I Know Dino Podcast Present Notes: Malawisaurus (Episode 111)

Episode 111 is all about Malawisaurus, a titanosaur that lived in Malawi in Africa, throughout the Early Cretaceous.

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On this episode, we talk about:

Sauropod, titanosaur, that lived in Malawi in Africa, throughout the Early Cretaceous
Named for the nation of Malawi, plus saurus (Greek for lizard)
Louis L. Jacobs, D. A. Winkler, W.R. Downs, and E.M. Gomani named Malawisaurus in 1993

Sidney H. Haughton described Malawisaurus in 1928 however categorised it as a species of Gigantosaurus (now an invalid title for a diplodocid, often called Tornieria)
One other synonym is Janenschia (was a Gigantosaurus species, Gigantosaurus robustus, that grew to become Tornieria robustus, however was present in 1991 to be distinct from Tornieria, and have become often called Janenschia robustus)
Not the identical as Janenschia as a result of Malawi fossils come from older rocks than Janenschia

Sort species is Malawisaurus dixeyi
In 2005, Elizabeth Gomani wrote Sauropod Dinosaurs from the Early Cretaceous of Malawi, Africa, and wrote about Malawisaurus
Malawisaurus is without doubt one of the few titanosaurs the place cranium materials has been discovered

Discovered cranial parts, cervical vertebrae, dorsal vertebrae, a sacrum, caudal vertebrae, chevrons, and dermal armor
Had a brief, excessive cranium
Small for a sauropod, about 52 ft (16 m) lengthy

Probably had osteoderms on its pores and skin, might have fashioned fundamental armor to guard it
Titanosaurs are a gaggle of sauropods, very giant herbivores, that lived over the last 30 million years of the Mesozoic Period. Some titanosaur species are the biggest land-living animals found, however in lots of circumstances, scientists have discovered incomplete fossils
The title Titanosaur got here from the Titans of Historical Greek mythology

The household, Titanosauridae, was named after Titanosaurus, an incomplete fossil (solely a partial femur and two incomplete caudal vertebrae) discovered by Richard Lydekker in 1877. Some scientists suppose there’s not sufficient info for Titanosauridae to be a genus
Titanosaurs have been the final group of sauropods. They lived about 90 to 66 million years in the past and have been the dominant herbivores. They changed different sauropods, like diplodocids and brachiosaurids
Titanosaur fossils have been discovered on all continents, together with Antarctica. Probably the most titanosaurs lived within the southern continents, which was then a part of the supercontinent Gondwana.

In comparison with different sauropods, Titanosaurs had small heads. Their heads have been additionally large, with giant nostrils, and crests fashioned by nasal bones
Enjoyable truth: Ontogeny pertains to developmental modifications in an animal, whereas phylogeny pertains to evolutionary modifications. There’s a concept referred to as the “recapitulation concept,” which for 100s of years has been used to equate embryonic improvement to a form of mini-evolution, i.e., a human fetus appears not solely appears like a fish as a result of we developed from fish, however actually passes by a fish stage. It’s not true, however it’s a good option to keep in mind what ontogeny and phylogeny imply.

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