Spinaeblattina myanmarensis gen. et sp. nov. and Blattoothecichnus argenteus ichnogen. et ichnosp. nov. (both Mesoblattinidae) from mid-Cretaceous Myanmar amber

Mid-Cretaceous amber from Myanmar, also known as “burmite”, has produced 1013 species of which 693 are Insects. The Mesozoic cockroach record is rich, with thousands of specimens that show diverse ecological adaptations. Cretaceous cockroaches in amber have been reported from Lebanon, Taimyr, New Je...

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Bibliographic Details
Published in:Cretaceous research 2019-07, Vol.99, p.229-239
Main Author: Hinkelman, Jan
Format: Article
Language:English
Subjects:
Ancient organic crystals
Cretaceous cockroach
Fossil insect
Mesozoic amber
Ootheca
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Summary:Mid-Cretaceous amber from Myanmar, also known as “burmite”, has produced 1013 species of which 693 are Insects. The Mesozoic cockroach record is rich, with thousands of specimens that show diverse ecological adaptations. Cretaceous cockroaches in amber have been reported from Lebanon, Taimyr, New Jersey and France. Cockroaches from Myanmar amber are represented by at least 74 species, of which 14 are formally described. Spinaeblattina with S. myanmarensis gen. et sp. nov. and S. yixianensis comb. n. = Piniblattella yixianensis from the Yixian Formation is along with Cratovitisma the second genus of the Mesoblattinidae known from both amber and sedimentary deposits. Fossil ootheca are rare with 6 specimens reported so far and the present isolated one, Blattoothecichnus argenteus ichnogen. et ichnosp. nov., is the most ancient, portable, otherwise resembling that of Cryptocercus. Ancient crystals of organic salt, calcium oxalate, forming the ootheca protective layer have been preserved on its surface.
ISSN:0195-6671
1095-998X
DOI:10.1016/j.cretres.2019.02.026