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| Group | Order | Common | count |
|---|---|---|---|
Cidaroida |
1 | ||
Euechinoidea |
1 | ||
Phymosomatoida |
1 | ||
Salenioida |
1 | ||
Spatangoida |
Heart Urchins | 5 | |
zNone |
7 |
>Order: Cidaroida
Formation: GrahamThrifty
Jack County | J1-778
>Order: Euechinoidea
Formation: Walnut
Travis County | T1-700
>Order: Phymosomatoida
Formation: Buda
Williamson County | W2-737
>Order: Salenioida
Formation: Buda
Williamson County | W2-580
>Order: Spatangoida
Formation: Buda
Williamson County | W2-738
Formation: Buda
Williamson County | W2-771
Formation: Glen Rose
Bandera County | B1-715
Formation: Austin Chalk
Williamson County | W1-774
Formation: Austin Chalk
Travis County | W1-511
>Order: zNone
Formation: Buda
Williamson County | W2-642
Formation: Buda
Travis County | T2-644
Formation: Buda
Williamson County | W2-769
Formation: Austin Chalk
Williamson County | W1-724
Formation: Fort Terrett
Kerr County | K1-685
Formation: Fort Terrett
Kerr County | K1-66
Formation: Glen Rose
Comal County | 189
There are no entries for this topic yet.
| Period | Formation | count |
|---|---|---|
| Cretaceous | Austin Chalk | 3 |
| Cretaceous | Buda | 7 |
| Cretaceous | Fort Terrett | 2 |
| Cretaceous | Glen Rose | 2 |
| Cretaceous | Walnut | 1 |
| Pennsylvanian | GrahamThrifty | 1 |