Where: New Castle County, Delaware (39.6° N, 75.7° W: paleocoordinates 39.0° N, 45.6° W)
• coordinate estimated from map
When: Marshalltown Formation (Matawan Group), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)
• formation-level stratigraphic resolution
Environment/lithology: terrestrial; fine-grained, glauconitic, gray, green, silty, sandy sandstone
•s and. I t ha s yi e lded mos a s aur , tur t l e , and hadros aur
•ma t e r i a l . I t cont a ins the mos t dive r s e f auna of sha rk
•ma t e r i a l . The r e a r e a l so abundant l a rge pe l e cypods .
•The forma t ion wa s depos i t ed in a sha l low, open ma r ine ,
•pos s ibly embayed a r e a .
Size class: macrofossils
Primary reference: E. M. Lauginiger and E. F. Hartstein. 1983. A guide to fossil sharks, skates, and rays from the Chesapeake and Delaware Canal area, Delaware. Open File Report - Delaware Geological Survey 21:1-63 [M. Uhen/M. Shalap/M. Shalap]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 126810: authorized by Mark Uhen, entered by Margaret Shalap on 18.04.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
| Chondrichthyes | |
|
Squatina hassei Leriche 1929 angel shark | |
|
Rhombodus levis Cappetta and Case 1975 stingray | |
|
Brachyrhizodus wichitaensis Romer 1942 eagle ray | |
|
Ptychotrygon vermiculata Cappetta 1975 ray | |
|
Ischyrhiza mira Leidy 1856 ray | |
|
Pseudohypolophus sp. Cappetta and Case 1975 guitarfish | |
|
Rhinobatos casieri Herman 1977 guitarfish | |
|
Pseudocorax granti Cappetta and Case 1975 mackerel shark | |
|
Scapanorhynchus texanus Roemer 1852 goblin shark | |
"Hypotodus aculeatus" = Odontaspis aculeatus
"Hypotodus aculeatus" = Odontaspis aculeatus Cappetta and Case 1975 sand tiger shark | |
|
Squalicorax pristodontus Agassiz 1835 crow shark
Squalicorax kaupi Agassiz 1843 crow shark | |
"Cretolamna appendiculata" = Cretalamna appendiculata
"Cretolamna appendiculata" = Cretalamna appendiculata Agassiz 1835 mackerel shark Cretolamna appendiculata lata
| |
"Plicatolamna arcuata" = Archaeolamna kopingensis
"Plicatolamna arcuata" = Archaeolamna kopingensis Davis 1890 mackerel shark | |
"Odontaspis holmdelensis" = Carcharias holmdelensis, "Odontaspis samhammeri" = Carcharias samhammeri
"Odontaspis holmdelensis" = Carcharias holmdelensis Cappetta and Case 1975 sand shark
"Odontaspis samhammeri" = Carcharias samhammeri Cappetta and Case 1975 sand shark | |
|
Paranomotodon agustidens thresher shark | |
"Ginglymostoma globidens" = Plicatoscyllium globidens
"Ginglymostoma globidens" = Plicatoscyllium globidens Cappetta and Case 1975 nurse shark | |
|
Hybodus sp. Agassiz 1834 elasmobranch | |
|
Lonchidion babulskii Cappetta and Case 1975 elasmobranch | |