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Some possible predators of the basilosaurus were the shastasaurus, the dunkleosteus, and the elamosaurus. The basilosaurus was very large and had very few predators.
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A basilosaurus is any of a group of very large extinct cetaceans of the family Basilosauridae, from the late Eocene period.
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Basilosaurus is the proper name for this creature. Basilosaurus died out during the Eocene extinction 33,000,000 years ago.
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Basilosaurus is an extinct whale, so its habitat was either open ocean or coastal seas.
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Scientists believe the basilosaurus became extinct by when the water was getting too cold leading up to the ice agr
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NO! they lived in prehistoric times with the dinosaurs
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Basilosaurus was first discovered in the early 19th century, with significant contributions from American paleontologist Richard Harlan, who described the species in 1834. The fossils were initially found in the southern United States, particularly in Alabama and Mississippi. Harlan named it "Basilosaurus," meaning "king lizard," due to its large size and reptilian appearance, despite being a prehistoric whale.
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Yes it has been affected
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A zeuglodon is an alternative name for a basilosaurus, a genus of early whale which lived between 40 and 34 million years ago.
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Basilosaurus evolved 40 million years ago (mya). That is in the middle of Paleogene period, the first period of the Cenozoic era. They became extinct 6 million years later, which was 34 mya.
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5. basilosaurus 4. megalodon 3. Pilosaur 2. xiphactomus 1. giant mosasaur
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They both grow to 18m long but the Megalodon can grow 18m or more so I'm guessing the Megalodon:)
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The largest prehistoric animal ever was the Basilosaurus which was a 59 foot whale. The largest crocodilian was the 39 foot long Sarcosuchus Imperator.
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Ammonites, Basilosaurus, Caphalaspis, Liopleurodon, Steller's Sea Cow, Great Auk, Archelon, Cymbospondylus, Dunkleosteus and Megalodon.
These are just a few.
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Basilosaurus, an ancient marine mammal that lived during the late Eocene epoch, primarily inhabited warm, shallow seas and coastal environments. Its fossils have been found in regions that were once part of tropical and subtropical oceans, indicating a preference for marine habitats where it could hunt for fish and other marine animals. These creatures were well-adapted to life in the water, showcasing a mix of primitive and advanced features for a fully aquatic lifestyle.
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You may not think Alabama was a place where dinosaurs thrived, but the state had many indigenous species that called it home. The Appalachiosaurus, the Lophorhothon and the Basilosaurus were native to Alabama and the surrounding areas.
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The official state rock of Alabama is marble. It was designated as such in 1969.
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Few dinosaurs are known from Alabama. However, there was Appalachiosaurus, a type of tyrannosaur, and Lophorhothon, which was a plant eating hadrosaur or a relative of Iguanodon. An ancient whale called Basilosaurus is also known from Alabama, but they didn't evolve until after dinosaurs went extinct.
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The list of extinct whales typically only includes those in the fossil record. However, the population of Atlantic Gray Whales went extinct in the 18th century. Extinct fossil whale species include the Durodon, Basilosaurus cetoides, and ambulocetus, The Obedenocetops is the closet to modern whales.
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Strictly speaking, the sea lizards were NOT dinosaurs, but their contemporaries. The largest of these was probably the Liopleurodon. An even bigger creature, Basilosaurus, was, despite the name, not a sea lizard, but a whale.
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Answer...
Zygorhiza - A long, sea serpent like whale from the Eocene.
Appalachiosaurus - A primitive tyrannosaurid related to Albertosaurus, only known from the East Coast.
Lophorothon - A type of hadrosaur.
Answer...
Zygorhiza - A long, sea serpent like whale from the Eocene.
Appalachiosaurus - A primitive tyrannosaurid related to Albertosaurus, only known from the East Coast.
Lophorothon - A type of hadrosaur.
and a basilosaurus which is their state fossil ...
