Spinosaurus aegyptiacus had an aquatic lifestyle, confirming the fossil discovery. The remarkably high tooth abundance of the giant dinosaur Spinosaurus Aegyptiacus, compared to the dental remains of terrestrial dinosaurs and some aquatic animals, largely supports this 15-meter-long predator in the Kem Kem river system of the Cretaceous period in Morocco. . Aquatic animals spend most of their lives in water where they shed and retain their teeth.

spinosaurus aegyptiacus

The only known dinosaur adapted to life in water, Spinosaurus aegyptiacus, swam the rivers of North Africa about 95 million years ago. Spinosaurus aegyptiacus is a giant theropod dinosaur that lived about 95 million years ago (Cretaceous period) in what is now North Africa. This magnificent dinosaur has been interpreted as a semi-aquatic and fish-eating animal, and has recently been shown to have a highly modified tail suitable for propelling the animal through water.

However, the hypothesis that this dinosaur was semi-aquatic or perhaps fully aquatic has faced some opposition, not least because it challenges decades-long views on the ecology and evolution of dinosaurs. The discovery of hundreds of Spinosaurus aegyptiacus teeth in a new area near Tarda on the northern edge of the Tafilalt in southeastern Morocco supports this hypothesis.

spinosaurus aegyptiacus dinosaur

The study’s corresponding author, Professor David Martil of the University of Portsmouth, said that the large number of teeth we collected from the prehistoric riverbed suggests that Spinosaurus Aegyptiacus was in large numbers, accounting for 45% of total dental remains. We do not know of any other place where such a mass of dinosaur teeth has been found in bony rock.

The greater abundance of Spinosaurus Aegyptiacus teeth, relative to other dinosaurs, is a reflection of its aquatic lifestyle. An animal that lived most of its life in water is more likely to have contributed teeth to river deposits than dinosaurs, who probably only visited the river bed to drink and feed. With this research, we can confirm this location as the place where this giant dinosaur not only lived but also died. The results are fully in line with the idea of a “river monster” that lives in water.

dinosaur

However, the hypothesis that this dinosaur was semi-aquatic, or even perhaps purely aquatic, has met with some opposition, mostly because it challenges a decade-long ideas about the and evolution of dinosaurs. The discovery of hundreds of Spinosaurus aegyptiacus teeth at a new locality near Tarda on the northern margin of Tafiltal in southeastern Morocco further supports this hypothesis.

lifestyle

According to the same study author, Portsmouth professor David Martill said: The large number of teeth collected from the floor of the prehistoric river suggests that Spinosaurus Aegyptis was in large numbers. We do not know of any other place where such a mass of dinosaur teeth has been found in a rock with bones. The higher abundance of Spinosaurus Aegyptiacus teeth relative to other dinosaurs is a reflection of their aquatic lifestyle.

giant dinosaur

An animal that lives its life in water is more likely to contribute teeth to river reservoirs than dinosaurs that probably visited the river just to drink and feed along its banks. With this research, we can confirm this location because this giant dinosaur was not only alive but also dead. In fact, the results are consistent with the idea of a “river monster” that lives in water. In the Moroccan Tarda there are different vertebrae from two localities:

  • (A) rostral dentary of oncoprecipites. numidus;
  • (B) Lick shark
  • (C) Pycnodont Vomarin tooth fragment
  • (D) teeth of unknown large fish
  • (E) Lungfish dental plaque
  • (F) abilicorid teeth
  • (G) indeterminate theropod teeth
  • (H) tooth of Spinosaurus sp.
  • (I) tooth of Carcharodotosaurus sp.
  • (J) titanosauroid sarcoprod dentition
  • (K) indeterminate thyme tooth
  • (L) Phospholosaurus crocodile tooth
  • (M) tooth of Allosuchus sp.
  • (N) Column fragment of the hybrid shark’s dorsal fin.
  • (O) vertebral probability attributed to Onchopristis number
  • (P) Indeterminate carpet turtle piece
  • (Q) Telest vertibra
  • (R) Holstein scale
  • (S) Indeterminate bone break. Scale bar – 10 mm.

After preparing all the fossils, we evaluated each one in turn, co-author Aaron Quigley, a master’s student at the University of Portsmouth, added to the study. Spinosaurus aegyptiacus has a different tooth surface. They have a smooth round cross section that glows when the light is hit. We classify the 1,200 teeth of the species and then we literally count them all. 45% of our total finding were Spinosaurus azipiacus teeth.

Spinosaurus aegyptiacus

The Chem Chem river beds are an amazing source of Spinosaurus aegyptiacus remains, said first author Thomas Beaver, a master’s student at the University of Portsmouth. They also preserve the remains of many other Cretaceous creatures. And including ara, coelacanths, crocodiles, flying reptiles and other terrestrial dinosaurs. With such an abundance of Spinosaurus eziziacus teeth, it is highly likely that this animal lived primarily within the river rather than on its banks. The study was published in the Cretaceous Research Journal.

Scientists identify new snail species, a new species of snail caenogastropod that lives in the rain forests of the lowlands of Borneo. A team of professional scientists and citizens discovered a new species of caenogastropod snail that lives in the rain forests of the lowlands of Borneo and named it in honor of climate activist Greta Thunberg.

