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Showing results for tags 'atco formation'.
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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Hi folks! I'm relatively new to the Dallas area (about 4 years now) and very new to rockhounding/fossil hunting. I've done some of the basic hunting in the fossil parks, but I'm looking to branch out and find new things. I keep seeing the Atco and Kamp Ranch names thrown around, but I have no idea how to actually locate them. I understand that they are part of larger formations, but as someone who doesn't have any training in natural sciences I'm not really sure where to look. The few times I've attempted to find somewhere off the beaten path I've been unsuccessful at finding anything besides calcite. If anyone is willing to share any helpful hints or trusty references I would appreciate it!
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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- atco formation
- chiloscyllium
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Shark Scapanorhynchus raphiodon Atco Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils : Sharks and Rays
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- atco formation
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From the album: Self-Collected
North Texas. Atco formation. Upper Coniacian. Found at a site further to to south than my normal Atco sites. It is larger and just generally more robust than any of my other Scaphites semicostatus specimens. Compare with the S. semicostatus holotype here: http://www.thefossilforum.com/index.php?/gallery/image/57475-scaphites-semicostatus-holotype/&context=widget-
- atco formation
- north texas
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From the album: Self-Collected
North Texas. Atco formation. Upper Coniacian. Found at a site further to to south than my normal Atco sites. It is larger and just generally more robust than any of my other Scaphites semicostatus specimens. Compare with the S. semicostatus holotype here:-
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- north texas
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Scaphites sp. (semicostatus?) next to smaller confirmed S. semicostatus
Heteromorph posted a gallery image in Member Collections
From the album: Self-Collected
North Texas. Atco formation. Upper Coniacian. Found at a site further to to south than my normal Atco sites. It is larger and just generally more robust than any of my other Scaphites semicostatus specimens. The smaller S. semicostatus (bottom) came from one of my normal Atco sites. Compare with the S. semicostatus holotype here: http://www.thefossilforum.com/index.php?/gallery/image/57475-scaphites-semicostatus-holotype/&context=widget-
- atco formation
- north texas
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From the album: Self-Collected
North Texas. Atco formation. Upper Coniacian. Found at a site further to to south than my normal Atco sites. It is larger and just generally more robust than any of my other Scaphites semicostatus specimens. Compare with the S. semicostatus holotype here: http://www.thefossilforum.com/index.php?/gallery/image/57475-scaphites-semicostatus-holotype/&context=widget-
- atco formation
- north texas
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From the album: Self-Collected
North Texas. Atco formation. Upper Coniacian. Found at a site further to to south than my normal Atco sites. It is larger and just generally more robust than any of my other Scaphites semicostatus specimens. Compare with the S. semicostatus holotype here: http://www.thefossilforum.com/index.php?/gallery/image/57475-scaphites-semicostatus-holotype/-
- atco formation
- north texas
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From the album: Self-Collected
North Texas. Atco formation. Upper Coniacian. Found at a site further to to south than my normal Atco sites. It is larger and just generally more robust than any of my other Scaphites semicostatus specimens. You can see some of the tubercles still stuck in the impression. Compare with the S. semicostatus holotype here: http://www.thefossilforum.com/index.php?/gallery/image/57475-scaphites-semicostatus-holotype/-
- atco formation
- north texas
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From the album: Self-Collected
Atco Formation. Upper Coniacian age. North Texas. Specimen 1.-
- atco formation
- cremnoceramus inconstans
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From the album: Self-Collected
Atco Formation. Upper Coniacian age. North Texas. Specimen 1.-
- atco formation
- cremnoceramus inconstans
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From the album: Self-Collected
Atco Formation. Upper Coniacian age. North Texas. Specimen 1.-
- atco formation
- cremnoceramus inconstans
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From the album: Self-Collected
Atco Formation. Upper Coniacian age. North Texas. Specimen 1.-
- atco formation
- cremnoceramus inconstans
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From the album: Self-Collected
Atco Formation. Upper Coniacian age. North Texas. Specimen 1.-
- atco formation
- cremnoceramus inconstans
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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- atco formation
- cretaceous
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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- atco formation
- cretaceous
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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- atco formation
- cretaceous
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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- atco formation
- cretaceous
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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Shark Hybodont Meristodonoides sp, Atco Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils : Sharks and Rays
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Hi everyone! I went to Post Oak Creek, Texas a few weeks ago and got a decent haul. Including three teeth that I think are from some rare species that I wanted to confirm my id on. I think the first two are Cretoxyrhina mantelii and the third is Protolamna. I'm particularly unsure with the second one since it seems to have a slight nutrient groove. The first one also has damage where there would have been cusps so I'm not sure if it's a different Cretoxyrhina species or a different genus entirely. I'm fairly certain the creek is Atco formation. I know it's either Turonian or Coniacian
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I’m not really sure I’ll be to get an ID given the condition, size and difficulty in photographing them but I thought I’d try. First tooth. Just over 1mm. This one is from Atco Formation micro mix. There was an Odontaspis on Elasmo that looked somewhat similar but I really don’t know.
- 7 replies
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- atco formation
- cretaceous shark teeth
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In June of 2018, Kieth Minor alerted me to a new apartment complex that was being developed in the middle Atco Formation of North Texas. They were cutting a huge cubic area of rock out of a hillside, piling up multiple large mounds of Atco which seemed to be begging for someone to carefully search out their freshly exposed contents. On the 15th of that month we got to the site, Kieth asked permission of the site foreman for us to carefully take a look around during the crew's work hours, and we made our way into the pit. We were on a mission to save as many ammonites as we could. FIG 1: First impressions.
- 30 replies
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- atco formation
- austin group
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