Jump to content

Cretaceous Bird ?


Hipockets

Recommended Posts

Aside from being broken (common enough for bird bones), I don't really see that this one has been treated that harshly.

post-423-0-67774000-1411234506_thumb.jpg

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

Link to comment
Share on other sites

Overall the bone is in good shape, I completely agree. But the broken edge looks rounded to me. That is not what I was expect to see. To end up in a marine deposit, especially one with such special preservation potential, it would most likely be a carcass that floated and then became disarticulated and fell to the sea floor and was buried and fossilized. For the rounding, one would expect that the bone was originally deposited in a higher energy environment, eg close to shore or on land. Those two scenarios, and the description of the pit sediments and depositional history, just don't add up without evoking very unusual scenarios. Not trying to rain on anyone's parade or be negative, just trying to apply some principles and test their usefulness in determinations like these. Hopefully we will have a concrete answer soon.

Aside from being broken (common enough for bird bones), I don't really see that this one has been treated that harshly.

attachicon.gif~.JPG

---Wie Wasser schleift den Stein, wir steigen und fallen---

Link to comment
Share on other sites

With the way I parade my innate skepticism on these boards, I am not about to criticize your clearly reasoned caution. :)

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

Link to comment
Share on other sites

Thanks for all the input and keeping this interesting. I don't see the roundage spoken of on the broken end, I would say it is jagged , sharp and serrated . The posted pictures are not that great and I will try to locate a camera with better macro and get posted as soon as I can. I am not experienced enough in identifying "equipment transported material " ( no tire tracks across it) :) I do understand what your saying and as anyone in my shoes would , I have to keep hope, and at the same time welcome all opinions. Thanks again.

Link to comment
Share on other sites

The photographs just are not adequate to say definitely if there is rounding of the broken edges or not. Other than that one fact, the bones looks to me identical to the isolated, partial bird bones I've found in the Cretaceous greensands of New Jersey.

http://www.sil.si.edu/smithsoniancontributions/Paleobiology/pdf_hi/SCtP-0063.pdf

  • I found this Informative 1

The plural of "anecdote" is not "evidence".

Link to comment
Share on other sites

Thank you for the clarification on the geology of this pit. Do you guys find any vertebrate fossils in this pit?

vertebrate fossils were extremely rare at this site initially. Like most of the sites in the Castle Hayne and Peedee though vertebrate finds increase with sediment exposure time. Everything vertebrate is naturally encrusted with epis and mineral crusts in these non lag situations. After exposure to weathering the crusts and epis are gone exposing the vertebrate remains. There are of course lags within the Castle hayne and at the top and bottom of the Peedee where vertebrate remains are abundant (and worn). Another good analogy is the early Pleistocene Waccamaw Formation. To virtually all collectors this is a shell deposit and vertebrate remains are rarely found. However, once the material is dumped onto driveways and driven over vertebrate remains become apparent. The same can be said for the terra rosa clay above the shell bed where the shells have been dissolved away.

  • I found this Informative 3
Link to comment
Share on other sites

with the epis, etc, it sounds like bioerosion could definitely account for what I perceived as transport in this case.

vertebrate fossils were extremely rare at this site initially. Like most of the sites in the Castle Hayne and Peedee though vertebrate finds increase with sediment exposure time. Everything vertebrate is naturally encrusted with epis and mineral crusts in these non lag situations. After exposure to weathering the crusts and epis are gone exposing the vertebrate remains. There are of course lags within the Castle hayne and at the top and bottom of the Peedee where vertebrate remains are abundant (and worn). Another good analogy is the early Pleistocene Waccamaw Formation. To virtually all collectors this is a shell deposit and vertebrate remains are rarely found. However, once the material is dumped onto driveways and driven over vertebrate remains become apparent. The same can be said for the terra rosa clay above the shell bed where the shells have been dissolved away.

---Wie Wasser schleift den Stein, wir steigen und fallen---

Link to comment
Share on other sites

oh, I did. Got the screen and shovel out and worked some areas around it. I went back through the area after a good rain. I follow up on that area every time we go. Maybe it will turn up.

Link to comment
Share on other sites

  • 1 year later...

Almost 2 years later I have an ID ! I donated the bone to the Smithsonian 8 months ago and today I was rewarded with the long awaited decision. Dr. Storrs Olson and Dr. Hans Dieter Sues have agreed it is a distal femur , Enaliornithidae ! Pretty rare for this parts from what I have been told.Hats off to these guys and Dave Bohaska who kept me informed. Does anyone have any info or references on these birds ? There is not a lot of info on the web. Thanks

Link to comment
Share on other sites

you MIGHT consult Stephenson for the oysters,Hipocket

(USGS prof. paper 81,available online)

Edited by doushantuo

 

 

 

Link to comment
Share on other sites

Congratulations on the ID. You may want to check out the book Mesozoic Birds: Above the head of Dinosaurs.

Link to comment
Share on other sites

Great job on the donation! Thanks for update.

It's hard to remember why you drained the swamp when your surrounded by alligators.

Link to comment
Share on other sites

Almost 2 years later I have an ID ! I donated the bone to the Smithsonian 8 months ago and today I was rewarded with the long awaited decision. Dr. Storrs Olson and Dr. Hans Dieter Sues have agreed it is a distal femur , Enaliornithidae ! Pretty rare for this parts from what I have been told.Hats off to these guys and Dave Bohaska who kept me informed. Does anyone have any info or references on these birds ? There is not a lot of info on the web. Thanks

Outstanding!

If you'd care to post this in the Paleo Partners' Gallery <LINK>, we have some bling for your profile :)

"There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant

“Try to learn something about everything and everything about something.” - Thomas Henry Huxley

>Paleontology is an evolving science.

>May your wonders never cease!

Link to comment
Share on other sites

Congratulations on conformation of such a rare find.

Mike D'Arcy

Link to comment
Share on other sites

Awesome my friend. I am stoked for you!!!

Bulldozers and dirt Bulldozers and dirt
behind the trailer, my desert
Them red clay piles are heaven on earth
I get my rocks off, bulldozers and dirt

Patterson Hood; Drive-By Truckers

 

image.png.0c956e87cee523facebb6947cb34e842.png May 2016  MOTM.png.61350469b02f439fd4d5d77c2c69da85.png.a47e14d65deb3f8b242019b3a81d8160.png.b42a25e3438348310ba19ce6852f50c1.png May 2012 IPFOTM5.png.fb4f2a268e315c58c5980ed865b39e1f.png.1721b8912c45105152ac70b0ae8303c3.png.2b6263683ee32421d97e7fa481bd418a.pngAug 2013, May 2016, Apr 2020 VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png.af5065d0585e85f4accd8b291bf0cc2e.png.72a83362710033c9bdc8510be7454b66.png.9171036128e7f95de57b6a0f03c491da.png Oct 2022

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
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...