Holmdel (Cretaceous to of the United States)

Where: Monmouth County, New Jersey (40.4° N, 74.2° W: paleocoordinates 39.8° N, 45.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mount Laurel Formation (Monmouth Group), Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

• top of Mt. Laurel (perhaps also bottom of Navesink)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; glauconitic, brown sandstone

Size class: macrofossils

Collection methods: surface (in situ),

Primary reference: W. B. Gallagher. 1984. Paleoecology of the Delaware Valley region. Part II: Cretaceous to Quartenary. The Mosasaur 2:9-43 [M. Uhen/M. Shalap/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 124933: authorized by Mark Uhen, entered by Mark Uhen on 29.02.2012, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Callianassidae
Callianassa mortoni Pilsbry 1901 decapod
Polychaeta
 Serpulimorpha -
Bivalvia
 Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801 clam
 Pectinida - Pectinoidae
"Pecten (Neitha) quinquecostata" = Neithea quinquecostata
"Pecten (Neitha) quinquecostata" = Neithea quinquecostata Sowerby 1814 scallop
 Ostreida - Gryphaeidae
Exogyra sp. Say 1820 oyster
 Ostreida - Flemingostreidae
"Ostrea falcata" = Agerostrea falcata
"Ostrea falcata" = Agerostrea falcata Morton 1827 oyster
Gastropoda
 Neogastropoda - Volutidae
 Naticoidea - Naticidae
"Lunatia halli" = Euspira halli, Gyrodes sp.
"Lunatia halli" = Euspira halli Gabb 1860 moon snail
Gyrodes sp. Conrad 1860 moon snail
 Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799 turret shell
Cephalopoda
 Belemnitida - Belemnitellidae
Chondrichthyes
 Sclerorhynchiformes - Sclerorhynchidae
Ischyrhiza mira Leidy 1856 cartilaginous fish
 Lamniformes - Anacoracidae
Squalicorax kaupi Agassiz 1843 crow shark
 Lamniformes - Cretoxyrhinidae
Cretolamna appendiculata Agassiz 1843 mackerel shark
 Lamniformes - Odontaspididae
"Odontaspis holmdelensis" = Synodontaspis holmdelensis
"Odontaspis holmdelensis" = Synodontaspis holmdelensis Cappetta and Case 1975 sand tiger shark
 Euselachii - Mitsukurinidae
Scapanorhynchus texanus Roemer 1852 goblin shark
 Chimaeriformes - Callorhynchidae
Ischyodus sp. Egerton 1843 plownose chimaera
Reptilia
 Neornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
MAPS 1214; fragment of distal end of tibia
Demospongea
 Clavulina - Clionaidae
Cliona aretacica demosponge