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NO. I can think of 4 prehistoric creatures from the mississippi. firstly Zygorhiza, Durodon and basilosaurus are whales with limbs. and secondly teilnardina is the firs primate in North America a tiny little bush baby. obviously things like smilodon, dire wolves, mammoths and prehistoric bison lived in the whole of North America .
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I think it was Basilosaurus (also more correctly named Zeuglodon). It measured around 60 feet long and 100 tons (I dont know what kind of tons, though). I haven't done extensive research, but as a rule things can get bigger in the water than they can on land, and the website I checked said it rivaled the sauropods for size. Good place to start your research if nothing else.
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No. It was a sea-lizard. The suffix "-saurus" throws a lot of people. Unfortunately, ancient creatures are named before it's definitely determined what kind of animals they really were, so sometimes they get tagged with a "dinosaurish" name which isn't really appropriate. The so-called "basilosaurus" (king lizard) was actually a whale.
A way to remember is to know that "Dinosaur" actually covers TWO kinds of creatures, called the Ornithiscians and the Saurithiscians, but both of these were land-walking animals, so NONE of the creatures of the sea and NONE of the flying reptiles were dinosaurs.
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The largest land mammal ever to exist was the Indricotherium (Paraceratherium), which lived in Europe and Asia between 37 and 23 million years ago. They were long necked plant eaters related to rhinoceroses (see the related link for more info).
In the oceans, Basilosaurus was among the largest prehistoric mammals. An elongated, primitive "whale," they measured 50 to 72 feet long, and lived in seas that covered the Southeastern U.S.A., Egypt, and Pakistan between 40 and 34 million years ago (see the other related link for more info).
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Spinosaurus
EDIT - Either Basilosaurus or Liopleurodon.
That's incorrect. Largest was megadolon. It was 16-20 meters and more then 50 tons. For me that's absolutly largest carnivore ever.
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Brontosaurus/Apatosaurus was 40 feet or 12 meters tall,in terms of how long they were they were about 90 or 27 meters and possibly much larger in length,and in weight they were about 40 tons or more
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The largest type of living whale is the Blue Whale. It is possible that there might have been another type of whale that was bigger but is now extinct - however the largest known extinct whales such as Basilosaurus - a whale-like cetacean - 40-65 ft (12-20 m) and Livyatan melvillei - an extinct toothed whale from the Miocene - 13.5-17.5 meters, were still smaller than the Blue Whale - up to 29.9 metres (98 ft).
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A transitional fossil has evidence of an organism that had lived with different traits from different species. For example, the skeleton of Basilosaurus isis found in an Egyptian desert in 2005 has a whalelike body but also the limbs of land animals. Basilosaurus isis might be a transitional fossil from an ancient, giant land animal to a more recent whale.
Transitional fossils display features of two types of animals and are examples of the transition from one type of animal into another. They are also known intermediate fossils, and serve to "bridge the gap" in evolutionary history between two types of related animals. They can be identified by their retention of certain primitive traits in comparison with their more derived relatives.
According to modern evolutionary synthesis, all populations of organisms are in transition. Therefore, a "transitional form" is a human construct of a selected form that vividly represents a particular evolutionary stage, as recognized in hindsight. Contemporary "transitional" forms may be called "living fossils", but on a cladogram representing the historical divergences of life-forms, a "transitional fossil" will represent an organism near the point where individual lineages (clades) diverge.
One example of a transitional fossil is one of Tiktaalik, a prehistoric fish. It contains features of fish such as fins, scales, and gills, but it has a flat head, lungs, weight bearing wrist bones, and a mobile neck like a tetrapod. Since it is found in just the right rock later, Tiktaalik represents one evolutionary stage in the transition from fish to tetrapods.
