Palaeacmaea Hall and Whitfield 1872

Palaeacmaea

Full reference: J. Hall and R. P. Whitfield. 1872. Notice of two new species of fossil shells from the Potsdam sandstone of New York. Annual report of the Regents of the University of the State of New York 23:241-242

Parent taxon: Metazoa according to G. F. Webers and E. L. Yochelson 1999

See also Hall and Whitfield 1873

Sister taxa: Bilateria, Diploblastica, Homoblastica, Hyolithelminthida, Namalia, Vertebrosa, Westgardia, Parazoa, Deuteronectanebos, Eumetazoa, Hiemalora, Beltanelliformis, Kullingia, Muricassis, Gephyrea, Bomakellia, Goettingenia, Bronicella, Kinzeriidae, Kimberellomorpha, Silicispongea, Erniettomorpha, Silicea, Proarticulata, Mesozoa, Arboreomorpha, Yangtziramulus, Chenmengella, Primocandelabrum, Yelovichnus, Lazaichnus, Trichoplax, Triradialomorpha, Epitheliozoa, Sentularia, Mawsonites, Inaria, Ovatoscutum, Eodiorygma, Hadryniscala, Pseudovendia, Siphonoconcha, Hadrynichorde, Porifera, Euradiculata, Odontogriphidae, Chondroplon, Oligoopilionus, Macrocypris kayi, Dictyorhabdus, Yunnanomedusa, Lidaconus, Rangeomorpha, Xidazoon, Problematica, Nemiana, Spygoria, Petalonamae, Persimedusites, Funisia, Scenellopsis, Somatohelix, Evmiaksia, Cnidaria, Ventogyrus, Limacites, Kuckaraukia, Convolutubus, Tentaculitoidea, Protolyellia, Tetraradialomorpha, Rhizostomites, Megathrix, Subtilicyathus, Paracharnia, Armillifera, Pentaradialomorpha, Atalotaenia, Nectocarididae, Parviscopa, Bilaterialomorpha, Khasaktidae, Agmata, Lomosovis

Subtaxa: Palaeacmaea discoides Palaeacmaea horizontalis Palaeacmaea magnifica Palaeacmaea postuma Palaeacmaea typica

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Distribution:

• Triassic of Italy (1 collection)

• Silurian of the Czech Republic (1)

• Ordovician of Canada (1: Quebec), the Czech Republic (1), Estonia (3), United States (1: New York)

• Cambrian of China (1), United States (4: New York, Wisconsin)

Total: 13 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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