Belair Drive stream, Bowie (Cretaceous of the United States)

Where: Prince George's County, Maryland (39.0° N, 76.7° W: paleocoordinates 39.8° N, 52.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Severn Formation, Maastrichtian (72.1 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; concretionary, pebbly, phosphatic, sideritic, gray sandstone

• "a thin bed of compact pale-gray sand...containing scattered quartz pebbles, dark phosphate lumps, teeth, and large siderite concretions, overlies a dark-gray, dense micaceous silty clay which is the top of the Matawan Formation."

Size classes: macrofossils, mesofossils

Collected by Glaser, Hartstein, Decina, Keil in 1986–1999

Collection methods: surface (float), surface (in situ),

Primary reference: J. D. Glaser. 1979. Collecting fossils in Maryland. Maryland Geological Survey Educational Series 4:1-83 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 83331: authorized by Matthew Carrano, entered by Matthew Carrano on 18.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Ewingia problematica cartilaginous fish
 Squatiniformes - Squatinidae
Squatina hassei Leriche 1929 angel shark
 Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1837 elasmobranch
cephalic hook
 Rajiformes - Rhinobatidae
Rhinobatos sp. Link 1790 guitarfish
 Rajiformes - Rajidae
 Sclerorhynchiformes - Sclerorhynchidae
Ischyrhiza mira Leidy 1856 elasmobranch
Ischyrhiza cf. avonicola Estes 1964 elasmobranch
 Sclerorhynchiformes - Ptychotrygonidae
Ptychotrygon vermiculata Cappetta 1975 elasmobranch
 Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810 whiptail stingray
 Myliobatiformes - Myliobatidae
Myliobatis sp. Cuvier 1816 eagle ray
 Myliobatiformes - Rhombodontidae
Rhombodus binkhorsti Dames 1881 stingray
 Lamniformes - Anacoracidae
Squalicorax kaupi Agassiz 1843 crow shark
Squalicorax pristodontus Agassiz 1843 crow shark
 Lamniformes - Cretoxyrhinidae
Serratolamna serrata mackerel shark
Cretolamna appendiculata Agassiz 1843 mackerel shark
 Lamniformes - Odontaspididae
 Carchariniformes - Triakidae
 Heterodontiformes - Heterodontidae
Heterodontus sp. de Blainville 1816 bullhead shark
 Orectolobiformes - Ginglymostomatidae
Ginglymostoma sp. Müller and Henle 1838 nurse shark
 Orectolobiformes - Hemiscylliidae
 Chimaeriformes - Callorhynchidae
Ischyodus sp. Egerton 1843 plownose chimaera
 Rhomboganoidei -
Hadrodus sp. Leidy 1857 bony fish
 Acipenseriformes -
 Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
Egertonia sp. Cocchi 1866
 Albuliformes - Albulidae
Albulidae indet. Bleeker 1859 bonefish
 Salmoniformes - Enchodontidae
Enchodus ferox Leidy 1855
 Pycnodontiformes - Pycnodontidae
"Pycnodus cf. phaseolus" = Anomoeodus phaseolus
"Pycnodus cf. phaseolus" = Anomoeodus phaseolus Hay 1899
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
 Testudines - Pantrionychidae
Trionyx priscus Cope 1869 turtle
 Testudines - Pancheloniidae
Peritresius ornatus Leidy 1856 turtle
 Avetheropoda - Ornithomimidae
Ornithomimidae indet. Marsh 1890 ornithomimid
pedal phalanx
 Neornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Loricata -
Crocodylia indet. crocodilian
 Crocodylia - Alligatoridae
cf. Allognathosuchus sp. Mook 1921 crocodilian
Bottosaurus harlani Meyer 1832 crocodilian
 Crocodylia -
Deinosuchus rugosus Emmons 1858 crocodilian
Thoracosaurus neocesariensis De Kay 1842 crocodilian
 Squamata - Mosasauridae
Mosasaurus sp., "Mosasaurus ? maximus" = Mosasaurus hoffmanni
Mosasaurus sp. Parkinson 1822 mosasaur
"Mosasaurus ? maximus" = Mosasaurus hoffmanni Mantell 1829 mosasaur
 Sauropterygia - Elasmosauridae
Cimoliasaurus magnus Leidy 1851 elasmosaur
2 teeth, 1 vertebra