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No dinosaurs live in the ocean. Here is a list of prehistoric sea creatures:
1. Cretoxyrhina
2. Caproberyx
3. Dolichorhynchops
4. Enchodus
5. Gillicus
6. Hesperornis
7. Kronosaurus
8. Liopleurodon
9. Megalodon (Biggest shark of all time. As long as 6 cars)
10. Mosasaur
11. Nothosaur
12. Platecarpus
13. Plesiosaur
14. Protostega (Ancestor of all sea turtles)
15. Styxosaurus
16. Temnodontosaurus
17. Tylosaur
18. Bananogmius
19. Basilosaurus
20. Elasmosaurus
21. Leptocodon
22. Baculite
23. Tusoteuthis
24. Cretoxyrhina
25. Squalicorax
26. Xiphactinus
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a basilisk is a fictional character, and even if it were real, it would eat most anything that has a heartbeat and blood. legend holds it to be a bloodthirsty monster, where if you look straight into its eyes, you die. yet if you look at it in a mirror or reflection of some type, then you would only be petrified.
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1. Each living thing gets one name which is uniquely its own. 2. The first name given with a description is the "correct" one. [For example, an ancient whale was originally named "Basilosaurus" under the impression that it was a reptile. Later study showed it was a mammal and it was renamed "Zeuglodon" but the old name stuck.] 3. The discoverer/describer usually gets to choose the name, but it should be based on Greek, or a mixture of Greek and Latin. 4. Zoology allows, but Botany does not, tautological names, in which genus and species names are the same, as with Bison bison, Gorilla gorilla or Tyrannus tyrannus. 5. The one time a name CAN be changed is when a proper relationship is uncovered [For example, where polar bears were found to be the descendants of brown ("grizzly") bears, their name was changed from Thalartcos maritimus to Urus maritimus.] 6. The genus is always capitalized; the species is always lowercase.
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Tyrannosaurus Rex Vs Gigantosaurus - T-Rex Wins.
Megalania Vs Titanoboa - Megalania Wins.
Megalodon Vs Deinosuchus - Megalodon Wins.
Basilosaurus Vs Mosasaurus - Mosasaurus Wins.
Xiphactumus Vs Elsamosaurus - Elsamosaurus Wins.
Tylosaurus Vs Mosasaurus - Mosasaurus Wins.
Megalodon Vs Liopleurodon - Megalodon Wins.
Mountain Gorilla Vs African Lion - Mountain Gorilla Wins.
Nile Crocodile Vs Spotted Hyena - Nile Crocodile Wins.
Spotted Hyena Vs Common Chimpanzee - Chimpanzee Wins.
Meerkat Vs Cape Cobra - Meerkat Wins.
Domestic Cat Vs Egyptian Mongoose - Cat Wins.
Saltwater Crocodile Vs American Alligator - Crocodile Wins.
Giant Anteater Vs Aardvark - Anteater Wins.
Charcadontosaurus Vs Tyrannosaurus - Tyrannosaurus Wins.
Tyrannosaurus Vs Liopleurodon - Tyrannosaurus Wins.
Liopleurodon Vs Cretoxyrhina - Liopleurodon Wins.
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The person who describes a new dinosaur (or a new species of anything) for the first time in the professional literature gets to name it. They usually use some derived Greek or Greek and Latin. (for example, "Tyranno-" means "king" in Greek, and "rex" means "king" in Latin).
Sometimes the names aren't very appropriate. Because it was smaller and didn't have the horns of the big horn-faced dinosaurs, "Protoceratops" was named as though it was a primitive form, but it actually lived at the same time as the others. One dinosaur was named "Oviraptor" or "egg thief" because the scientist thought it died while stealing the eggs of another dinosaur, but it was actually trying to protect its own eggs. One "dinosaur" was named "Basilosaurus" ("Basil" is yet another Greek word for "king") but it turned out to be a kind of whale.
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the largest ocean preditor is the sperm whale. they feed on collosal giant squid and can grow over 60 feet in length. the second may be the orca of the dolphin family. there are records of one over 30 feet and they feed on sperm whales occasionally !third is the great white shark with records of around 22 feet in length. *Warning* This guys grammar is bad!
