Gray farm, Hornerstown: Late/Upper Campanian - Early/Lower Maastrichtian, New Jersey
collected by G. Case 1980
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Demospongiae
- Clavulina
- Clionaidae
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Cliona microtuberum
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Reptilia
- Testudines
- Protostegidae
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Protostegidae indet.
Cope 1873
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| or "a remarkably late survival of Protostega" | ||||||||||
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Actinopteri
- Aulopiformes
- Enchodontidae
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Enchodus ferox
Leidy 1855
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Chondrichthyes
- Rajiformes
- Sclerorhynchidae
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Ischyrhiza mira
Leidy 1856
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Chondrichthyes
- Lamniformes
- Anacoracidae
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Squalicorax pristodontus
(Agassiz 1835)
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Chondrichthyes
- Myliobatiformes
- Myliobatidae
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Brachyrhizodus wichitaensis
Romer 1942
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Rhynchonellata
- Terebratulida
- Terebrataliidae
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Choristothyris plicata
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Bivalvia
- Arcida
- Cucullaeidae
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Cucullaea antrosa
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Bivalvia
- Myalinida
- Inoceramidae
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Inoceramus sp.
Sowerby 1814
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Bivalvia
- Ostreida
- Flemingostreidae
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Agorostrea mesenterica
(Morton 1834)
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| recombined as Lopha mesenterica | ||||||||||
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Agorostrea falcata
(Morton 1827)
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| recombined as Agerostrea falcata | ||||||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte (Gryphaea) mutabilis
Morton 1828
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Exogyra cancellata
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Exogyra costata
(Say 1820)
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| original and current combination Exogyra (Exogyra) costata | ||||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Pecten venustus
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Bivalvia
- Pectinida
- Spondylidae
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Spondylus gregalis
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Dianchora echinata
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Bivalvia
- Pectinida
- Plicatulidae
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Plicatula urticosa
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Bivalvia
- Carditida
- Crassatellidae
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Crassatellites vadosus
(Morton 1834)
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| original and current combination Crassatella vadosa | ||||||||||
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Bivalvia
- Pholadida
- Pholadidae
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Pholas sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Cardiidae
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Pachycardium sp.
Conrad 1869
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| spelled with current rank as Protocardia (Pachycardium) | ||||||||||
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Cephalopoda
- Belemnitida
- Belemnitellidae
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Belemnitella americana
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites ovatus
(Say 1820)
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Cephalopoda
- Ammonitida
- Scaphitidae
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Scaphites sp.
Parkinson 1811
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Gastropoda
- Naticidae
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Amaurellina sp.
Fischer 1885
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Malacostraca
- Decapoda
- Callianassidae
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Protocallianassa mortoni
(Rathbun 1935)
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| original and current combination Callianassa mortoni | ||||||||||
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Malacostraca
- Decapoda
- Nephropidae
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Hoploparia gabbi
Pilsbry 1901
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | New Jersey | County: | Monmouth |
| Coordinates: | 40.1° North, 74.6° West (view map) | ||||
| Paleocoordinates: | 39.6° North, 45.6° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Key time interval: | Late/Upper Campanian - Early/Lower Maastrichtian | ||
| Age range of interval: | 83.60000 - 66.00000 m.y. ago |
Stratigraphy
| Geological group: | Monmouth | Formation: | Mount Laurel | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: bulldozed sediments in spoil pile, but matrix on bone indicates Mount Laurel Fm., not overlying Navesink Fm. From near top of formation. | |||||
Lithology and environment
| Primary lithology: | gray,yellow sandy claystone |
| Includes fossils? | Y |
| Lithology description: "yellowish-gray sandy clay" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils,microfossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | frequent |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection methods: | salvage,field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | G. Case | Collection dates: | 1980 |
| Collection method comments: Collected by G. Case, deposited in Princeton Museum (presumably now at YPM) | |||
Metadata
| Database number: | 46617 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2005-01-21 06:17:45 | Last modified: | 2020-08-17 11:36:25 |
| Access level: | the public | Released: | 2005-01-21 06:17:45 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 779. | D. Baird. 1984. Evidence of giant protostegid sea-turtles in the Cretaceous of New Jersey. The Mosasaur 2:135-140 [J. Alroy/M. Sommers/M. Uhen] |