Subtriangular eggs had a latticework of polygons on the endochorionic surface.
Juan S. MANTILLA, Ligia I. MONCADA, Nubia E. MATTA, Peter H. ADLER 2015, 'Oviposition behavior and microstructure of the eggs of Simulium dinellii (Joan) (Diptera:Simuliidae)', Acta Biológica Colombianahttps://revistas.unal.edu.co/index.php/actabiol/article/view/43149. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The results show medium-sized pollen grains that were oblate spheroidal or prolate spheroidal and subtriangular amb and tricolporate.
Mariana Albuquerque de Souza, Claudia Barbieri Ferreira Mendonça, Roberto LourençoEsteves, Vania Gonçalves-Esteves 2016, 'Pollen morphology of species of Graphistylis B. Nord. (Asteraceae) of Brazil', Acta Botânica Brasílicahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100138&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Enclosed elliptical or subtriangular areas in apertural parts of the anterior lateral sinuses were found for the first time.
Aleksandr A. Mironenko 2015, 'The soft-tissue attachment scars in Late Jurassic ammonites from Central Russia',Acta Palaeontologica Polonicahttp://www.app.pan.pl/archive/published/app60/app000412013.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)