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There are far, far too many too list, however, here are a few:
Trilobites: animals similar in appearance to the horseshoe crab, that lived from 526 to 250 million years ago.
Anomalocaridids: long and narrow, invertebrate carnivores that lived from about 500 to 400 million years ago.
Ammonites: invertebrates with a snail-like shell that protected a squid-like body, and floated in the ocean, who lived from 400 to 65.5 million years ago.
Icthyosaurs: marine reptiles that resembled dolphins, or fish, and lived from 245 to 90 million years ago.
Plesiosaurs: marine reptiles with long or short necks, who ate fish and swam with flippers, and lived from 210 to 65.5 million years ago.
Hesperornithes: Fully aquatic birds that lived from 100 to 65.5 million years ago.
Mosasaurs: Huge, carnivorous marine lizards (up to 40 feet long), that lived from 85 to 65 million years ago.
Enchodus (or saber toothed herring): a small to medium predatory fish with two long "fangs," that lived from the late Cretaceous to the Eocene (perhaps 100 to 40 million years ago).
Basilosaurus: a very long and narrow relative of whales, that lived from 40.4 to 33.9 million years ago.
Megalodon: a shark that may have been up to 50 feet long, and lived from 25 to 1.5 million years ago.
There are also a number of prehistoric ocean animals that still exist today, such as:
Sharks and rays: evolved about 416 million years ago.
Coelocanth: a type of fish related to lungfish that evolved about 400 million years ago.
Cephalopods (invertebrates such as squid and octopi): evolved about 400 million years ago.
Barnacles: evolved about 500 million years ago.
Coral (yes, they are animals): evolved about 542 million years ago, although modern coral reefs didn't first appear until about 245 million years ago.
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The Cenozoic Era started 65.5 million years ago and still is the current era.
It is widely recognised as the era of the mammal but this is a very simplistic view.
For several million years after the KT-Event the most dominant animals where the Terror Birds. In South America this dominance only ended about 2 million years ago soon after it joined with North America and species of saber toothed cats took over.
From as long ago as 45 million years ago mammals such as Andrewsarchus on land and Basilosaurus in the oceans had come to dominate most environments on Earth.
One major exception to mammalian domination is flying animals. The sky during the Cenozoic has been mainly dominated by the decedents of dinosaurs, the birds.
Other smaller environments such as the everglades in southern Florida the dominant animals are the Reptilian Alligators.
One mammal however has become the most dominant species on earth, Human Beings. Starting from about 200,000 years we started to slowly dominate Africa and about 70,000 years ago we started to colonise the rest of the planet. We now are the most dominant species in every environment.
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To be entirely fair to the scientists, it is usually the other way around, e.g. they know that some places that are now deserts used to be underwater. Scientists can determine this based on several different factors.
- Limestone: One of the clearest indicators that an area was historically underwater is layers of limestone. Limestone is formed from the parts of microscopic sea creatures called diatoms and some types of crustaceans that fall to the sea floor and are compacted over millions of years. In order to have significant amounts of limestone, therefore, these regions would need to be submerged for millions of years. Conversely, there are very few animals and microscopic organisms that leave behind the necessary materials to form limestone (never mind enough to compact earlier layers).
- Fossils: There are a number of different fossils of creatures that have been found in the desert and their appearances make it clear that that they would have been unable to live on land. Basilosaurus, the largest meat-eating whale in history, has been discovered in the Sahara Desert. Far more common to find are smaller creatures which are also clearly marine animals, like ammonites.
- Halite: Halite is crystallized salt and generally appear in areas that used to have saltwater that has since evaporated.
- Aquifers: Most deserts have water tables, but aquifers exist in some deserts, indicating amounts that previously seeped beneath the sands as the sea was drying up. Aquifers are only indicators, not substantial proof.
