| Sand Dollars |
|
|
|
| Family Abertellidae |
|
| Abertella aberti |
Early Miocene |
|
|
| Family Clypeasteridae |
|
| Clypeaster oxytaphon |
Oligocene |
| Clypeaster cotteaut |
Oligocene |
| Clypeaster concavus |
Late Miocene |
| Clypeaster crassus |
Late Miocene |
| Clypeaster sunnilandensis |
Late Miocene |
| Clypeaster sudepressus |
Pliocene-Recent |
| Clypeaster rosaceus dalli |
Pliocene |
|
|
| Family Laganidae |
|
| Laganum/Durhamella floridanum |
Eocene |
| Laganum/Durhamella ocalanus |
Eocene |
|
|
| Family Mellitidae |
|
| Encope emarginata |
Late Miocene |
| Encope macrophora |
Late Miocene |
| Encope tamiamiensis |
Late Miocene |
| Encope michelini imperforata |
Late Micoene |
| Leodia seiesperforata |
Pliocene |
| Mellita aclinenesis |
Late Miocene |
| Mellita quinquiesperforata |
Pleistocene |
|
|
| Family Neolaginidae |
|
| Neolagnum dalli |
Eocene |
| Neolagnm durhami |
Eocene |
| Weisbordella cubae |
Eocene |
| Weisbordella johnsoni |
Eocene |
| Wythelli eldridgei |
Eocene |
|
|
| Family Prosecutellidae |
|
| Periarchus lyelli floridanus |
Eocene |
|
|
Sea urchins or biscuits |
|
|
|
| Family Arbaciidae |
|
| Arbacia waccamaw |
Late Miocene |
| Arbacia crenulata |
LateMiocene |
|
|
| Family Phymosomatidae |
|
| Dixieus dixie |
Eocene |
|
|
| Family Cassidulidae |
|
| Cassidulus/Rhyncholampas ericsoni |
Eocene |
| Cassidulus/Rhyncholampas trojanus |
Eocene |
| Cassidulus/Rhyncholampas conradi |
Eocene |
| Cassidulus evergladensis /Rhyncholampas |
Pliocene |
| Cassidulus/Rhyncholampas georgensis |
Eocene |
| Cassidulus/Rhyncholampas georgensis globosus |
Eocene |
| Cassidulus/Rhyncholampas gouldii |
Oligocenen |
| Cassidulus/Rhyncholampas sabistonesis |
Late Miocene |
| Cassidulus/Rhyncholampas ayresi |
Pliocene |
|
|
| Family Echinocardium |
|
| Echinocardium orthonotum |
Early Miocene |
| Echinocardium gothicum |
Late Miocene |
|
|
| Family Echinodeidae |
|
| (Subfamily echinoneidae) Amblyphygus americanus |
Eocene |
| (Subfamily Oligopyginae) Oligophygus weatherbyi |
Eocene |
| Oligophygus haldemani |
Eocene |
| Oligophygus phelani |
Eocene |
|
|
| Family Fivularidae |
|
| Fibularia vaughani |
Eocene |
| Echinocgamus chipolanus |
Miocene |
|
|
| Family Lovenidae |
|
| Lovenia Clarki |
Miocene |
|
|
| Family Schizasteridae |
|
| Schizaster ocalanus |
Eocene |
| Schizaster armiger |
Eocene |
| Ditremaster beckeri |
Eocene |
| Agassizia floridana |
Eocene |
| Agassizia mossomi |
Oligocene |
| Agassizia porifera |
Pliocene |
|
|
| Family Spatangidae |
|
| Macropneusters mortoni/cubensis |
Eocene |
| Brissopss Steinhatchee |
Eocene |
| Plagiobrissus curvus |
Eocene |
| Plagiobrissus dixie |
Eocene |
| Eupatagus clevei |
Eocene |
| Eupatagus antillarum |
Eocene |
| Eupatagus Ocalanus |
Eocene |
|
|
| Familiy Toxopneustidae |
|
| Lytechinus variegatus plurituberculatus |
Late Miocene |
| Lytechinu variegatus |
Pliocene - Recent |