Question

Name the fossil order of pteridophytes from paleozoic era.​

Answer 1

Answer

There are four types of Pteridophyte

Explanation:

Pteridophytes plays a major role in animal kingdom.they are known from 380 million ago. Fossils of Pteridophytes have been obtained from rock strata belonging to Silurian and Devonian periods of the Paleozoic era.

Class Psilotopsida:

it resemblance in fundamental characteristics to the Silurian ad Devonian members of Rhyniopsida.

class Lycopsida:

it has long evolutionary history and represented both by extant and extinct genera.It is originated from lower Devonian period of Paleozoic era.

Class Sphenopsida:

it is represented by only one living genus (Equisetum and about 18 extinct forms.It is originated during the Devonian period of Paleozoic era.

Class Pteropsida :

This group is commonly known as 'ferns'. it is originated from the back of the Devonian period of Paleozoic era.

Answer 2

Answer:

The paleozoic era is considered from the 544 to 245 million ago and this time is divided into six different periods. We have found many critical evidence of civilization between these periods, and you can find some paleozoic fossils such as fish and fish like vertebrates. More than 95% marine species are found during this era, and paleozoic period is known as Cambrian Ordovician Silurian Devonian carboniferous Permian period.