Jump to content

Asteroidea (starfish) from Ordovician of Pennsylvania


traveltip1

Recommended Posts

Saturday dawned a bit chilly, but the sun peeped out from lingering clouds to brighten a stellar day of fossil prospecting in the Ordovician bedrock of central  Pennsylvania. We strolled along the limestone ground, like beachcombers peering in shallow shore waters, when my relatively newbie friend exclaimed, "That looks like a starfish!"

Bingo...Indeed it was an Asteroidea. 

I'm guessing it's genus Urasterellaand I wonder how rare is this find.

The specimen's longest ray is 1.75 inches (4.45 cm).

Photos are the rock slab and a closeup of the mostly complete starfish, as found.

 

20201101_075145.jpg

20201101_231524.jpg

  • I found this Informative 21
Link to comment
Share on other sites

:DittoSign:

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

:wub::drool::envy:
 

Emojis are worth a thousand words! Great find. Congrats! 
 

:yay-smiley-1:

The good thing about science is that it's true whether or not you believe in it.  -Neil deGrasse Tyson

 

Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy)

Link to comment
Share on other sites

I'm like @Monica i'd like very much to find one, for now i just found ossicles.:tiphat:

theme-celtique.png.bbc4d5765974b5daba0607d157eecfed.png.7c09081f292875c94595c562a862958c.png

"On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry)

"We only well see with the heart, the essential is invisible for the eyes."

 

In memory of Doren

photo-thumb-12286.jpg.878620deab804c0e4e53f3eab4625b4c.jpg

Link to comment
Share on other sites

Awesome find! Congratulations!

Follow me on Instagram (@fossil_mike) to check out my personal collection of fossils collected and acquired over more than 15 years of fossil hunting!

 

 

 

Link to comment
Share on other sites

cool.  I don 't know anything about this formation, but I suspect it is a pretty rare find.  In general, starfish fossils are rare.

  • I found this Informative 1
Link to comment
Share on other sites

I literally just sprayed coffee all over my keyboard and screen when the photo loaded. This is one of the best I have seen in years.

 

I agree with Don, more fomration data would be awesome to see! (without giving away your huntin' spot of course!)

  • I found this Informative 1
Link to comment
Share on other sites

Spectacular find..it might even benefit from a bit of a clean up if you know someone with the right equipment. You would need to be very careful though as the details on these guys are easily destroyed.

  • I found this Informative 1
Link to comment
Share on other sites

12 hours ago, traveltip1 said:

I'm guessing it's genus Urasterellaand I wonder how rare is this find.

" The fossil record for starfish is ancient, dating back to the Ordovician around 450 million years ago, but it is rather sparse, as starfish tend to disintegrate after death. Only the ossicles and spines of the animal are likely to be preserved, making remains hard to locate. " 

  • I found this Informative 2
Link to comment
Share on other sites

I received an expert opinion that the genus is likely Urasterella. 

 

 

 

1 hour ago, Creek - Don said:

" The fossil record for starfish is ancient, dating back to the Ordovician around 450 million years ago, but it is rather sparse, as starfish tend to disintegrate after death. Only the ossicles and spines of the animal are likely to be preserved, making remains hard to locate. " 

 

  • I found this Informative 2
Link to comment
Share on other sites

2 hours ago, Malcolmt said:

Spectacular find..it might even benefit from a bit of a clean up if you know someone with the right equipment. You would need to be very careful though as the details on these guys are easily destroyed.

Agreed. This one is special enough I'd pay a pro for the prep.

Link to comment
Share on other sites

Ridiculously cool fossil. The conditions that made it possible to be preserved were rare. I would go back and scour that site looking for that particular bedding plane. Could be more!

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...