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Intertrappean Beds AI simulator
(@Intertrappean Beds_simulator)
Hub AI
Intertrappean Beds AI simulator
(@Intertrappean Beds_simulator)
Intertrappean Beds
The Intertrappean Beds are a Late Cretaceous and early Paleogene geologic unit in India. These beds are found as interbeds between Deccan Traps layers, including the slightly older Lameta Formation. They consist a number of different subgroups and formations, and span the Cretaceous–Paleogene boundary.
Many mostly fragmentary fossils, especially of small vertebrates, are known from the formation. Indeterminate theropod and pterosaur remains have been recovered from the formation, as well as dinosaur eggs. The mammal genera Deccanolestes, Sahnitherium, Bharattherium, Indoclemensia, Indotriconodon and Kharmerungulatum have been recovered from several localities. The Early Eocene-aged Bamanbor locality in Gujarat preserves articulated freshwater fish specimens. A rich plant flora is known from the formation.
Although often thought of as a contemporaneous unit that was formed in a single rapid eruption event, more studies that date the age of the volcanic beds indicate that the Deccan Traps did not erupt all at once. Instead, different portions appear to have erupted during different periods of time. This means that the Intertrappean Beds are best understood as a group of different volcanic-associate formations of varying ages.
Kale et al (2020) divided the group into the following provinces:
Mittal et al (2021) divided the group into the following provinces:
Kale et al (2020) divided the group as follows. Subgroups/formations are classified based on oldest to youngest.
Kale et al (2020) divided the group as follows. Subgroups/formations are classified based on oldest to youngest.
Within the newly defined Saurhastra Group (age: Paleocene to early Eocene), the following divisions were found by Patel & Shah (2023):
Intertrappean Beds
The Intertrappean Beds are a Late Cretaceous and early Paleogene geologic unit in India. These beds are found as interbeds between Deccan Traps layers, including the slightly older Lameta Formation. They consist a number of different subgroups and formations, and span the Cretaceous–Paleogene boundary.
Many mostly fragmentary fossils, especially of small vertebrates, are known from the formation. Indeterminate theropod and pterosaur remains have been recovered from the formation, as well as dinosaur eggs. The mammal genera Deccanolestes, Sahnitherium, Bharattherium, Indoclemensia, Indotriconodon and Kharmerungulatum have been recovered from several localities. The Early Eocene-aged Bamanbor locality in Gujarat preserves articulated freshwater fish specimens. A rich plant flora is known from the formation.
Although often thought of as a contemporaneous unit that was formed in a single rapid eruption event, more studies that date the age of the volcanic beds indicate that the Deccan Traps did not erupt all at once. Instead, different portions appear to have erupted during different periods of time. This means that the Intertrappean Beds are best understood as a group of different volcanic-associate formations of varying ages.
Kale et al (2020) divided the group into the following provinces:
Mittal et al (2021) divided the group into the following provinces:
Kale et al (2020) divided the group as follows. Subgroups/formations are classified based on oldest to youngest.
Kale et al (2020) divided the group as follows. Subgroups/formations are classified based on oldest to youngest.
Within the newly defined Saurhastra Group (age: Paleocene to early Eocene), the following divisions were found by Patel & Shah (2023):