James T. Thomas estate: Serravallian, Maryland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Pliorhytis centenaria
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Sphaerula subvexa
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Zizyphinus bryanii n. sp.
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Cleistophaeridium placacanthum
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Weems and Edwards 2007 | |||||||||
Reptilia
- Procellariidae
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Puffinus sp.
Brisson 1760
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Wetmore 1926 | 1 specimen | ||||||||
Puffinus conradi n. sp.
Marsh 1870
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Marsh 1870 | 2 specimens | ||||||||
Reptilia
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Thecachampsa sericodon n. sp.
Cope 1867
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ANSP 9443-9445 - type | ||||||||||
Thecachampsa contusor n. sp.
Cope 1867
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synonym of Crocodilus antiquus | ||||||||||
ANSP 9152 - type | ||||||||||
Reptilia
- Testudines
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Trionyx cellulosus
Cope 1868
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nomen dubium belonging to Pantrionychidae | ||||||||||
Reptilia
- Testudines
- Cheloniidae
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Chelone sp.
Linnaeus 1758
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Mammalia
- Cetacea
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Rhabdosteus latiradix n. gen., n. sp.
Cope 1867
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Cope 1867 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Squalodon mento n. sp.
Cope 1867
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Cope 1867 | 1 specimen | ||||||||
invalid subgroup of Odontoceti | ||||||||||
It is not clear which locality Squalodon mento is actually from. | ||||||||||
Ixacanthus coelospondylus n. gen., n. sp.
Cope 1868
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Cope 1868 | 1 specimen | ||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Squalodon wymanii n. sp.
Cope 1867
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invalid subgroup of Odontoceti | ||||||||||
it is not clear which locality Squalodon wymanii is from. Only described as Miocene of Charles County, MD. | ||||||||||
Mammalia
- Cetacea
- Platanistidae
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Zarhachis flagellator n. gen., n. sp.
Cope 1868
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Cope 1868 | 1 specimen | ||||||||
Mammalia
- Cetacea
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Delphinapterus gabbii n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Delphinapterus lacertosus n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Delphinapterus hawkinsii n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Delphinapterus ruschenbergeri n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Priscodelphinus stenus n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Priscodelphinus atropius n. sp.
Cope 1868
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Cope 1868 | 11 specimens | ||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Priscodelphinus acutidens n. sp.
Cope 1867
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1 specimen | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Priscodelphinus spinosus n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Cetophis heteroclitus n. gen., n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Odontoceti | ||||||||||
Mammalia
- Cetacea
- Physeteridae
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Orycterocetus crocodilinus
Cope 1867
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Mammalia
- Cetacea
- Cetotheriidae
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Delphinapterus tyrannus n. sp.
Cope 1868
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Cope 1868 | |||||||||
synonym of Cetotherium parvum | ||||||||||
Mammalia
- Cetacea
- Balaenopteridae
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Eschrichtius cephalus n. sp.
Cope 1867
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(1 measurement) | ||||||||||
= ? Balaenoptera cephalus
Cope 1867
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Weems and Edwards 2007 | |||||||||
Mammalia
- Cetacea
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Balaenoptera pusilla n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen vanum belonging to Mysticeti | ||||||||||
Megaptera expansa n. sp.
Cope 1868
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Cope 1868 | |||||||||
nomen dubium belonging to Mysticeti | ||||||||||
Actinopteri
- Scombriformes
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Sphyraena speciosa
Leidy 1856
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recombined as Sphyraenodus speciosus | ||||||||||
Chondrichthyes
- Myliobatiformes
- Dasyatidae
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Raja dux
Cope 1867
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recombined as Trygon dux | ||||||||||
Chondrichthyes
- Myliobatiformes
- Aetobatidae
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Aetobatis profundus n. sp.
Cope 1867
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Aetobatis arcuatus
Agassiz 1843
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Leriche 1942 | |||||||||
synonym of Aetobatus irregularis | ||||||||||
Aetobatus arcuatus
(Agassiz 1843)
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synonym of Aetobatus irregularis | ||||||||||
[entered as Aetobatis arcuatus] | ||||||||||
Chondrichthyes
- Myliobatiformes
- Myliobatidae
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Myliobatis gigas
Cope 1868
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Myliobatis vicomicanus
Cope 1868
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Myliobatis pachyodon
Cope 1868
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Chondrichthyes
- Carcharhiniformes
- Galeocerdidae
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Galeocerdo appendiculatus
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Galeocerdo sp.
