Search the Community
Showing results for tags 'grayson formation'.
-
After finding my pyritized ichthyosaur vertebra in the Grayson Formation last Friday, I decided that it was time to revisit previous exposures I had first discovered three years ago with a fresh set of eyes. I made a trip to several of those spots the following Saturday and one of the fossils I found is another vertebra. I initially wrote it off as a fish vertebra because it was so thick, then decided it wasn't flaky enough to be fish and the two holes on one side meant it must be a shark centrum, then thought maybe it could be an ichthyosaur caudal, and as of now I think it might be a plesios
-
Here are some of my finds from spending a few hours on Wednesday, October 26th, in the Graysonites wacoense Zone of the Grayson Formation, Washita Group of north Texas (Early Cenomanian, ~97mya). This particular site exposes a micromorph layer full of thousands of tiny dwarfed Mariella bosquensis and M. rhacioformis ammonites plus a wealth of other taxa like various urchins, brittlestar fragments, shark teeth, many gastropods & pelecypods, etc. Those familiar with the Del Rio exposures of further south in central Texas (particularly the now closed-to-public Waco Pit in McLennan County), sh- 6 replies
-
- 18
-
-
-
- mariella
- grayson formation
- (and 6 more)
-
From the album: Lake Waco Research Area
Cidaris hemigranosus (?) -
From the album: Lake Waco Research Area
Collected over several trips to the research area; shows the diversity of fossils that can be found within the pit. Present are two ammonites (the Submantelliceras is the largest I've ever seen), a heteromorph, a brittelstar central disc with the bases of the arms still attached, internal molds of two gastropods and a small bivalve, an anterior tooth from Cretalamna appendiculata, a small cidarid echinoid, a fish/shark vertebra, a bryozoan encrusted fragment of oyster shell, and one half of a squid beak. -
From the album: Lake Waco Research Area
Possibly Protosphyraena, Pachyrhizodus, or a lateral Enchodus tooth. -
From the album: Lake Waco Research Area
Top row (from left to right): Cretodus semiplicatus, Scapanorhynchus texanus, Scapanorhynchus raphiodon, Carcharias amonensis Second row: Cretalamna appendiculata (anterior teeth) Third row: Cretalamna appendiculata (lateral teeth) -
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
Anterior tooth -
From the album: Lake Waco Research Area
Anterior tooth -
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
-
From the album: McClennan County, Texas
Sea urchin; inner view of half of the aboral (bottom) side of the test. -
From the album: Lake Waco Research Area
Anterior tooth-
- 1
-
-
- grayson formation
- del rio clay
- (and 3 more)
-
From the album: Lake Waco Research Area
Anterior tooth -
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
Anterior tooth -
From the album: Lake Waco Research Area
Anterior tooth -
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
Anterior tooth -
From the album: Lake Waco Research Area
Anterior tooth -
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
-
From the album: Lake Waco Research Area
