Thursday, 25 September 2025

A Sharks have been on Earth longer than trees.

 A



That’s true! ๐Ÿฆˆ๐ŸŒณ

Sharks have been around for over 400 million years, appearing in the fossil record long before trees existed. Trees, as we know them today, didn’t show up until about 350 million years ago, during the late Devonian period.

So for around 50 million years, sharks were swimming the oceans before the first true trees ever took root on land.

Want me to put together a quick timeline comparison so you can see how sharks, trees, and other major life forms line up in Earth’s history?


A

Perfect! Here’s a simplified timeline to compare sharks, trees, and some other milestones in Earth’s history:


๐ŸŒ Timeline of Sharks vs. Trees

~4.5 billion years agoEarth forms.
~3.5 billion years ago – First evidence of microbial life.
~600 million years ago – First multicellular animals.


~450 million years ago (Ordovician Period)
➡️ Early ancestors of sharks appear (jawed fish).

~400 million years ago (Devonian Period – “Age of Fishes”)
➡️ True sharks develop with recognizable features (cartilaginous skeletons, multiple rows of teeth).


~385 million years ago (Mid-Devonian)
➡️ First forests with primitive plants.

~350 million years ago (Late Devonian–Carboniferous Period)
➡️ The first true trees (like Archaeopteris) spread widely on land.


~230 million years ago (Triassic Period)
➡️ First dinosaurs appear.

~65 million years ago (end of Cretaceous)
➡️ Dinosaurs go extinct — sharks survive.

~200,000 years ago
➡️ First Homo sapiens (modern humans).


๐Ÿ‘‰ So sharks are about 50 million years older than trees, and they’ve also outlived dinosaurs, ice ages, and mass extinctions.

Would you like me to make a visual timeline chart (like a clean infographic) to show this comparison more clearly?


A

Great question! ๐ŸŒธ

Flowering plants (called angiosperms) arrived much later than trees and sharks. Here’s the timeline:

  • ~140–130 million years ago (Early Cretaceous Period) → The earliest flowering plants appear.

  • ~100 million years ago → Flowering plants begin to spread widely, co-evolving with pollinators like insects.

  • ~66 million years ago → After the dinosaur extinction, flowering plants diversify rapidly and become the dominant land plants on Earth.

So to put it in perspective:

  • Sharks: ~450 million years ago

  • Trees: ~350 million years ago

  • Flowering plants: ~130 million years ago

That means sharks are more than 300 million years older than flowers! ๐ŸŒŠ๐Ÿฆˆ๐ŸŒธ

Would you like me to add flowering plants to the timeline infographic idea we talked about earlier?


A

SMT 

Excellent one! ๐ŸŒฒ

Conifers (cone-bearing plants like pines, firs, and spruces) showed up before flowering plants but after the first true trees. Here’s their place in the timeline:

  • ~320 million years ago (Late Carboniferous Period) → The earliest conifers appear.

  • ~300–250 million years ago (Permian Period) → Conifers diversify and become dominant in many landscapes.

  • They thrived especially during the Mesozoic Era (252–66 million years ago) — the Age of Conifers — when dinosaurs roamed the Earth.

So in order of appearance:

  • ๐Ÿฆˆ Sharks → ~450 million years ago

  • ๐ŸŒณ First true trees → ~350 million years ago

  • ๐ŸŒฒ Conifers → ~320 million years ago

  • ๐ŸŒธ Flowering plants → ~130 million years ago

Would you like me to stack all of these into one clean evolutionary timeline chart (with sharks, trees, conifers, and flowers) so you can see how they line up at a glance?

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