Müller and Henle 1837
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Galeocerdo aduncus
(Agassiz 1835)
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Galeocerdo egertoni
(Agassiz 1843)
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recombined as Prionodon egertoni | ||||||||||
Galeocerdo latidens
(Agassiz 1835)
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Chondrichthyes
- Carcharhiniformes
- Sphyrnidae
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Sphyrna sp.
Rafinesque 1810
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Galeocerdo laevissimus n. sp.
Cope 1867
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recombined as Sphyrna laevissima | ||||||||||
Sphyrna magna
Cope 1868
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Chondrichthyes
- Carcharhiniformes
- Carcharhinidae
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Galeocerdo contortus
Gibbes 1847
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recombined as Physogaleus contortus | ||||||||||
Chondrichthyes
- Carcharhiniformes
- Hemigaleidae
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Hemipristis serra
Agassiz 1835
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Chondrichthyes
- Lamniformes
- Odontaspididae
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Lamna cuspidata
Agassiz 1843
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recombined as Araloselachus cuspidatus | ||||||||||
Lamna denticulata
Agassiz 1843
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synonym of Araloselachus cuspidatus | ||||||||||
Chondrichthyes
- Lamniformes
- Mitsukurinidae
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Lamna elegans
Agassiz 1838
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synonym of Otodus macrotus | ||||||||||
Lamna ? subulata
(Agassiz 1843)
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recombined as Eostriatolamia subulata | ||||||||||
Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharodon ? angustidens
(Agassiz 1835)
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recombined as Otodus (Carcharocles) angustidens | ||||||||||
Carcharodon megalodon
(Agassiz 1835)
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recombined as Otodus megalodon | ||||||||||
Otodus obliquus
Agassiz 1838
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Otodus appendiculatus
(Agassiz 1835)
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recombined as Cretalamna appendiculata | ||||||||||
Chondrichthyes
- Lamniformes
- Carchariidae
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Lamna hopei
(Agassiz 1843)
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recombined as Carcharias hopei | ||||||||||
Chondrichthyes
- Squalomorphii
- Hexanchidae
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Notidanus plectrodon n. sp.
Cope 1867
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synonym of Notorynchus cepedianus | ||||||||||
Notidanus primigeneus
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Chondrichthyes
- Heterodontiformes
- Heterodontidae
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Sphyrna prisca
Agassiz 1843
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recombined as Cestracion prisca | ||||||||||
Craniata
- Craniida
- Craniidae
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Orbicula lububris
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replaced by Neocrania | ||||||||||
Gastropoda
- Lepetellida
- Fissurellidae
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Fissurella redimicula
Say 1824
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recombined as Diodora redimicula | ||||||||||
Gastropoda
- Turritellidae
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Turritella alticostata
Conrad 1834
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recombined as Turritella (Turritella) alticostata | ||||||||||
Turritella indenta
Conrad 1841
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Gastropoda
- Epitoniidae
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Scala pachypleura
(Conrad 1841)
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Gastropoda
- Naticidae
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Lunatia catenoides
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Gastropoda
- Neogastropoda
- Muricidae
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Ecphora quadricostata
(Conrad 1830)
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Gastropoda
- Ranellidae
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Bursa centrosa n. sp.
Cope 1867
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recombined as Tritonium centrosum | ||||||||||
Bivalvia
- Pectinida
- Pectinidae
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Pecten madisonius
Say 1824
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recombined as Chesapecten madisonius | ||||||||||
Pecten jeffersonius
Say 1824
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recombined as Chesapecten jeffersonius | ||||||||||
Pecten humphreysii
Conrad 1842
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Pecten cerinus n. sp.
Conrad 1869
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recombined as Eburneopecten cerinus | ||||||||||
Pecten clintonius
Say 1824
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recombined as Placopecten clintonius | ||||||||||
Pecten marylandicus
Wagner 1839
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recombined as Placopecten marylandica | ||||||||||
Pecten virginianus
Conrad 1840
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recombined as Placopecten virginiana | ||||||||||
Bivalvia
- Pectinida
- Anomiidae
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Anomia multilineata
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Bivalvia
- Ostreida
- Malleidae
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Isognomon tortum
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Bivalvia
- Ostreida
- Pinnidae
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Pinna sp.
Linnaeus 1758
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea thomasii n. sp.
Conrad 1867
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= Ostreidae indet.
Rafinesque 1815
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Bouchet et al. 2005 | |||||||||
Ostera thomasii (syn. Cubitostrea sellaeformis) is from the Middle Eocene | ||||||||||
Ostrea trachydiscus n. sp.
