Monodechenella macrocephala

Table of Contents

Scientific Classification


Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Proetida
Family: Proetidae
Genus: Monodechenella
Species: Monodechenella macrocephala (Hall, 1861)

Information

Geological Range

Middle Devonian

Paleogeographic Distribution

New York

Pennsylvania

Stratigraphic Occurrences

Tully Formation

Moscow Formation

Deep Run Member

Windom Member

Kashong Member

Ludlowville Formation

Centerfield Member

Wanakah Member

Mahantango Formation

Centerfield Member

Frame Member

Crooked Creek Member

References

Lieberman (1994): Evolution of the trilobite subfamily Proetinae Salter, 1864, and the origin, diversification, evolutionary affinity, and extinction of the Middle Devonian proetid fauna of eastern North America. in Bulletin of the American Museum of Natural History 223: pp. 1-176.

Jell and Adrain (2002): Available generic names for trilobites. Memoirs of the Queensland Museum 48(2): 331-553.

Wilson (2014): p. 200.

Remarks

From Lieberman (1994): “Lateral margins of glabella between S 1 and nearly S2 parallel; Si contacts SO; posterior margin of glabella anterior of SO, in dorsal view, straight; pygidial interpleural furrows absent; border posteriorly long flat region, equal to length (sag.) of first 1.5 axial rings; 14 axial rings; pleurae laterally deflected anteriorly relative to arc of pleurae medially; 12 pleural segments.”

From Wilson (2014, p. 200): “Form of the glabella and furrows distinctive. Eyes relatively small; pygidium proportionately larger than those of Pseudodechenella or Dechenella, with 13-14 axial rings. Cephalon covered with low tubercles that become less distinct on the anterior glabella and the depressed areas of the cheeks. To 35 mm.”