Biology:Squalodelphis
Squalodelphis is an extinct genus of river dolphin from the early Miocene belonging to Squalodelphinidae, containing only its type species Squalodelphis fabianii.[1] Known remains have been found in Italy and Germany.[2][1]
Taxonomy
Squalodelphis is the type genus of the family Squalodelphinidae, which also includes the genera Huaridelphis, Notocetus, Phocageneus, Macrosqualodelphis, Medocinia, and Furcacetus.[3] Throughout its history, it has been moved several times between Squalodelphinidae (previously Squalodelphidae) and Ziphiidae.
Description
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Squalodelphis differs from Huaridelphis and Macrosqualodelphis in having a dorsal opening of the mesorostral groove broader than that of the premaxilla in the rostral base and lower tooth count, and from Macrosqualodelphis in having a transversely narrower nuchal crest as well as the left and right frontals being of unequal length at the vertex.[4]
Distribution
The type species of Squaloziphius, S. fabianii, is known from the Libano sandstone formation, in the Veneto region of northeastern Italy.[2][5] Fossils have also been found in the Baltringen region of Germany.[1]
References
- ↑ 1.0 1.1 1.2 Cite error: Invalid
<ref>tag; no text was provided for refs namedmindat - ↑ 2.0 2.1 Dal Piaz, G. (1917). "Gli Odontoceti del Miocene bellunese, Parte Terza. Squalodelphis fabianii.". Memorie Dell' Instituto Geologico della R. Universita di Padova 5 (1): 1–34.
- ↑ Lambert, Olivier; Bianucci, Giovanni; Urbina, Mario (29 July 2014). "Huaridelphis raimondii, a new early Miocene Squalodelphinidae (Cetacea, Odontoceti) from the Chilcatay Formation, Peru". Journal of Vertebrate Paleontology (Taylor & Francis) 34 (5): 987–1004. doi:10.1080/02724634.2014.858050. Bibcode: 2014JVPal..34..987L. https://www.tandfonline.com/doi/full/10.1080/02724634.2014.858050#d1e180.
- ↑ Bianucci, Giovanni; Bosio, Giulia; Malinverno, Elisa; de Muizon, Christian; Villa, Igor M.; Urbina, Mario; Lambert, Olivier (April 2018). "A new large squalodelphinid (Cetacea, Odontoceti) from Peru sheds light on the Early Miocene platanistoid disparity and ecology". Royal Society Open Science 5 (4). doi:10.1098/rsos.172302. PMID 29765678. Bibcode: 2018RSOS....572302B.
- ↑ "The Ecological Register". http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=64078.
Template:Odontoceti Wikidata ☰ Q119137974 entry
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