Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the Hoplocetinae

<i>Hoplocetus ritzi</i> n. sp. is a new hoplocetine physeterid from the <i>Bolboforma fragori /subfragoris</i> Zone of the middle/late Miocene mica-clay of Groß Pampau in Schleswig-Holstein, North Germany. The Hoplocetinae are known from the early Miocene to the Pliocene. Com...

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Main Author: O. Hampe
Format: Article
Language:English
Published: Pensoft Publishers 2006-02-01
Series:Fossil Record
Online Access:http://www.foss-rec.net/9/61/2006/fr-9-61-2006.pdf
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author O. Hampe
author_facet O. Hampe
author_sort O. Hampe
collection DOAJ
description <i>Hoplocetus ritzi</i> n. sp. is a new hoplocetine physeterid from the <i>Bolboforma fragori /subfragoris</i> Zone of the middle/late Miocene mica-clay of Groß Pampau in Schleswig-Holstein, North Germany. The Hoplocetinae are known from the early Miocene to the Pliocene. Comparative studies of cranial characters and tooth morphology allow an emended diagnosis of the Hoplocetinae Cabrera, 1926. Four genera, <i>Diaphorocetus, Idiorophus, Scaldicetus</i>, and <i>Hoplocetus</i> are included in this subfamily. The pattern of functional tooth wear deduced from the described <i>Hoplocetus ritzi</i> n. sp. remains is reminescent of that known from <i>Orcinus orca</i>. The hoplocetine physeterids possibly occupied the killer whale niche before the killer whales appeared during the middle Pliocene. <br><br> Mit <i>Hoplocetusritzi</i> n. sp. wird ein neuer hoplocetiner Physeteride beschrieben. Der Fund stammt aus der <i>Bolboformafragori /subfragoris</i> Zone des mittel-/obermiozänen Glimmertons von Groß Pampau in Schleswig-Holstein, Norddeutschland. Die Hoplocetinae sind vom unteren Miozän bis ins Pliozän nachgewiesen. Anhand vergleichender Untersuchungen an wenigen Schädelmerkmalen und der Zahnmorphologie gelingt eine Neudiagnose der Hoplocetinae Cabrera, 1926 und eine vorläufige Abgrenzung zwischen den als valid angesehenen Gattungen dieser Unterfamilie, <i>Diaphorocetus, Idiorophus, Scaldicetus</i> und <i>Hoplocetus</i>. Das Abkauungsmuster der Zähne von <i>Hoplocetusritzi</i> n. sp. erinnert an das des heutigen <i>Orcinusorca</i>. Möglicherweise sind die hoplocetinen Pottwale habituell den Schwertwalen, die erdgeschichtlich erstmals im mittleren Pliozän auftreten, vergleichbar. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.200600002" target="_blank">10.1002/mmng.200600002</a>
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spelling doaj.art-d1a1a4a580d14723a846945a4e6b65542024-01-02T15:15:26ZengPensoft PublishersFossil Record2193-00662193-00742006-02-0191618610.5194/fr-9-61-2006Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the HoplocetinaeO. Hampe0Museum für Naturkunde der Humboldt-Universität zu Berlin, Invalidenstraße 43, 10115 Berlin, Germany<i>Hoplocetus ritzi</i> n. sp. is a new hoplocetine physeterid from the <i>Bolboforma fragori /subfragoris</i> Zone of the middle/late Miocene mica-clay of Groß Pampau in Schleswig-Holstein, North Germany. The Hoplocetinae are known from the early Miocene to the Pliocene. Comparative studies of cranial characters and tooth morphology allow an emended diagnosis of the Hoplocetinae Cabrera, 1926. Four genera, <i>Diaphorocetus, Idiorophus, Scaldicetus</i>, and <i>Hoplocetus</i> are included in this subfamily. The pattern of functional tooth wear deduced from the described <i>Hoplocetus ritzi</i> n. sp. remains is reminescent of that known from <i>Orcinus orca</i>. The hoplocetine physeterids possibly occupied the killer whale niche before the killer whales appeared during the middle Pliocene. <br><br> Mit <i>Hoplocetusritzi</i> n. sp. wird ein neuer hoplocetiner Physeteride beschrieben. Der Fund stammt aus der <i>Bolboformafragori /subfragoris</i> Zone des mittel-/obermiozänen Glimmertons von Groß Pampau in Schleswig-Holstein, Norddeutschland. Die Hoplocetinae sind vom unteren Miozän bis ins Pliozän nachgewiesen. Anhand vergleichender Untersuchungen an wenigen Schädelmerkmalen und der Zahnmorphologie gelingt eine Neudiagnose der Hoplocetinae Cabrera, 1926 und eine vorläufige Abgrenzung zwischen den als valid angesehenen Gattungen dieser Unterfamilie, <i>Diaphorocetus, Idiorophus, Scaldicetus</i> und <i>Hoplocetus</i>. Das Abkauungsmuster der Zähne von <i>Hoplocetusritzi</i> n. sp. erinnert an das des heutigen <i>Orcinusorca</i>. Möglicherweise sind die hoplocetinen Pottwale habituell den Schwertwalen, die erdgeschichtlich erstmals im mittleren Pliozän auftreten, vergleichbar. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.200600002" target="_blank">10.1002/mmng.200600002</a>http://www.foss-rec.net/9/61/2006/fr-9-61-2006.pdf
spellingShingle O. Hampe
Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the Hoplocetinae
Fossil Record
title Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the Hoplocetinae
title_full Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the Hoplocetinae
title_fullStr Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the Hoplocetinae
title_full_unstemmed Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the Hoplocetinae
title_short Middle/late Miocene hoplocetine sperm whale remains (Odontoceti: Physeteridae) of North Germany with an emended classification of the Hoplocetinae
title_sort middle late miocene hoplocetine sperm whale remains odontoceti physeteridae of north germany with an emended classification of the hoplocetinae
url http://www.foss-rec.net/9/61/2006/fr-9-61-2006.pdf
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