Right bank of Rio Gramame (Sphenodiscus zone) (Cretaceous of Brazil)

Where: Paraíba, Brazil (7.3° S, 34.8° W: paleocoordinates 11.4° S, 19.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Maastrichtian (72.1 - 66.0 Ma)

• STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. AGE: Maastrichtian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within local stratigraphic section.

• bed-level stratigraphic resolution

Environment/lithology: lithified, gray limestone

• ENVIRONMENT: Not stated in text, but apparently shallow marine carbonate.
• SPECIFIC LITHOLOGY: Gray limestone. LITHIFICATION: Lithified, on the basis of figured specimens and facies description.

Size class: macrofossils

Preservation: mold/impression

Collection methods: surface (in situ),

• COLLECTOR: Unknown. REPOSITORY: Geological Survey of Brazil.

Primary reference: C. J. Maury. 1930. O Cretaceo da Parahyba do Norte. Serviço Geologico E Mineralogico do Brasil Monographia 8:1-305 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88070: authorized by Austin Hendy, entered by Austin Hendy on 31.03.2009, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoids, with other taxa also listed. NOMENCLATURE: Authoritative publication, with antiquated nomenclature, but with species-resolution identifications.
Malacostraca
 Decapoda - Xanthidae
Xanthopsis brasiliana n. sp. Maury 1930 stone crab
Xanthopsis cretacea Rathbun 1902 stone crab
Bivalvia
 Myalinida - Inoceramidae
Inoceramus dominguesi n. sp. Maury 1930 clam
 Pectinida - Pectinoidae
Pecten gramamensis n. sp. Maury 1930 scallop
 Ostreida - Pinnidae
Pinna reginamaris n. sp. Maury 1930 oyster
Gastropoda
 Neogastropoda - Volutidae
Volutomorpha brasiliensis n. sp. Maury 1930 volute
 Stromboidea - Tylostomatidae
Tylostoma cf. materinum White 1887 snail
 Cypraeoidea - Eocypraeidae
""Cypraea" parahybensis n. sp." = Eocypraea (Eocypraea) parahybensis
""Cypraea" parahybensis n. sp." = Eocypraea (Eocypraea) parahybensis Maury 1930 snail
Cephalopoda
 Ammonitida - Pachydiscidae
Canadoceras riogramamense n. sp. Maury 1930 ammonite
Canadoceras andromeda n. sp. Maury 1930 ammonite
"Parapachydiscus dossantosi n. sp." = Pachydiscus (Pachydiscus) dossantosi Maury 1930 ammonite
Parapachydiscus arionis n. sp. Maury 1930 ammonite
Parapachydiscus oceanus n. sp. Maury 1930 ammonite
Parapachydiscus hera n. sp. Maury 1930 ammonite
Parapachydiscus hermes n. sp. Maury 1930 ammonite
Parapachydiscus albuquerquei n. sp. Maury 1930 ammonite
Parapachydiscus reedsi n. sp. Maury 1930 ammonite
Parapachydiscus poseidon n. sp. Maury 1930 ammonite
Parapachydiscus brasiliensis n. sp. Maury 1930 ammonite
Parapachydiscus psyche n. sp. Maury 1930 ammonite
Parapachydiscus williamsoni n. sp. Maury 1930 ammonite
Parapachydiscus perseus n. sp. Maury 1930 ammonite
Parapachydiscus endymion n. sp. Maury 1930 ammonite
Parapachydiscus bruneti n. sp. Maury 1930 ammonite
Parapachydiscus euzebioi n. sp. Maury 1930 ammonite
Parapachydiscus gettyi n. sp. Maury 1930 ammonite
Parapachydiscus sumneri n. sp. Maury 1930 ammonite
Parapachydiscus athena n. sp. Maury 1930 ammonite
 Ammonitida - Tetragonitidae
Pseudophilites amphitrite n. sp. Maury 1930 ammonite
Pseudophilites nereidideditus n. sp. Maury 1930 ammonite
 Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871 ammonite
Sphenodiscus parahybensis n. sp. Maury 1930 ammonite
 Ammonitida - Diplomoceratidae
Glyptoxoceras brasiliense n. sp. Maury 1930 ammonite
Glyptoxoceras parahybense n. sp. Maury 1930 ammonite
Chondrichthyes
 Lamniformes - Anacoracidae
"Corax pristodontus" = Squalicorax pristodontus
"Corax pristodontus" = Squalicorax pristodontus Agassiz 1843 crow shark
 Lamniformes - Lamnidae
Lamna serra Woodward 1889 mackerel shark
Actinopteri
 Salmoniformes - Enchodontidae
Enchodus oliveirai n. sp. Maury 1930
 Pycnodontiformes - Nursallidae
Palaeobalistum dossantosi n. sp. Maury 1930
Reptilia
  -
Reptilia indet. Laurenti 1768 reptile
 Pterosauria -
Nyctosaurus lamegoi n. sp. Price 1953 pterosaur
DGM 238-R, humerus
Asteroidea
 Spinulosida - Echinasteridae
Henricia parahybensis n. sp. Maury 1930 sea star
Echinoidea
 Spatangoida - Hemiasteridae
"Hemiaster jacksoni" = Mecaster batnensis
"Hemiaster jacksoni" = Mecaster batnensis Coquand 1862 heart urchin
 Calycina - Phymosomatidae
Cyphosoma riograndensis Maury 1925 sea urchin
SUBSPECIES: Cyphosoma riograndensis parahybensis
Monocotyledoneae
 Arecales - Palmae
Palmocarpon luisi n. sp. Maury 1930 palm