Answer:
The climate in that area is different today than when tropical plants and animals lived there
Explanation:
The most likely reason for the absence of those tropical animals in North Texas would be the climate.
Climatic conditions have varied through geologic history of our blue planets. When these conditions changes, organisms have to adapt and on the long run, the environment won't be able to sustain them. They become phased out.
It is possible for rock records in a place to bear different fossil records records that are not similar compared to the life we have in such areas today.
The Sahara desert for example has huge fossils of fishes in its rocks. Today, the area is a hot desert and contains very low biodiversity. Sciencist have proposed that the region was previously a lush green tropical forest and the ocean covered some parts too. Today, the Sahara's climate has changed.
Alaska is the biggest in terms of sq miles
In Mars, there are only (C) 2 Moons. These moons are named as Phobos and Deimos. These 2 moons are discovered by Asaph Hall in which their names are gotten from Greek mythology. Since Mars is considered or named after the god of War, Ares. Then, his sons, Phobos and Deimos got the moons.
