ammonite suture patterns

nervous system
recent  |  interesting  |  random  |  favorites  |  contacts  |  sets  |  tags:  
ammonite suture patterns
ammonite suture patterns

these dendritic patterns are the line of intersection between the ammonite's shell and its septa, which are the walls it built as it extended its shell. I've posted more information about it in our blog here:
n-e-r-v-o-u-s.com/blog/?p=1176

the fossil is approximately 110 million years old. Jesse gave it to me for the holidays.

© All Rights Reserved
Taken on: December 29, 2010
Tags: Everybody's photos tagged with ammonite ammonite Everybody's photos tagged with suture suture Everybody's photos tagged with pattern pattern more » Everybody's photos tagged with ammonoid ammonoid Everybody's photos tagged with septum septum Everybody's photos tagged with fossil fossil Everybody's photos tagged with rock rock Everybody's photos tagged with cretaceous cretaceous « less
Sets appears in:   • Generative Jigsaw Puzzles    • moo cards    more » • the year 2010    • my favorites    « less
Groups appears in:   • Emergence    • Boing Boing    more » • Closer and Closer Macro Photography -    • Minerals and rocks and fossils    • Fossils    • Patterns in nature    • Natural PATTERNS, Shapes, and Textures (curated)    • * ALL COLLECTIONS - and PATTERNS, TEXTURES, DETAILED STUDIES *    • Nature In Lace. ♥ ♥Always award 3 others whenever you post.    • Nature Nerds    « less
Camera: Pentax K10D, f/22.0, 1/6 sec, 55mm (=82mm), ISO 400 (more info) (hide info)
Camera: Pentax K10D
Lens: A Series Lens
Aperture: f/22.0
Exposure Time: 0.167 sec (1/6)
Focal Length: 55mm (35mm equivalent: 82mm)
ISO: 400
Exposure Bias: -3/2 EV
Flash: Off, Did not fire
Exposure Program: Aperture-priority AE
Exposure Mode: Manual
Metering Mode: Multi-segment
White Balance: Manual
Contrast: High
Sharpness: Hard
Color Space: Uncalibrated
Software: K10D Ver 1.30
Show full info
Stats: 6,947 views / 16 comments