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Bivalvia
- Arcida
- Noetiidae
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Noetia carolinensis
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Bivalvia
- Arcida
- Arcidae
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Arca callipleura
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Arca improcera
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Bivalvia
- Arcida
- Glycymerididae
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Glycimeris americanus
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= Glycymeris americana
Defrance 1826
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Hendy et al. 2008 | |||||||||
Axinaea lentiformis
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synonym of Glycymeris | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
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Cardium laqueatum
Conrad 1830
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recombined as Chesacardium laqueatum | ||||||||||
Bivalvia
- Cardiida
- Tellinidae
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Metis biplicata
(Conrad 1834)
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recombined as Florimetis biplicata | ||||||||||
Bivalvia
- Cardiida
- Glossidae
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Isocardia fraterna
Say 1824
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recombined as Glossus fraterna | ||||||||||
Isocardia markoii
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Bivalvia
- Cardiida
- Chamidae
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Chama corticosa
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Bivalvia
- Cardiida
- Veneridae
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Dosinia acetabulum
(Conrad 1832)
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Mercenaria staminea
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Mercenaria cuneata n. sp.
Conrad 1869
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Dione staminaea
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synonym of Hysteroconcha | ||||||||||
Dione marylandica
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synonym of Hysteroconcha | ||||||||||
Bivalvia
- Pholadida
- Corbulidae
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Corbula idonea
Conrad 1833
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recombined as Bicorbula idonea | ||||||||||
Corbula pectorosa n. sp.
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Bivalvia
- Lucinida
- Lucinidae
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Lucina contracta
Say 1824
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recombined as Lucinoma contracta | ||||||||||
Lucina americana
Adams 1852
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synonym of Divalinga quadrisulcata | ||||||||||
Lucina foremani
Conrad 1841
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recombined as Stewartia foremani | ||||||||||
Bivalvia
- Carditida
- Crassatellidae
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Crassatella marylandica
Conrad 1832
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recombined as Marvacrassatella marylandica | ||||||||||
Crassatella melina
Conrad 1832
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recombined as Marvacrassatella melina | ||||||||||
Bivalvia
- Carditida
- Carditidae
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Carditamera protracta
Conrad 1843
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recombined as Cardita protracta | ||||||||||
Cyclocardia granulata
(Say 1824)
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Bivalvia
- Carditida
- Astartidae
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Astarte exaltata
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Astarte cuneiformis
Conrad 1840
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Astarte undulata
Say 1824
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= Astarte undata
Gould 1841
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Hendy et al. 2008 | |||||||||
Astarte perplana
Conrad 1840
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Thecostraca
- Balanomorpha
- Balanidae
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Balanus proteus
Conrad 1834
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recombined as Chesaconcavus proteus | ||||||||||
Balanus vulcanellus n. sp.
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Anthozoa
- Scleractinia
- Acroporidae
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Madrepora palmata
Lamarck 1816
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recombined as Acropora palmata | ||||||||||
unclassified
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Cyclopsiella lusatica
|
Weems and Edwards 2007 | |||||||||
Pentadinium cf. latincinctum
|
Weems and Edwards 2007 | |||||||||
subspecies granulatum | ||||||||||
Dinophyceae
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Spiniferites sp.
