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Eurhinodelphinidae
Eurhinodelphinidae is an extinct Family (biology), family of toothed whales which lived from the Oligocene to the Miocene. Members of the family possessed an elongated jaw similar in appearance to a swordfish. Taxonomy *Family Eurhinodelphinidae **''Ceterhinops'' **''Eurhinodelphis'' **''Iniopsis'' **''Mycteriacetus'' ** ''Phocaenopsis'' **''Schizodelphis'' **''Vanbreenia'' **''Xiphiacetus'' **''Ziphiodelphis'' References Prehistoric toothed whales Prehistoric mammal families {{paleo-whale-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrodelphinus
''Macrodelphinus'' is an extinct genus of primitive odontocete known from Late Oligocene (Chattian) marine deposits in California. Biology ''Macrodelphinus'' was an orca-sized odontocete similar to members of Eurhinodelphinidae in having a swordfish-like rostrum and upper jaw. Because of its size, and inch-long teeth, it is believed to have been an apex predator. Classification ''Macrodelphinus'' is known from a fragmentary skull from the Late Oligocene Jewett Sand Formation of Kern County, southern California. Although often classified as a member of Eurhinodelphinidae, the cladistic analysis of ''Chilcacetus'' recovers it outside Eurhinodelphinidae, less advanced than ''Eoplatanista''. The Miocene species ''"Champsodelphis" valenciennesii'' Brandt, 1873, based on a rostrum fragment from marine sediments in Landes, France, was assigned to ''Macrodelphinus'' by Kellogg (1944).R. Kellogg. 1944. Fossil Cetaceans from the Florida Tertiary. Bulletin of the Museum of Comparative Zoolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schizodelphis
''Schizodelphis'' is an extinct genus of cetacean Cetacea (; , ) is an infraorder of aquatic mammals that includes whales, dolphins, and porpoises. Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet. They propel them .... References Prehistoric toothed whales Prehistoric cetacean genera Fossil taxa described in 1861 Fossils of France Fossils of Austria {{paleo-whale-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oligocene
The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich from his studies of marine beds in Belgium and Germany. The name comes from the Ancient Greek (''olígos'', "few") and (''kainós'', "new"), and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" ... Epoch. The Oligocene is the third and final epoch of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycteriacetus
''Mycteriacetus'' is an extinct genus of dolphin from the Early Miocene (Burdigalian) of northeastern Italy. The type species is ''M. bellunensis''. Etymology ''Mycteriacetus'' is named after the Yellow-billed stork The yellow-billed stork (''Mycteria ibis''), sometimes also called the wood stork or wood ibis, is a large African wading stork species in the family Ciconiidae. It is widespread in regions south of the Sahara and also occurs in Madagascar. Taxo ... (''Mycteria ibis'') because the bill of that species is as long as the rostrum of ''Mycteriacetus''. Taxonomy ''Mycteriacetus bellunensis'' was originally named as a new species of '' Eurhinodelphis'', ''E. bellunensis'', by Pilleri (1985). However, Bianucci and Landini (2002) transferred this species to '' Argyrocetus'', creating the new combination ''A. bellunensis''.G. Bianucci and W. Landini. 2002. Change in diversity, ecological significance and biogeographical relationships of the Mediterranean Miocene toothe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiphiacetus
''Xiphiacetus'' is an extinct genus of cetacean known from the Miocene (early Burdigalian to late Tortonian, of Europe and the U.S. East Coast. described ''Priscodelphinus cristatus'' based on partial and poorly preserved skulls with extremely long and narrow rostra The rostra ( it, Rostri, links=no) was a large platform built in the city of Rome that stood during the Roman Republic, republican and Roman Empire, imperial periods. Speakers would stand on the rostra and face the north side of the comitium tow ... with a huge number of densely packed teeth. He estimated the rostrum of a large specimen to be long and the cranium to be long and slightly wider. He also found a series of well-preserved cervicals and a few of the anterior-most thoracics. described ''Eurhindelphis bossi'' based on an almost complete skull missing ear bones, both mandibles, sixteen vertebrae, ten ribs, an incomplete scapula, a humerus, and a partial sternum. Kellogg named his species after its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiphiacetus Sp
''Xiphiacetus'' is an extinct genus of cetacean known from the Miocene (early Burdigalian to late Tortonian, of Europe and the U.S. East Coast. described ''Priscodelphinus cristatus'' based on partial and poorly preserved skulls with extremely long and narrow rostra The rostra ( it, Rostri, links=no) was a large platform built in the city of Rome that stood during the Roman Republic, republican and Roman Empire, imperial periods. Speakers would stand on the rostra and face the north side of the comitium tow ... with a huge number of densely packed teeth. He estimated the rostrum of a large specimen to be long and the cranium to be long and slightly wider. He also found a series of well-preserved cervicals and a few of the anterior-most thoracics. described ''Eurhindelphis bossi'' based on an almost complete skull missing ear bones, both mandibles, sixteen vertebrae, ten ribs, an incomplete scapula, a humerus, and a partial sternum. Kellogg named his species after its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
