針球接子屬(學名:Acadagnostus),又名古球接子屬,是生存於中寒武紀的一屬球接子目三葉蟲,生活在深海中。牠們是一類體型很小的無眼三葉蟲,僅有兩個胸節,捲曲得很緊。頭尾大小相當。頭鞍前面有條溝槽將該部分分為兩半。在尾甲中軸後面也有一條相似的溝槽。[1]
下屬物種
本屬包括以下物種:
- †Acadagnostus acadicus (Hartt in Dawson, 1868), 異名 Agnostus acadicus, Peronopsis tramitis, Pseudoperonopsis iniugata
- †Acadagnostus ancisa (Öpik, 1979) 異名 Pseudoperonopsis ancisa
- †Acadagnostus australis (Robison, 1978) 異名 Baltagnostus australis
- †Acadagnostus certus (Öpik, 1979) 異名 Euagnostus certus
- †Acadagnostus karatauensis (F. Ergaliev, 2008) 異名 Lisogoragnostus karatauensis
- †Acadagnostus rakuroensis Kobayashi, 1939 異名 Agnostus damesi, Agnostus liaotungensis, Peronopsis uzbekistanica
- †Acadagnostus syrma (Öpik, 1979),異名 Pseudoperonopsis syrma[2]
參考文獻
外部連結
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.