Represented mostly by Craspeditidae family, which evolved from Mid-Volgian Dorsoplanitidae and later gave birth to 2 lineages: more typical-looking Craspedites (lots of species) and disc-shaped Garniericeras. The latter evolved from smooth and round Kachpurites, with each evolutionary step becoming more and more flattened to the extent of looking almost 2D.
Late Volgian comprises 3 ammonite zones:
1. Kachpurites fulgens (good sites in Moscow region)
2. Garniericeras catenulatum/ Craspedites subditus (both names in use, sites in Moscow and various Volga regions)
3. Craspedites nodiger (less numerous sites in Moscow (Shmelovka), Kostroma and Samara)
As to preservation, they are usually fragile shells found in watery clay with iridescent nacre of various colors, often green, blue and yellow.
I was inspired a while ago by the artistic activity of some of our members, particularly Kane, to have a go at doing some drawings of my own of specimens from my collection. This has turned into an ongoing project, so I will probably be posting things here fairly regularly.
Here are a few of the 83 teeth I found in an East Texas creek on September 2nd, 2021. This was from a Kincaid Formation outcrop. Most are missing roots, so identification may be tough. I haven't attempted to identify any, but welcome help with that, and will add that to the album.
A variety of Cretaceous Fossils found in Texas. First Group: Ammonites and Nautiloids. I have done my best to identify the species, but am not a professional, just an avid amateur! If you see an incorrect identification, please do not hesitate to contact me!
Mostly Pleistocene age fossils found in the sandy gravel matrix of the Brazos River bed in southeast Texas.
These fossils were found a couple of weeks ago, in August of 2021.
I'm still very much a novice, but I wanted to try my hand at creating my first album.
All identifications are tentative, and I gladly welcome suggestions and corrections.