteus were massive fishes, with a maximum calculated standard length of 6 metres (20 ft) to 7 metres (23 ft), and with a reported hyomandibula reaching 50 centimetres (20 in). (en)
- El péz fósil Gyrosteus mirabilis es la única especie del género Gyrosteus, que ha sido descrita a partir de tan sólo 5 especímenes de fósil encontrados todos en Europa, y que vivieron al principio del periodo Jurásico. Su anatomía es poco conocida, si bien es casi idéntica a la de los esturiones actuales —que probablemente evolucionan a partir de él— pero con la boca en posición terminal en vez de mirar hacia abajo como en los esturiones. (es)
- Il girosteo (Gyrosteus mirabilis) è un pesce osseo estinto, appartenente agli acipenseriformi. Visse nel Giurassico inferiore (Toarciano, circa 185 - 180 milioni di anni fa) e i suoi resti fossili sono stati ritrovati in Inghilterra e in Germania. (it)
- Gyrosteus mirabilis är ett utdött släkte av störartade fiskar som levde under juraperioden. Fossil av Gyrosteus har hittats i närheten av Whitby, Storbritannien och den var runt 5 meter lång. (sv)
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