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the carboniferous period had crinoids,echinoderms but today we don't have it
What else can I help you with?
What was the carboniferous environment like compared to the present?
During the Carboniferous period, the environment was warm and humid, with vast swamp forests covering much of the land. These forests eventually formed the coal deposits we see today. In contrast, the present environment is cooler and drier overall, with different vegetation and ecosystems in place.
How was the environment like during the Cretaceous period compared to the present?
grassy and naked
What was the environment like compared to the present?
it was different then the presant and there was so many thing thst we dont have now
What was the environment like compared to the present from ordoviciah?
all of the land was under water and the world was all messy
What is the tertiary periods environment like compared to the present?
Basic plants and flowers start to grow, the land is mostly covered with tree's, and new found grass.
What was the precambrian environment like compared to the present?
During the Precambrian period, which lasted from about 4.6 billion years ago to 541 million years ago, the Earth's environment was very different from the present. The atmosphere had little to no oxygen, the continents were still forming, and life was mostly single-celled organisms. The present environment is characterized by a more oxygen-rich atmosphere, complex multicellular life forms, and well-established continents.
What was the environment like in the Quaternary Time Period compared to the environment in the present?
The Quaternary Period experienced fluctuating climate with multiple ice ages and interglacial periods, resulting in extensive ice sheets and glaciers. In contrast, the present environment is characterized by a warmer climate with less extensive ice cover and higher sea levels. Human activity has significantly impacted the environment in the present, leading to issues such as global warming and biodiversity loss.
What is the environment like in the Jurassic period compared to the present?
During the Jurassic period, the environment was warmer and had higher levels of carbon dioxide in the atmosphere compared to the present. The landmasses were generally located closer together, forming the supercontinent Pangaea. The Jurassic period had a diverse range of plant and animal species, including dinosaurs, which dominated the terrestrial ecosystems.
What was the environment in the cretaceous period like compared to the present?
Alexis and Victoria said that it wuzz mostly ever so evergreens aned it wuzz lyk sooo moist. It didnt compare ta tha present right now becuz we have different kindz of climates.
What was the Triassic Period's environment like compared to the present?
it was mostly covered with trees and grass.
Why are there no mammals low down in the geologic column?
The first ancestors of mammals appeared in the Carboniferous period about 358.9 ± 0.4 million years ago. Before this time there were no mammal or mammal like creatures present to become fossilised.
What was It like in the second half of the carboniferous period?
The 2nd half's climate was during glaciation
