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Showing results for tags 'eagle ford group'.
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One of my smaller slabs from a construction site in the Tarrant formation had a few interesting little fossils embedded that I can’t identify without trying to extract them. Any ideas? Or not a fossil? The Tarrant formation, south Tarrant County TX.
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From the album: Lance's album
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- 2
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- eagle ford group
- kamp ranch
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Exploring a nice sample of Post Oak Creek micro matrix was a new fossil adventure for me. Each new matrix comes with an additional learning curve, and I have managed to identify most of the finds in this one with the help of the excellent collections of fellow TFF members: @ThePhysicist, @JamieLynn, @EPIKLULSXDDDDD, @Jared C, and the informed opinions of @Al Dente and @MarcoSr to name a few. I am also an avid collector of PDFs regarding each new matrix that I explore. I could use some help with these 4 finds. The scale is 1mm in every image. I am having trouble deciding if they are Onchopristis dunklei or Ischyrhiza mira, or something else altogether… Thanks for looking
- 16 replies
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- 5
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- cretaceous
- eagle ford group
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From the album: Squamates
When I initially found this I was hoping it was Mosasaurid, however upon some reading, I decided it's more likely to be a sister group squamate. In particular, the labial sulcus convinced me it is probably C. crassidens (see Caldwell 1999). It is however much larger than any Coniasaurus teeth I've seen published. -
From the album: Post Oak Creek
I'm pretty sure these are S. raphiodon teeth. They are much smaller than S. texanus with a narrow main cusp and finer striations than S. texanus. Compare: http://oceansofkansas.com/sharks/Kansas/shscap3.jpg -
From the album: Post Oak Creek
I'm fairly certain this is a posterior Cretodus - a shark known for producing Texas-sized teeth! At just 1 mm tall, this may be the smallest Cretodus tooth possible. -
From the album: Post Oak Creek
The famous "ginsu shark" is a rarer species that can be found here. This is a lateral position; a tooth farther back in the mouth. I've only found a handful and none are complete. -
From the album: Post Oak Creek
Symphyseal teeth are found in the midline of the shark's jaw. They are usually small and squashed-looking. Since only a few rows produce these teeth, they are much rarer than other positions. -
From the album: Post Oak Creek
The fossils in the creek can have varying levels of preservation: from the pristine glassy enamel seen at the top, to more river-worn seen below. -
From the album: Post Oak Creek
These oysters are common in the creek, and support the Turonian age of the fossils. -
From the album: Post Oak Creek
These oysters are common in the creek, and support the Turonian age of the fossils. -
From the album: Post Oak Creek
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I went back to the same spot today as last week and cleaned up.
- 23 replies
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- 17
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- eagle ford group
- ellis county
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From the album: Sharks
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- 1
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- cretoxyrhina
- cretoxyrhina mantelli
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I'm a rookie. This is my second post. I've been out on two "expeditions" and made some interesting finds. When I picked up this fossil?, I noticed it was caulked on the back side, I found that perplexing. North East Texas, Fannin County, Eagle Ford Group, Ozan Formation, North Sulfur River Bed. It appears to be a vertebra. Please help identify. Thanks!
- 17 replies
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- 1
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- eagle ford group
- north sulfur river
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I'm a rookie. This is my first post. I've been out on two "expeditions" and made some interesting finds. North East Texas, Fannin County, Eagle Ford Group, Ozan Formation, North Sulfur River Bed. It appears to be a fossil tooth. Please help identify. Thanks!
