This post is meant to get your eye familiar with “seeing” receptaculitids (or recepts as most people call them), also called Sunflower Sponges. Although, the latest thinking is that they are an algae.
NOTE OF INTEREST: Several decades ago these were reclassified as FISHERITES – However, for whatever reason the renaming hasn’t caught on yet and most fossil collectors are still using the name Receptaculitids.
Complete recepts are rather unusual and on ebay I have seen them sell for from $30 to $75 depending on size and condition. Condition being the most important factor. They weather very quickly.
I found this on Google Images and thought it was fascinating!
Nearly all of the pictures you can make larger for closer examination by tapping them. Not large enough? On most computers there is a “view” function in the upper left hand corner, try 200% or 400% for closer examination.
I have collected, or found and can’t collect, all of these in the last 12 months.
Fillmore County, MN
These next three images are the best preserved piece of recept
I have ever found showing the internal structure of the fossil.
Recepticulitids Hang Out Together!
This is pretty awesome!
I found at least 12 whole recepts in a dry wash across from the
last road cut in the “Village of Fillmore Area Road Cuts” post:
Note the fenceline supporting posts? Right across from there in the dry wash!