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The Cenozoic started 65.5 million years ago, and it continues through the present day. The Cenozoic is when flowering plants and mammals diversified and came to dominate terrestrial flora and fauna, respectively. Mammals started out small, but evolved into all the forms that exist today, from elephants to lions to kangaroos to bats to sea lions.
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Above is a link to a scale representation of prehistoric sea creatures. For the looks of it Leedsichthys seems to be the biggest sea creature. Megalodon was estimated to be around 33 feet in length. The Liopluredon was an estimated 25 feet. The Sarcosuchus was estimated to be 37-40 feet. Thus leaving the Leedsichthys, Leedsichthys Problematicus was a giant pachycormid (an extinct group of bony fish) that lived in the oceans of the late Jurassic period, 165-155 million years ago. Only partial skeletons have been discovered, so its exact size is uncertain. Estimates range from 15 to 30 meters, but the best estimates believe it to have grown to around 20-22m (= 66 to 72 feet) long, making it the largest fish ever to exist. Hopefully this helps. By no means is this answer absolute I am not educated in Prehistoric Sea Creatures, it's just data gathered from searching the Internet, as well as various National Georgraphic sites I have come across. There is a program that is hosted by Nigel Marvin called Prehistoric Sea creatures that touches upon all creatures listed above.
---The Megalodon has actually been recorded to be 55-60 feet in length, I also found this out from a Nat Geo site. I am also not a "Prehistoric Sea Creature" specialist.. but I've looked everywhere on the internet to find the definite world's largest. Just to put in "Predator X" or "Liopleurodon" measured up to 50 feet in length.
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There were several apex predator whales during the Cenozoic era.
The first in fossil register from the early Eocene period was Basilosaurus cetoides, a rather slim but very large (up to 20 metres long) odontoceti whale that preyed on sharks and bony fish.
But the indisputably top predator of all whale species ever was Livyatan melvillei, the only possible contender of C. megalodon on the Miocene oceans.
Very few fossil remains have been found after the first discovery, in 2008, of Livyatan melvillei, and no complete fossil skeleton has been found to this day.
However, the maximum total lenght of Livyatan melvillei must have been 17 metres, or possibly even larger.
The big difference of these prehistoric odontoceti whales from contemporaneous toothed whales, like the sperm whale (Physeter macrocephalus), lies in the fact that the early «hypercarnivorous» whales had teeth in upper AND lower jaws, unlike the sperm whale, which has teeth only in the lower jaw. The only possible exception could have been the Aulophyseterwhale from late Miocene, but this is still a matter of debate among paleontologists.
Livyatan melvillei had the largest teeth EVER from a carnivorous animal (including dinosaurs, pliosaurs and mosasaurs), more than 36 cm in total lenght. Larger fossil remains of this monster whale are expected to be discovered.
Just to make a comparison, the largest fossil teeth of C. megalodon is 19,4 cm, and it was found by professional fossil hunter Vito Bertucci, worldwide known as the «Megalodon Man». He died recently during a very dangerous dive in the Ogeechee River, near the Intercoastal Waterway in Bryan county, searching for even larger meg teeth. Vito Bertucci was aged 48.
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Yes
yes it is
Although the great white is typically regarded as an apex predator in the wild, it is in rare cases, preyed upon by the larger orca (also known as a killer whale). Interspecific competition between the great white shark and the orca is probable in regions where dietary preferences of both species may overlap.[35] An incident was documented on October 4, 1997 in the Farallon Islands off California-an estimated 4.7-5.3-metre (15-17 ft) female orca immobilized an estimated 3-4-metre (9.8-13 ft) great white shark.[42] The orca held the shark upside down to induce the tonic immobility, and kept the shark still for fifteen minutes, causing it to suffocate and then proceeded to eat the dead shark's liver.[35][42][43] Another similar attack apparently occurred there in 2000, but its outcome is not clear.[44] After both attacks, the local population of about 100 great whites vanished.[43][44] Following the 2000 incident, a great white with a satellite tag was found to have immediately submerged to depth of 500 m and swam to Hawaii.[44]
During prehistoric times, other large toothed whales, such as Squalodon and Dorudon may have also preyed on great white sharks.[citation needed] These whales, in turn, were likely preyed on by the much larger lamnid shark C. megalodon. Basilosaurus, one of the largest predatory whales that ever lived, closely matched C. megalodon in size. This extinct whale almost certainly would have, at least occasionally, hunted and eaten great whites.[citation needed] Upon the extinction of these macropredatory whales, the orca is now the great white's only natural predator.
