Breitelen, Hallau layers d & e (Triassic of Switzerland)

Also known as Unter-Hallau, Hallau-Bratelen

Where: Schaffhausen, Switzerland (47.7° N, 8.5° E: paleocoordinates 35.2° N, 10.7° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Gruhalde Member (Klettgau Formation), Rhaetian (208.5 - 201.3 Ma)

• from layers d & e (mixed collection), possibly reworked from layer c (Knollemergel), occasionally termed the "Zanclodonmergel". Layers d and e are the Bratelen bonebeds and form the topmost beds of the Gruhalde Member of the Klettgau Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; poorly lithified marl and lithified marl

• "Layers d and e consist of 0.25 m of compact "Zanclodonmergel" breccia with bone bed (d) and 1.00 m of loose marl bonebed (e, with same vertebrate fossils as d)."

Size class: macrofossils

Collected by Peyer in 1942

Collection methods: bulk, core, mechanical, sieve,

Primary reference: B. Peyer. 1956. Über Zähne von Haramiyiden, von Triconodonten und von wahrscheinlich synapsiden Reptilien aus dem Rhät von Hallau, Kt. Schaffhausen, Schweiz [On the teeth of haramiyids, triconodonts, and probable synapsid reptiles from the Rhaetic of Hallau, Kanton Schaffhausen, Switzerland]. Schweizerische Paleontologische Abhandlungen 72:1-72 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51235: authorized by Matthew Carrano, entered by Matthew Carrano on 01.06.2005, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Diapsida -
Archosauriformes indet.1 Gauthier 1986 archosauromorph
 Pterosauria - Campylognathoididae
cf. Eudimorphodon sp.2 Zambelli 1973 pterosaur
 Diapsida - Trilophosauridae
? Variodens sp.2 Robinson 1957 archosauromorph
 Eosuchia -
Sphenodontia indet.4 Jaekel 1910 lepidosaur
PIMUZ A/III 4407, right dentary fragment
 Rhynchocephalia - Gephyrosauridae
Deltadectes elvetica n. gen. n. sp.4
Deltadectes elvetica n. gen. n. sp.4 Whiteside et al. 2017 rhynchocephalian
PIMUZ A/III 4410, partial left dentary (holotype). PIMUZ A/III 4404, 4405, 4406, 4414, 4416, 4418, 4426
 Eosuchia - Sphenodontidae
Paleollanosaurus sp.4 Heckert 2004 lepidosaur
PIMUZ A/III 4412, dentary fragment
Osteichthyes
 Morganucodonta - Morganucodontidae
? Morganucodon sp.2 Kuehne 1949 mammaliaform
Morganucodon peyeri n. sp.2 Clemens 1980 mammaliaform
Helvetiodon schutzi n. gen. n. sp.3 Clemens 1980 mammaliaform
 Morganucodonta -
Hallautherium schalchi n. gen. n. sp.3
Hallautherium schalchi n. gen. n. sp.3 Clemens 1980 mammaliaform
 Therapsida - Haramiyidae
? Haramiyidae indet.2, ? Thomasia sp.2, cf. Thomasia sp.2, "cf. Thomasia antiqua" = Thomasia antiqua2, "Thomasia anglica" = Thomasia antiqua2, "Haramiya moorei" = Thomasia moorei2
? Haramiyidae indet.2 Simpson 1940 mammaliaform
? Thomasia sp.2 Poche 1908 mammaliaform
cf. Thomasia sp.2 Poche 1908 mammaliaform
"cf. Thomasia antiqua" = Thomasia antiqua2 Plieninger 1847 mammaliaform
"Thomasia anglica" = Thomasia antiqua2 Plieninger 1847 mammaliaform
"Haramiya moorei" = Thomasia moorei2 Owen 1871 mammaliaform
 Therapsida -
Tricuspes cf. tuebingensis2 Huene 1933 therapsid
 Dipnoi - Ceratodontidae
Ceratodus parvus Agassiz 1838 lungfish
Actinopteri
 Semionotiformes - Semionotidae
Sargodon tomicus Plieninger 1847
 Holostei - Dapediidae
"Dapedius sp." = Dapedium
"Dapedius sp." = Dapedium Leach 1822