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From the album: Cretaceous Shark Teeth
Cretodus crassidens from Eagle Ford Group. Cedar Hill, Texas. -
From the album: Cretaceous Shark Teeth
Cretodus crassidens from Eagle Ford Group. Cedar Hill, Texas. -
From the album: Cretaceous Shark Teeth
Texas Cretalamna with moderate pathologies, from Britton Formation, Eagle Ford Group. -
From the album: Cretaceous Shark Teeth
Texas Cretalamna with moderate pathologies, from Britton Formation, Eagle Ford Group. -
On Sunday afternoon I went out with Keith Minor to a North Texas site exposing the lower Arcadia Park formation and (possibly?) the top of the Britton Formation (lower Turonian, upper Cenomanian respectively). The hunt almost never happened after various storm cells were menacing us and the high winds were thrusting cranes into sky scrapers and whipping up emphysema inducing dust clouds. Yet, even though everyone around us was getting Kansas blown at them, we were only exposed to the high winds and rain so cold and blown so hard that it felt almost like hail. But that lasted for only a few minutes, leaving the rest of the day to muck around in the Turonian while the winds blew most of the clouds away by hunt’s end. The Kamp Ranch Limestone is exposed very nicely at the site, as well as meters of shale beds above and below it, making a short study of the successive stratification obligatory. FIG 1: The roughly 38 cm (15 inch) thick Kamp Ranch jutting out amongst the soft shale and clay above and below it. The clouds foretell the showers to befall us. (ID request incoming)
- 13 replies
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- 4
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- 92 mya
- aracia park formation
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I recently went hunting for my first time in the Turonian Arcadia Park Formation, an Eagle Ford group shale formation in North Texas. I found some great fossils, but many of them are fragile. I found a Worthoceras sp. specimen in matrix that seems to be on the verge of falling apart, and a very small Metoicoceras sp. specimen in a similar situation. They both have the nacreous shell preserved. Many of the other ammonites that I found tend to flake bits of the white shell while I am handling them. What can I use to consolidate the specimens so that they don’t fall apart and so that the shell doesn’t flake off? Will the consolidants dampen the beautiful iridescence of the shells? Here the two most fragile specimens, the Worthoceras sp. and the small Metoicoceras sp.: FIG 1: Worthoceras sp. FIG 2: Metoicoceras sp.
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I know this is a concretion, but I think it is so cool looking. It has weathered so differently than almost any other concretion I have ever seen. Most layers of this type of material come off in a lot thicker layers. It is possible that is just how it weathered, but I am wondering if there is more to it than that. The layers are so thin and fine. I found yesterday while out hunting in a new favorite spot in the Britton Formation of the Eagle Ford group in Collin county Texas with Joe AKA @Fruitbat. The area I found it in is full of concretions. Many of them have fossils inside of them, but they’re a dark, brick red. The fossils are generally cepholopods, both ammonite and baculite, Inoceramus clams, other pelecypods and gastropods. This concretion is from a layer above the brick red concretion layer I think. I have concretions from all over. Some are cool colors and shapes and some have fossils inside, like my Mazon fossils and also Carboniferous ones I collected in Oklahoma. Also those that I’ve collected in the North Sulfur River and Britton Formation, but this one is unique it it’s own class. Any thoughts on it would be appreciated. It seems like concretions come up so often we ought to have a concretion section on TFF. Of course most of them come up in the fossil ID section. Anyone know the term for this type of concretion? I assume it formed by repeated thin layers being added on slowly over time, which now are eroding away. Thing is I didn’t find any others like it. I’ve been to the area 3 times in the last week. Why would just one concretion be like that? Side 1 Side 2 One of the long edges. The other is flat and solid looking rock, kind of like the bottom end of this one. End 1 different angle that looks a lot like wood, but must be just cool layering and weathering effects. End 2 the typical layered concretion look.
- 28 replies
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- 2
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- britton formation
- concretion
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Here is a prep I did of a Notopocorystes (=Ferroranina dichrous) nodule (Eagle Ford Group, Late-Cretaceous, Texas) that I got from @Suvi in a fossil trade. This particular specimen had its limitations in terms of missing legs and parts of carapace. I think it is a molt (note what looks like disarticulated ventral exoskeleton on left of top center photo). Luckily, she included several more nodules that may have more complete specimens. This was a good practice one.
- 12 replies
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- 3
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- cretaceous
- eagle ford group
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Found this nice pliosaur tooth in Tarrant county, Texas in the Tarrant or Britton Formation.
- 18 replies
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- 9
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- eagle ford group
- plisosaur
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