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This question makes no sense, because there are plenty of transitonal fossils.
So I'm just going to list some.
Cladoselache
tristychius
ctenacanthus
paleospinax
spathobatis
Protospinax
Acanthodians
cheirolepis
mimia
Canobius
Aeduella
Parasemionotus
Oreochima
leptolepis
Osteolepis
Eusthenopteron
Sterropterygion
tiktaalik
panderichthys
Elpistostege
Obruchevichthys
Hynerpeton
Acanthostega
Ichthyostega
Pholidogaster
Pteroplax
Dendrerpeton acadianum
Archegosaurus decheni
Eryops megacephalus
Trematops
Amphibamus lyelli
Doleserpeton annectens
vieraella
Proterogyrinus
Limnosclis
Tseajaia
Solenodonsaurus
Hylonomus
Paleothyris
Captorhinus
Petrolacosaurus
Araeoscelis
Apsisaurus
Claudiosaurus
Planocephalosaurus
Protorosaurus
Prolacerta
Proterosuchus
Hyperodapedon
Trilophosaurus
Coelophysis
Deinonychus
Oviraptor
Lisboasaurus
Archeopteryx
Sinornis
Ambiortus
Hesperornis
Ichthyornis
Paleothyris
Protoclersydrops
Clepsydrops
Archaeothyris
Varanops
Haptodus
Dimetrodon
Sphenacodon
Biarmosuchia
Procynosuchus
Dvinia
Thrinaxodon
Cynognathus
Diademodon
Proelesodon
Probainognathus
Exaeretodon
Oligokyphus
Kayentatherium
Pachygenelus
Diarthrognathus
Adelobasileus
Sinoconodon
Kuehneotherium
Eozostrodon
Morganucodon
Haldanodon
Peramus
Endotherium
Kielantherium
Aegialodon
Steropodon
Vincelestes
Pariadens
Kennalestes
Cimolestes
Procerberus
Gypsonictops
Palaechthon
Purgatorius
Cantius
Pelycodus
Amphipithecus
Pondaungia
Parapithecus
Propliopithecus
Aegyptopithecus
Proconsul
Limnopithecus
Dryopithecus
Pakicetus
Nalacetus
Ichthyolestes
Gandakasia
Ambulocetus
Himalayacetus
Attockicetus
Remingtonocetus
Dalanistes
Kutchicetus
Andrewsiphius
Indocetus
Qaisracetus
Takreacetus
Artiocetus
Babiacetus
Protocetus
Pappocetus
Eocetus
Georgiacetus
Natchitochia
Dorudon
Ancalacetus
Zygorhiza
Saghacetus
Chrysocetus
Gaviacetus
Pontogeneus
Basilosaurus
Basiloterus
Sahelanthropus tchadensis
Orrorin tugenensis
Ardipthecus ramidus
Ardipithecus kadabba
Australopithecus afarensis
Australopithecus africanus
Australopithecus anamensis
Australopithecus garhi
Australopithecus aethiopicus
Australopithecus boisei
Australopithecus robustus
Australopithecus bahreghazali
Homo habilis
Homo rudolfensis
Homo erectus
Just to name a few :)
(I might have spelled one or two incorrectly)
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