Mantell 1850
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Weems and Edwards 2007 | |||||||||
Spiniferites mirabilis
Sarjeant 1970
|
Weems and Edwards 2007 | |||||||||
Hystrichosphaeropsis obscura
|
Weems and Edwards 2007 | |||||||||
Dinophyceae
- Gonyaulacales
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Reticulatosphaera actinocoronata
Bujak and Matsuoka 1986
|
Weems and Edwards 2007 | |||||||||
Batiacasphaera sphaerica
|
Weems and Edwards 2007 | |||||||||
Labyrinthodinium truncatum
|
Weems and Edwards 2007 | |||||||||
Dinophyceae
- Gonyaulacales
- Gonyaulacaceae
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Lingulodinium macherophorum
|
Weems and Edwards 2007 | |||||||||
Habibacysta tectata
|
Weems and Edwards 2007 | |||||||||
Operculodinium piaseckii
|
Weems and Edwards 2007 | |||||||||
Operculodinium centrocarpum
Wall 1967
|
Weems and Edwards 2007 | |||||||||
Dinophyceae
- Peridiniales
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Tuberculodinium vancampoae
Wall 1967
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Weems and Edwards 2007 | |||||||||
Dinophyceae
- Peridiniales
- Deflandreaceae
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Palaeocystodinium golzowense
Alberti 1961
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Weems and Edwards 2007 | |||||||||
Dinophyceae
- Peridiniales
- Protoperidiniaceae
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Sumatradinium druggii
|
Weems and Edwards 2007 | |||||||||
Dinophyceae
- Peridiniales
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Tectatodinium pellitum
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Weems and Edwards 2007 | |||||||||
unclassified
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Crassatella undulata
Say 1824
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synonym of Kalolophus antillarum | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Maryland | County: | Charles |
Coordinates: | 38.5° North, 76.7° West (view map) | ||||
Paleocoordinates: | 38.7° North, 73.9° West | ||||
Basis of coordinate: | estimated from map |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Serravallian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Serravallian | ||
Age range of interval: | 13.82000 - 11.63000 m.y. ago |
Stratigraphy
Geological group: | Chesapeake | Formation: | Calvert | Member: | Calvert Beach |
Regional section: | Shattuck | Regional bed: | 14 | ||
Regional order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Cope refers to the beds as "Yorktown" but they are much more likely to be Calvert Formation since the Yorktown is not thought to crop out in Maryland, DN5. Zones 14-16A are regarded as Serravallian in age.
Age and Member after Weems and Edwards (2007). |
Lithology and environment
Primary lithology: | not reported |
Environment: | offshore shelf |
Geology comments: sparse molluscs, low in diversity; subtropical environment in embayment and dry onshore; area not far from shore, bay, short-term eustatic transgression events, long-term regression trend
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Taphonomy
Modes of preservation: | body,original phosphate |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 55396 | ||
Authorizer: | M. Uhen, A. Hendy | Enterer: | M. Uhen, A. Hendy |
Modifier: | G. Varnham | Research group: | marine invertebrate,vertebrate |
Created: | 2005-10-14 11:00:42 | Last modified: | 2022-03-03 05:29:18 |
Access level: | the public | Released: | 2005-10-14 11:00:42 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
12189. | E. D. Cope. 1867. An addition to the vertebrate fauna of the Miocene period, with a synopsis of the extinct Cetacea of the United States. Proceedings of the Academy of Natural Sciences of Philadelphia 19(4):138-157 [M. Uhen/M. Uhen/M. Carrano] |
Secondary references:
14945 | P. Bouchet, J.-P. Rocroi, J. Frýda, B. Hausdorf, W. Ponder, A. Valdes, and A. Warén. 2005. A nomenclator and classification of gastropod family-group names. Malacologia 47(1-2):1-368 [P. Wagner/P. Wagner] | |
14163 | E. D. Cope. 1867. [Descriptions of Eschrichtius cephalus, Rhabdosteus latiradix, Squalodon atlanticus, and S. mento.]. Proceedings of the Academy of Natural Science of Philadelphia 1867:131-132 [M. Uhen/M. Uhen/M. Uhen] | |
12174 | E. D. Cope. 1868. Second contribution to the history of the Vertebrata of the Miocene period of the United States. Proceedings of the Academy of Natural Sciences of Philadelphia 1868:184-194 [M. Uhen/M. Uhen/M. Uhen] | |
12195 | E. D. Cope. 1868. [Extinct Cetacea from the Miocene bed of Maryland]. Proceedings of the Academy of Natural Sciences Philadelphia 20(3):159-160 [M. Uhen/M. Uhen/M. Uhen] | |
19909 | A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. [A. Hendy/A. Hendy/A. Hendy] | |
28099 | M. Leriche. 1942. Contribution a l'etude des faunes ichthyologiques marines des terrains tertiaires de la plaine cotiere Atlantique et du centre des Etats-Unis. Memoires de la Societe Geologique de France (Nouvelle Serie) 45:1-111 [M. Uhen/M. Uhen] | |
29790 | ETE | O. C. Marsh. 1870. Notice of some fossil birds, from the Cretaceous and Tertiary formations of the United States. American Journal of Science and Arts, series 2 49(145):205-217 [M. Uhen/M. Uhen/M. Carrano] |
25325 | R. E. Weems and L. E. Edwards. 2007. The age and provenance of "Eschrichtius" cephalus Cope (Mammalia: Cetacea). Journal of Vertebrate Paleontology 27(3):752-756 [M. Uhen/M. Uhen] | |
40145 | A. Wetmore. 1926. Observations on Fossil Birds Described from the Miocene of Maryland. The Auk 43(4):462-468 [M. Uhen/M. Shalap] |