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icon: jurassic-saga:gifs/fossils.gif
history:
  - '0.1': And start
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# Fossils & Remains

**Fossils** and **Remains** are the two primary sources of biological material in *Jurassic Saga*.
Both are essential for crafting, progression, and extracting DNA used in creature resurrection.

- **Remains** come from *living creatures* (mob drops).
- **Fossils** come from *ancient geological deposits* (underground fossil ores).

Together, they form the backbone of the mod’s genetic system.

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## Remains

Remains are biological leftovers obtained from specific creatures.  
Each species drops its own unique **Remains**, which can be processed for DNA or used in crafting.

### Obtaining Remains
- Dropped by defeating certain creatures.
- Each species has a unique Remains item
- e.g., *Tyrannosaurus Remains*, *Velociraptor Remains*.

### Usage of Remains

#### Crafting
- Used in various recipes, including the [**Guidebook**]($content/items/guidebook).

#### Genetic Analyzer
- Insert Remains to extract a **random percentage of DNA** from that exact species.
- DNA yield varies; collecting multiple samples increases accuracy and completion.

### Notes
- **Species‑specific**  Remains cannot be mixed or substituted.
- A core component of the early‑game genetic progression loop.

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## Fossils

Fossils are ancient biological traces preserved in stone and found as **Fossil Ores**.  
Each fossil ore corresponds to a specific **geological era** and **environment**:

- **Marine**  oceanic or coastal organisms
- **Fluvial**  river, swamp, or floodplain organisms

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### Types of Fossil Ores

#### Carboniferous
- Carboniferous Marine Fossil Ore
- Carboniferous Fluvial Fossil Ore

#### Permian
- Permian Marine Fossil Ore
- Permian Fluvial Fossil Ore

#### Triassic
- Triassic Marine Fossil Ore
- Triassic Fluvial Fossil Ore

#### Jurassic
- Jurassic Marine Fossil Ore
- Jurassic Fluvial Fossil Ore

#### Cretaceous
- Cretaceous Marine Fossil Ore
- Cretaceous Fluvial Fossil Ore

#### Paleogene
- Paleogene Marine Fossil Ore
- Paleogene Fluvial Fossil Ore

#### Neogene
- Neogene Marine Fossil Ore
- Neogene Fluvial Fossil Ore

#### Quaternary
- Quaternary Fluvial Fossil Ore

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### Example Fossil Drops

Drop tables vary depending on the fossil type.  
Below are sample results from testing **64 blocks** of each ore:

#### Carboniferous Marine Fossil Ore
- 28.8% Cobblestone
- 29.4% Bones
- 9.4% Carboniferous Marine Deposit
- 32.5% Flint

#### Carboniferous Fluvial Fossil Ore
- 18.5% Cobblestone
- 8.1% Carboniferous Plant Fossil
- 21.3% Flint
- 10.9% Carboniferous Megabug Part in Amber
- 14.7% Bones
- 26.5% Carboniferous Plants in Amber

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### Y‑Level Generation

Current known generation levels:

- **Carboniferous Marine Fossil Ore**  Unknown
- **Carboniferous Fluvial Fossil Ore**  Unknown

*(More Y‑level data will be added as exploration continues.)*

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### Trivia