A new snail species

An individual of Craspedotropis gretathunbergae. The newly described snail belongs to the so-called caenogastropods, a group of land snails that are known to be sensitive to drought, extreme temperatures and forest degradation, said Dr. Menno Schilthuizen, snail expert and co-founder of Taxon Expeditions. All individuals were found very close to the Kuala Belalong Field Studies Center.

At the foot of a steep hill, beside the river bank, while feeding at night on the green leaves of the undergrowth plants. The researchers decided to name the new species Craspedotropis gretathunbergae in honor of the young climatic activist Greta Thunberg, because the caenogastropod snails of the rainforests are very sensitive to droughts and extreme temperatures that are likely to be more frequent as climate change continues.

the first of the new species

“Naming this snail as Greta Thunberg is our way of recognizing that her generation will be responsible for solving the problems they did not create,” said citizen scientist J.P. Lim, who found the first individual of the new species and it is a promise that people of all generations will join her to help her. The team also approached Ms. Thunberg, who said: she would be delighted that this species bears her name.

This is not the first time that the Taxon Expeditions team names a species in honor of an environmental defender, the scientists said. In 2018, we named a new species of beetle in honor of the famous actor and climate activist Leonardo DiCaprio. “Sir. DiCaprio temporarily changed his profile picture on Facebook to his beetle’s photo to recognize this honor.

abundance of limestone

Terrestrial molluscs from Cape Delgado and adjacent continental regions of northeast Mozambique. 19 stations were studied and 46 species of terrestrial molluscs were recorded in an area of 18 × 55 km in the northeast corner of Mozambique. Three stations in Cabo Delgado (a peninsula in the extreme north of the Quimbas archipelago) yielded 19 species not found in the inland sampling area, and 18 species found inland were not found in Cabo Delgado, with nine in both regions.

The main ecological difference between Cabo Delgado and the interior region is the abundance of limestone in the first and its total depletion in the second. References to the original publication, type locality, type sample size (s) and summary geographic distribution are provided and as well as color photographs for each registered species.

A new species of Gulela (Pulmonta: Streptaxidae) from Cobo Delgado has been described. W. between the 18th century and 1847. Based on a collection made by Peters, e. Von Martens dates from the mid-19th century, when E.W. Von Martons had not published a series of documents (1860, 1869a, 1879) until it had been thoroughly examined.

land snails and slugs

The list of terrestrial mollusks given by Peter by von Martens in Mozambique and Lorenzo Marquis totaled 16 species. However, only ten of these were recorded in Mozambique in the strict sense (north of Zambezi). J. between 1858 and 1863. Kirk’s collection effort resulted in the addition of three species, which H. were recorded by Dohorn (1865). Five species on the list are JS Gibbons (1879). F.L. Stuhlmann visited the area in 1889 and added another species to the list (von Martens, 1897).

Only 24 species of land molluscs were known from Mozambique (except Lorenzo Marques). When M. Connolly published his main criticism in Portuguese East Africa in 1925. The last list of non-marine molluscs from Mozambique l. Published by Jermaine (1935). The northern part of the country shows 46 species of land snails and slugs. The last published record of a land snail from northeast Mozambique (van Bruggen 2006).

It is based on a collection of. Van Hopen made in 1970. Except for these scattered aggregates, our knowledge of mollusk fauna in northeast Mozambique is the same as it was 75 years ago. The team published an article describing Craspedotropis gretathunbergae this week in the Biodiversity Data Journal.

Discovered a new species of snail

Discovered a new species of snail, named after Greta Thunberg. London: Scientists discovered a new species of land snail in honor of Swedish activist Grata Thunberg for her efforts to raise awareness of land change, and named it ‘Crespedotropis Gratthunberga’. According to the study, published in the ‘Journal of Biodiversity Data’, the newly discovered species belongs to the so-called Coyogastropods.

A group of land snails known to be sensitive to drought, extreme temperatures and forest degradation. Scientists, including evolutionary ecologist Meno Schilthuijn from the ‘Naturalis Biodiversity Center’ in the Netherlands, said the snails were found very close to the research station at Brunei’s ‘Kualaal Belang Field Study Center’.

discovery of species

She said that snails are found on the banks of a mountain, on the banks of a river, on the green leaves of plants that make sense at night. In support of the amateur scientist JP Lim, who found the first person of the snail. Naming this snail after the Great Thunberg is our way of recognizing that its generation would be responsible for solving the problems that were not done.

It is a promise that people of all generations will come together to help you. Investigators said they contacted Thunberg, who said she would be ‘happy’ on behalf of this species. The scientists said that the study work, field work, morphological studies and classification of the identified samples were carried out in a field center with basic equipment and Internet access.

According to the study, a ’10-day taxon campaign was carried out by untrained’ citizen scientists led by experts. Although we know that this way of working has its limitations in terms of production quality. For example, we were unable to break down or do an exhaustive search in the literature. The advantage is the rapid discovery of species and the processing in situ. It’s included. Materials, ‘the researchers wrote in the study.

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