Gan150 nam sau phat hien hoa thach dau tien cua con Archaeopteryx, motnghien cuu moi duoc dang tren tap chi  Science lai dien ta mau hoa thachthu 10. Cac du lieu  moi duoc thu thap boi cac nha nghien cuu  da xacnhan no co quan he nguon goc voi loai khung long nhung lai xa voi loaichim hien dai.

Hoathach vua phat hien duoc goi la “mau Thermopolis” co kich thuoc  cua motcon chim ac la. No xuat phat tu Duc va co the da song cach day 150trieu nam vao cuoi ky Jura. No trong giong nhu mot con chim, nhung cunggiong mot con khung long. Trong so 10 mau, day la mau duoc bao quan totnhat va co nhung net giong voi loai khung long an thit Deinonychosaurusnhu o xuong so va chan.

Ngonchan thu nhat cua no khong quay nguoc ra ngoai, khac voi loai chim hiendai, ma quay vao ben trong nhu ngon tay cai cua nguoi, chung to conchim the dau tren cao. No co ve thich nghi voi cuoc song  o duoi dat honso voi o tren cay.

Viecphan loai mau Thermopolis van con la dieu nan giai. Cac quan sat moi dakhien cho viec phan biet giua bo Archeopterygids (bao gom con chim coArchaeopteryx) va bo Deinonychosaurus (bo khung long an thit bao gomloai Velociraptor) cang tro nen kho khan.

Tuynhien doi voi nha nghien cuu  chim co Gerard Mayr, tac gia  chinh cua baibao tren tap chi  Science, day la mau hoa thach quy hiem. Con vat lalung nay hien dang duoc dat tai Trung tam  khung long Wyoming oThermopolis (My).  

Ban co y kien gi ve bai viet Hoa thach cua chim hay khung long? nay? Hay goi suy nghi, binh luan, danh gia, loi khuyen ... cua ban ve bai viet Hoa thach cua chim hay khung long? ban tai day.